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Posted to commits@lucene.apache.org by nk...@apache.org on 2018/10/09 00:06:32 UTC

[1/4] lucene-solr:master: LUCENE-8496: Selective indexing - modify BKDReader/BKDWriter to allow users to select a fewer number of dimensions to be used for creating the index than the total number of dimensions used for field encoding. i.e., dimensions 0

Repository: lucene-solr
Updated Branches:
  refs/heads/master df07a43b5 -> 1118299c3


http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/test-framework/src/java/org/apache/lucene/index/AssertingLeafReader.java
----------------------------------------------------------------------
diff --git a/lucene/test-framework/src/java/org/apache/lucene/index/AssertingLeafReader.java b/lucene/test-framework/src/java/org/apache/lucene/index/AssertingLeafReader.java
index 4bd806e..aa12de7 100644
--- a/lucene/test-framework/src/java/org/apache/lucene/index/AssertingLeafReader.java
+++ b/lucene/test-framework/src/java/org/apache/lucene/index/AssertingLeafReader.java
@@ -1048,7 +1048,7 @@ public class AssertingLeafReader extends FilterLeafReader {
 
     @Override
     public void intersect(IntersectVisitor visitor) throws IOException {
-      in.intersect(new AssertingIntersectVisitor(in.getNumDimensions(), in.getBytesPerDimension(), visitor));
+      in.intersect(new AssertingIntersectVisitor(in.getNumDataDimensions(), in.getNumIndexDimensions(), in.getBytesPerDimension(), visitor));
     }
 
     @Override
@@ -1069,8 +1069,13 @@ public class AssertingLeafReader extends FilterLeafReader {
     }
 
     @Override
-    public int getNumDimensions() throws IOException {
-      return in.getNumDimensions();
+    public int getNumDataDimensions() throws IOException {
+      return in.getNumDataDimensions();
+    }
+
+    @Override
+    public int getNumIndexDimensions() throws IOException {
+      return in.getNumIndexDimensions();
     }
 
     @Override
@@ -1093,7 +1098,8 @@ public class AssertingLeafReader extends FilterLeafReader {
   /** Validates in the 1D case that all points are visited in order, and point values are in bounds of the last cell checked */
   static class AssertingIntersectVisitor implements IntersectVisitor {
     final IntersectVisitor in;
-    final int numDims;
+    final int numDataDims;
+    final int numIndexDims;
     final int bytesPerDim;
     final byte[] lastDocValue;
     final byte[] lastMinPackedValue;
@@ -1102,13 +1108,14 @@ public class AssertingLeafReader extends FilterLeafReader {
     private int lastDocID = -1;
     private int docBudget;
 
-    AssertingIntersectVisitor(int numDims, int bytesPerDim, IntersectVisitor in) {
+    AssertingIntersectVisitor(int numDataDims, int numIndexDims, int bytesPerDim, IntersectVisitor in) {
       this.in = in;
-      this.numDims = numDims;
+      this.numDataDims = numDataDims;
+      this.numIndexDims = numIndexDims;
       this.bytesPerDim = bytesPerDim;
-      lastMaxPackedValue = new byte[numDims*bytesPerDim];
-      lastMinPackedValue = new byte[numDims*bytesPerDim];
-      if (numDims == 1) {
+      lastMaxPackedValue = new byte[numDataDims*bytesPerDim];
+      lastMinPackedValue = new byte[numDataDims*bytesPerDim];
+      if (numDataDims == 1) {
         lastDocValue = new byte[bytesPerDim];
       } else {
         lastDocValue = null;
@@ -1132,14 +1139,14 @@ public class AssertingLeafReader extends FilterLeafReader {
       assert lastCompareResult == PointValues.Relation.CELL_CROSSES_QUERY;
 
       // This doc's packed value should be contained in the last cell passed to compare:
-      for(int dim=0;dim<numDims;dim++) {
-        assert FutureArrays.compareUnsigned(lastMinPackedValue, dim * bytesPerDim, dim * bytesPerDim + bytesPerDim, packedValue, dim * bytesPerDim, dim * bytesPerDim + bytesPerDim) <= 0: "dim=" + dim + " of " +  numDims + " value=" + new BytesRef(packedValue);
-        assert FutureArrays.compareUnsigned(lastMaxPackedValue, dim * bytesPerDim, dim * bytesPerDim + bytesPerDim, packedValue, dim * bytesPerDim, dim * bytesPerDim + bytesPerDim) >= 0: "dim=" + dim + " of " +  numDims + " value=" + new BytesRef(packedValue);
+      for(int dim=0;dim<numIndexDims;dim++) {
+        assert FutureArrays.compareUnsigned(lastMinPackedValue, dim * bytesPerDim, dim * bytesPerDim + bytesPerDim, packedValue, dim * bytesPerDim, dim * bytesPerDim + bytesPerDim) <= 0: "dim=" + dim + " of " +  numDataDims + " value=" + new BytesRef(packedValue);
+        assert FutureArrays.compareUnsigned(lastMaxPackedValue, dim * bytesPerDim, dim * bytesPerDim + bytesPerDim, packedValue, dim * bytesPerDim, dim * bytesPerDim + bytesPerDim) >= 0: "dim=" + dim + " of " +  numDataDims + " value=" + new BytesRef(packedValue);
       }
 
       // TODO: we should assert that this "matches" whatever relation the last call to compare had returned
-      assert packedValue.length == numDims * bytesPerDim;
-      if (numDims == 1) {
+      assert packedValue.length == numDataDims * bytesPerDim;
+      if (numDataDims == 1) {
         int cmp = FutureArrays.compareUnsigned(lastDocValue, 0, bytesPerDim, packedValue, 0, bytesPerDim);
         if (cmp < 0) {
           // ok
@@ -1163,11 +1170,11 @@ public class AssertingLeafReader extends FilterLeafReader {
 
     @Override
     public Relation compare(byte[] minPackedValue, byte[] maxPackedValue) {
-      for(int dim=0;dim<numDims;dim++) {
+      for(int dim=0;dim<numIndexDims;dim++) {
         assert FutureArrays.compareUnsigned(minPackedValue, dim * bytesPerDim, dim * bytesPerDim + bytesPerDim, maxPackedValue, dim * bytesPerDim, dim * bytesPerDim + bytesPerDim) <= 0;
       }
-      System.arraycopy(maxPackedValue, 0, lastMaxPackedValue, 0, numDims*bytesPerDim);
-      System.arraycopy(minPackedValue, 0, lastMinPackedValue, 0, numDims*bytesPerDim);
+      System.arraycopy(maxPackedValue, 0, lastMaxPackedValue, 0, numIndexDims*bytesPerDim);
+      System.arraycopy(minPackedValue, 0, lastMinPackedValue, 0, numIndexDims*bytesPerDim);
       lastCompareResult = in.compare(minPackedValue, maxPackedValue);
       return lastCompareResult;
     }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/test-framework/src/java/org/apache/lucene/index/BaseIndexFileFormatTestCase.java
----------------------------------------------------------------------
diff --git a/lucene/test-framework/src/java/org/apache/lucene/index/BaseIndexFileFormatTestCase.java b/lucene/test-framework/src/java/org/apache/lucene/index/BaseIndexFileFormatTestCase.java
index 03f01e7..05ed0ff 100644
--- a/lucene/test-framework/src/java/org/apache/lucene/index/BaseIndexFileFormatTestCase.java
+++ b/lucene/test-framework/src/java/org/apache/lucene/index/BaseIndexFileFormatTestCase.java
@@ -325,7 +325,7 @@ abstract class BaseIndexFileFormatTestCase extends LuceneTestCase {
     FieldInfo proto = oneDocReader.getFieldInfos().fieldInfo("field");
     FieldInfo field = new FieldInfo(proto.name, proto.number, proto.hasVectors(), proto.omitsNorms(), proto.hasPayloads(), 
                                     proto.getIndexOptions(), proto.getDocValuesType(), proto.getDocValuesGen(), new HashMap<>(),
-                                    proto.getPointDimensionCount(), proto.getPointNumBytes(), proto.isSoftDeletesField());
+                                    proto.getPointDataDimensionCount(), proto.getPointIndexDimensionCount(), proto.getPointNumBytes(), proto.isSoftDeletesField());
 
     FieldInfos fieldInfos = new FieldInfos(new FieldInfo[] { field } );
 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/test-framework/src/java/org/apache/lucene/index/BasePointsFormatTestCase.java
----------------------------------------------------------------------
diff --git a/lucene/test-framework/src/java/org/apache/lucene/index/BasePointsFormatTestCase.java b/lucene/test-framework/src/java/org/apache/lucene/index/BasePointsFormatTestCase.java
index b2e3e4e..71a9f26 100644
--- a/lucene/test-framework/src/java/org/apache/lucene/index/BasePointsFormatTestCase.java
+++ b/lucene/test-framework/src/java/org/apache/lucene/index/BasePointsFormatTestCase.java
@@ -28,6 +28,7 @@ import org.apache.lucene.codecs.Codec;
 import org.apache.lucene.document.BinaryPoint;
 import org.apache.lucene.document.Document;
 import org.apache.lucene.document.Field;
+import org.apache.lucene.document.FieldType;
 import org.apache.lucene.document.IntPoint;
 import org.apache.lucene.document.NumericDocValuesField;
 import org.apache.lucene.document.StringField;
@@ -520,13 +521,14 @@ public abstract class BasePointsFormatTestCase extends BaseIndexFileFormatTestCa
   private void doTestRandomBinary(int count) throws Exception {
     int numDocs = TestUtil.nextInt(random(), count, count*2);
     int numBytesPerDim = TestUtil.nextInt(random(), 2, PointValues.MAX_NUM_BYTES);
-    int numDims = TestUtil.nextInt(random(), 1, PointValues.MAX_DIMENSIONS);
+    int numDataDims = TestUtil.nextInt(random(), 1, PointValues.MAX_DIMENSIONS);
+    int numIndexDims = TestUtil.nextInt(random(), 1, numDataDims);
 
     byte[][][] docValues = new byte[numDocs][][];
 
     for(int docID=0;docID<numDocs;docID++) {
-      byte[][] values = new byte[numDims][];
-      for(int dim=0;dim<numDims;dim++) {
+      byte[][] values = new byte[numDataDims][];
+      for(int dim=0;dim<numDataDims;dim++) {
         values[dim] = new byte[numBytesPerDim];
         // TODO: sometimes test on a "small" volume too, so we test the high density cases, higher chance of boundary, etc. cases:
         random().nextBytes(values[dim]);
@@ -534,17 +536,22 @@ public abstract class BasePointsFormatTestCase extends BaseIndexFileFormatTestCa
       docValues[docID] = values;
     }
 
-    verify(docValues, null, numDims, numBytesPerDim);
+    verify(docValues, null, numDataDims, numIndexDims, numBytesPerDim);
   }
 
-  /** docIDs can be null, for the single valued case, else it maps value to docID, but all values for one doc must be adjacent */
   private void verify(byte[][][] docValues, int[] docIDs, int numDims, int numBytesPerDim) throws Exception {
+    verify(docValues, docIDs, numDims, numDims, numBytesPerDim);
+  }
+
+  /** docIDs can be null, for the single valued case, else it maps value to docID, but all values for one doc must be adjacent */
+  private void verify(byte[][][] docValues, int[] docIDs, int numDataDims, int numIndexDims, int numBytesPerDim) throws Exception {
     try (Directory dir = getDirectory(docValues.length)) {
       while (true) {
         try {
-          verify(dir, docValues, docIDs, numDims, numBytesPerDim, false);
+          verify(dir, docValues, docIDs, numDataDims, numIndexDims, numBytesPerDim, false);
           return;
         } catch (IllegalArgumentException iae) {
+          iae.printStackTrace();
           // This just means we got a too-small maxMB for the maxPointsInLeafNode; just retry
           assertTrue(iae.getMessage().contains("either increase maxMBSortInHeap or decrease maxPointsInLeafNode"));
         }
@@ -553,9 +560,22 @@ public abstract class BasePointsFormatTestCase extends BaseIndexFileFormatTestCa
   }
 
   private void verify(Directory dir, byte[][][] docValues, int[] ids, int numDims, int numBytesPerDim, boolean expectExceptions) throws Exception {
+    verify(dir, docValues, ids, numDims, numDims, numBytesPerDim, expectExceptions);
+  }
+
+  private byte[] flattenBinaryPoint(byte[][] value, int numDataDims, int numBytesPerDim) {
+    byte[] result = new byte[value.length * numBytesPerDim];
+    for (int d = 0; d < numDataDims; ++d) {
+      System.arraycopy(value[d], 0, result, d * numBytesPerDim, numBytesPerDim);
+    }
+    return result;
+  }
+
+  /** test selective indexing */
+  private void verify(Directory dir, byte[][][] docValues, int[] ids, int numDataDims, int numIndexDims, int numBytesPerDim, boolean expectExceptions) throws Exception {
     int numValues = docValues.length;
     if (VERBOSE) {
-      System.out.println("TEST: numValues=" + numValues + " numDims=" + numDims + " numBytesPerDim=" + numBytesPerDim);
+      System.out.println("TEST: numValues=" + numValues + " numDataDims=" + numDataDims + " numIndexDims=" + numIndexDims + " numBytesPerDim=" + numBytesPerDim);
     }
 
     // RandomIndexWriter is too slow:
@@ -578,10 +598,10 @@ public abstract class BasePointsFormatTestCase extends BaseIndexFileFormatTestCa
     DirectoryReader r = null;
 
     // Compute actual min/max values:
-    byte[][] expectedMinValues = new byte[numDims][];
-    byte[][] expectedMaxValues = new byte[numDims][];
+    byte[][] expectedMinValues = new byte[numDataDims][];
+    byte[][] expectedMaxValues = new byte[numDataDims][];
     for(int ord=0;ord<docValues.length;ord++) {
-      for(int dim=0;dim<numDims;dim++) {
+      for(int dim=0;dim<numDataDims;dim++) {
         if (ord == 0) {
           expectedMinValues[dim] = new byte[numBytesPerDim];
           System.arraycopy(docValues[ord][dim], 0, expectedMinValues[dim], 0, numBytesPerDim);
@@ -629,6 +649,10 @@ public abstract class BasePointsFormatTestCase extends BaseIndexFileFormatTestCa
 
     try {
 
+      FieldType fieldType = new FieldType();
+      fieldType.setDimensions(numDataDims, numIndexDims, numBytesPerDim);
+      fieldType.freeze();
+
       Document doc = null;
       int lastID = -1;
       for(int ord=0;ord<numValues;ord++) {
@@ -649,7 +673,10 @@ public abstract class BasePointsFormatTestCase extends BaseIndexFileFormatTestCa
           doc = new Document();
           doc.add(new NumericDocValuesField("id", id));
         }
-        doc.add(new BinaryPoint("field", docValues[ord]));
+        // pack the binary point
+        byte[] val = flattenBinaryPoint(docValues[ord], numDataDims, numBytesPerDim);
+
+        doc.add(new BinaryPoint("field", val, fieldType));
         lastID = id;
 
         if (random().nextInt(30) == 17) {
@@ -667,7 +694,8 @@ public abstract class BasePointsFormatTestCase extends BaseIndexFileFormatTestCa
         if (random().nextInt(30) == 17) {
           // randomly index some documents with this field, but we will delete them:
           Document xdoc = new Document();
-          xdoc.add(new BinaryPoint("field", docValues[ord]));
+          val = flattenBinaryPoint(docValues[ord], numDataDims, numBytesPerDim);
+          xdoc.add(new BinaryPoint("field", val, fieldType));
           xdoc.add(new StringField("nukeme", "yes", Field.Store.NO));
           if (useRealWriter) {
             w.w.addDocument(xdoc);
@@ -689,7 +717,7 @@ public abstract class BasePointsFormatTestCase extends BaseIndexFileFormatTestCa
 
         if (VERBOSE) {
           System.out.println("  ord=" + ord + " id=" + id);
-          for(int dim=0;dim<numDims;dim++) {
+          for(int dim=0;dim<numDataDims;dim++) {
             System.out.println("    dim=" + dim + " value=" + new BytesRef(docValues[ord][dim]));
           }
         }
@@ -731,10 +759,10 @@ public abstract class BasePointsFormatTestCase extends BaseIndexFileFormatTestCa
       Bits liveDocs = MultiFields.getLiveDocs(r);
 
       // Verify min/max values are correct:
-      byte[] minValues = new byte[numDims*numBytesPerDim];
+      byte[] minValues = new byte[numIndexDims*numBytesPerDim];
       Arrays.fill(minValues, (byte) 0xff);
 
-      byte[] maxValues = new byte[numDims*numBytesPerDim];
+      byte[] maxValues = new byte[numIndexDims*numBytesPerDim];
 
       for(LeafReaderContext ctx : r.leaves()) {
         PointValues dimValues = ctx.reader().getPointValues("field");
@@ -744,7 +772,7 @@ public abstract class BasePointsFormatTestCase extends BaseIndexFileFormatTestCa
 
         byte[] leafMinValues = dimValues.getMinPackedValue();
         byte[] leafMaxValues = dimValues.getMaxPackedValue();
-        for(int dim=0;dim<numDims;dim++) {
+        for(int dim=0;dim<numIndexDims;dim++) {
           if (FutureArrays.compareUnsigned(leafMinValues, dim * numBytesPerDim, dim * numBytesPerDim + numBytesPerDim, minValues, dim * numBytesPerDim, dim * numBytesPerDim + numBytesPerDim) < 0) {
             System.arraycopy(leafMinValues, dim*numBytesPerDim, minValues, dim*numBytesPerDim, numBytesPerDim);
           }
@@ -755,7 +783,7 @@ public abstract class BasePointsFormatTestCase extends BaseIndexFileFormatTestCa
       }
 
       byte[] scratch = new byte[numBytesPerDim];
-      for(int dim=0;dim<numDims;dim++) {
+      for(int dim=0;dim<numIndexDims;dim++) {
         System.arraycopy(minValues, dim*numBytesPerDim, scratch, 0, numBytesPerDim);
         //System.out.println("dim=" + dim + " expectedMin=" + new BytesRef(expectedMinValues[dim]) + " min=" + new BytesRef(scratch));
         assertTrue(Arrays.equals(expectedMinValues[dim], scratch));
@@ -771,9 +799,9 @@ public abstract class BasePointsFormatTestCase extends BaseIndexFileFormatTestCa
         }
 
         // Random N dims rect query:
-        byte[][] queryMin = new byte[numDims][];
-        byte[][] queryMax = new byte[numDims][];    
-        for(int dim=0;dim<numDims;dim++) {    
+        byte[][] queryMin = new byte[numIndexDims][];
+        byte[][] queryMax = new byte[numIndexDims][];
+        for(int dim=0;dim<numIndexDims;dim++) {
           queryMin[dim] = new byte[numBytesPerDim];
           random().nextBytes(queryMin[dim]);
           queryMax[dim] = new byte[numBytesPerDim];
@@ -786,7 +814,7 @@ public abstract class BasePointsFormatTestCase extends BaseIndexFileFormatTestCa
         }
 
         if (VERBOSE) {
-          for(int dim=0;dim<numDims;dim++) {
+          for(int dim=0;dim<numIndexDims;dim++) {
             System.out.println("  dim=" + dim + "\n    queryMin=" + new BytesRef(queryMin[dim]) + "\n    queryMax=" + new BytesRef(queryMax[dim]));
           }
         }
@@ -816,7 +844,7 @@ public abstract class BasePointsFormatTestCase extends BaseIndexFileFormatTestCa
                   return;
                 }
 
-                for(int dim=0;dim<numDims;dim++) {
+                for(int dim=0;dim<numIndexDims;dim++) {
                   //System.out.println("  dim=" + dim + " value=" + new BytesRef(packedValue, dim*numBytesPerDim, numBytesPerDim));
                   if (FutureArrays.compareUnsigned(packedValue, dim * numBytesPerDim, dim * numBytesPerDim + numBytesPerDim, queryMin[dim], 0, numBytesPerDim) < 0 ||
                       FutureArrays.compareUnsigned(packedValue, dim * numBytesPerDim, dim * numBytesPerDim + numBytesPerDim, queryMax[dim], 0, numBytesPerDim) > 0) {
@@ -833,7 +861,7 @@ public abstract class BasePointsFormatTestCase extends BaseIndexFileFormatTestCa
               public Relation compare(byte[] minPacked, byte[] maxPacked) {
                 boolean crosses = false;
                 //System.out.println("compare");
-                for(int dim=0;dim<numDims;dim++) {
+                for(int dim=0;dim<numIndexDims;dim++) {
                   if (FutureArrays.compareUnsigned(maxPacked, dim * numBytesPerDim, dim * numBytesPerDim + numBytesPerDim, queryMin[dim], 0, numBytesPerDim) < 0 ||
                       FutureArrays.compareUnsigned(minPacked, dim * numBytesPerDim, dim * numBytesPerDim + numBytesPerDim, queryMax[dim], 0, numBytesPerDim) > 0) {
                     //System.out.println("  query_outside_cell");
@@ -858,7 +886,7 @@ public abstract class BasePointsFormatTestCase extends BaseIndexFileFormatTestCa
         BitSet expected = new BitSet();
         for(int ord=0;ord<numValues;ord++) {
           boolean matches = true;
-          for(int dim=0;dim<numDims;dim++) {
+          for(int dim=0;dim<numIndexDims;dim++) {
             byte[] x = docValues[ord][dim];
             if (FutureArrays.compareUnsigned(x, 0, numBytesPerDim, queryMin[dim], 0, numBytesPerDim) < 0 ||
                 FutureArrays.compareUnsigned(x, 0, numBytesPerDim, queryMax[dim], 0, numBytesPerDim) > 0) {

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/test-framework/src/java/org/apache/lucene/index/MismatchedLeafReader.java
----------------------------------------------------------------------
diff --git a/lucene/test-framework/src/java/org/apache/lucene/index/MismatchedLeafReader.java b/lucene/test-framework/src/java/org/apache/lucene/index/MismatchedLeafReader.java
index 2c74677..691f19e 100644
--- a/lucene/test-framework/src/java/org/apache/lucene/index/MismatchedLeafReader.java
+++ b/lucene/test-framework/src/java/org/apache/lucene/index/MismatchedLeafReader.java
@@ -76,7 +76,8 @@ public class MismatchedLeafReader extends FilterLeafReader {
                                         oldInfo.getDocValuesType(),  // docValuesType
                                         oldInfo.getDocValuesGen(),   // dvGen
                                         oldInfo.attributes(),        // attributes
-                                        oldInfo.getPointDimensionCount(),      // dimension count
+                                        oldInfo.getPointDataDimensionCount(),      // data dimension count
+                                        oldInfo.getPointIndexDimensionCount(),      // index dimension count
                                         oldInfo.getPointNumBytes(),  // dimension numBytes
                                         oldInfo.isSoftDeletesField()); // used as soft-deletes field
       shuffled.set(i, newInfo);

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/test-framework/src/java/org/apache/lucene/index/RandomCodec.java
----------------------------------------------------------------------
diff --git a/lucene/test-framework/src/java/org/apache/lucene/index/RandomCodec.java b/lucene/test-framework/src/java/org/apache/lucene/index/RandomCodec.java
index 3588a8e..b5a728b 100644
--- a/lucene/test-framework/src/java/org/apache/lucene/index/RandomCodec.java
+++ b/lucene/test-framework/src/java/org/apache/lucene/index/RandomCodec.java
@@ -111,7 +111,8 @@ public class RandomCodec extends AssertingCodec {
             try (BKDWriter writer = new RandomlySplittingBKDWriter(writeState.segmentInfo.maxDoc(),
                                                                    writeState.directory,
                                                                    writeState.segmentInfo.name,
-                                                                   fieldInfo.getPointDimensionCount(),
+                                                                   fieldInfo.getPointDataDimensionCount(),
+                                                                   fieldInfo.getPointIndexDimensionCount(),
                                                                    fieldInfo.getPointNumBytes(),
                                                                    maxPointsInLeafNode,
                                                                    maxMBSortInHeap,
@@ -259,10 +260,10 @@ public class RandomCodec extends AssertingCodec {
 
     final Random random;
 
-    public RandomlySplittingBKDWriter(int maxDoc, Directory tempDir, String tempFileNamePrefix, int numDims,
+    public RandomlySplittingBKDWriter(int maxDoc, Directory tempDir, String tempFileNamePrefix, int numDataDims, int numIndexDims,
                                       int bytesPerDim, int maxPointsInLeafNode, double maxMBSortInHeap,
                                       long totalPointCount, boolean singleValuePerDoc, int randomSeed) throws IOException {
-      super(maxDoc, tempDir, tempFileNamePrefix, numDims, bytesPerDim, maxPointsInLeafNode, maxMBSortInHeap, totalPointCount,
+      super(maxDoc, tempDir, tempFileNamePrefix, numDataDims, numIndexDims, bytesPerDim, maxPointsInLeafNode, maxMBSortInHeap, totalPointCount,
             getRandomSingleValuePerDoc(singleValuePerDoc, randomSeed),
             getRandomLongOrds(totalPointCount, singleValuePerDoc, randomSeed),
             getRandomOfflineSorterBufferMB(randomSeed),
@@ -291,7 +292,7 @@ public class RandomCodec extends AssertingCodec {
     @Override
     protected int split(byte[] minPackedValue, byte[] maxPackedValue, int[] parentDims) {
       // BKD normally defaults by the widest dimension, to try to make as squarish cells as possible, but we just pick a random one ;)
-      return random.nextInt(numDims);
+      return random.nextInt(numIndexDims);
     }
   }
 }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/test-framework/src/java/org/apache/lucene/index/RandomPostingsTester.java
----------------------------------------------------------------------
diff --git a/lucene/test-framework/src/java/org/apache/lucene/index/RandomPostingsTester.java b/lucene/test-framework/src/java/org/apache/lucene/index/RandomPostingsTester.java
index 9f2d9b7..6da2761 100644
--- a/lucene/test-framework/src/java/org/apache/lucene/index/RandomPostingsTester.java
+++ b/lucene/test-framework/src/java/org/apache/lucene/index/RandomPostingsTester.java
@@ -130,7 +130,7 @@ public class RandomPostingsTester {
       fieldInfoArray[fieldUpto] = new FieldInfo(field, fieldUpto, false, false, true,
                                                 IndexOptions.DOCS_AND_FREQS_AND_POSITIONS_AND_OFFSETS,
                                                 DocValuesType.NONE, -1, new HashMap<>(),
-                                                0, 0, false);
+                                                0, 0, 0, false);
       fieldUpto++;
 
       SortedMap<BytesRef,SeedAndOrd> postings = new TreeMap<>();
@@ -651,7 +651,7 @@ public class RandomPostingsTester {
                                                    DocValuesType.NONE,
                                                    -1,
                                                    new HashMap<>(),
-                                                   0, 0, false);
+                                                   0, 0, 0, false);
     }
 
     FieldInfos newFieldInfos = new FieldInfos(newFieldInfoArray);

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/test-framework/src/java/org/apache/lucene/util/LuceneTestCase.java
----------------------------------------------------------------------
diff --git a/lucene/test-framework/src/java/org/apache/lucene/util/LuceneTestCase.java b/lucene/test-framework/src/java/org/apache/lucene/util/LuceneTestCase.java
index 68e7190..95150fb 100644
--- a/lucene/test-framework/src/java/org/apache/lucene/util/LuceneTestCase.java
+++ b/lucene/test-framework/src/java/org/apache/lucene/util/LuceneTestCase.java
@@ -2627,10 +2627,12 @@ public abstract class LuceneTestCase extends Assert {
     FieldInfos fieldInfos1 = MultiFields.getMergedFieldInfos(leftReader);
     FieldInfos fieldInfos2 = MultiFields.getMergedFieldInfos(rightReader);
     for(FieldInfo fieldInfo1 : fieldInfos1) {
-      if (fieldInfo1.getPointDimensionCount() != 0) {
+      if (fieldInfo1.getPointDataDimensionCount() != 0) {
         FieldInfo fieldInfo2 = fieldInfos2.fieldInfo(fieldInfo1.name);
-        // same dimension count?
-        assertEquals(info, fieldInfo2.getPointDimensionCount(), fieldInfo2.getPointDimensionCount());
+        // same data dimension count?
+        assertEquals(info, fieldInfo2.getPointDataDimensionCount(), fieldInfo2.getPointDataDimensionCount());
+        // same index dimension count?
+        assertEquals(info, fieldInfo2.getPointIndexDimensionCount(), fieldInfo2.getPointIndexDimensionCount());
         // same bytes per dimension?
         assertEquals(info, fieldInfo2.getPointNumBytes(), fieldInfo2.getPointNumBytes());
 
@@ -2642,10 +2644,12 @@ public abstract class LuceneTestCase extends Assert {
 
     // make sure FieldInfos2 doesn't have any point fields that FieldInfo1 didn't have
     for(FieldInfo fieldInfo2 : fieldInfos2) {
-      if (fieldInfo2.getPointDimensionCount() != 0) {
+      if (fieldInfo2.getPointDataDimensionCount() != 0) {
         FieldInfo fieldInfo1 = fieldInfos1.fieldInfo(fieldInfo2.name);
-        // same dimension count?
-        assertEquals(info, fieldInfo2.getPointDimensionCount(), fieldInfo1.getPointDimensionCount());
+        // same data dimension count?
+        assertEquals(info, fieldInfo2.getPointDataDimensionCount(), fieldInfo1.getPointDataDimensionCount());
+        // same index dimension count?
+        assertEquals(info, fieldInfo2.getPointIndexDimensionCount(), fieldInfo1.getPointIndexDimensionCount());
         // same bytes per dimension?
         assertEquals(info, fieldInfo2.getPointNumBytes(), fieldInfo1.getPointNumBytes());
 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/test-framework/src/java/org/apache/lucene/util/TestUtil.java
----------------------------------------------------------------------
diff --git a/lucene/test-framework/src/java/org/apache/lucene/util/TestUtil.java b/lucene/test-framework/src/java/org/apache/lucene/util/TestUtil.java
index 65329b5..1aa0300 100644
--- a/lucene/test-framework/src/java/org/apache/lucene/util/TestUtil.java
+++ b/lucene/test-framework/src/java/org/apache/lucene/util/TestUtil.java
@@ -1082,7 +1082,7 @@ public final class TestUtil {
       final Field field1 = (Field) f;
       final Field field2;
       final DocValuesType dvType = field1.fieldType().docValuesType();
-      final int dimCount = field1.fieldType().pointDimensionCount();
+      final int dimCount = field1.fieldType().pointDataDimensionCount();
       if (dvType != DocValuesType.NONE) {
         switch(dvType) {
           case NUMERIC:

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/solr/core/src/java/org/apache/solr/handler/component/ExpandComponent.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/handler/component/ExpandComponent.java b/solr/core/src/java/org/apache/solr/handler/component/ExpandComponent.java
index e79161d..2cbe703 100644
--- a/solr/core/src/java/org/apache/solr/handler/component/ExpandComponent.java
+++ b/solr/core/src/java/org/apache/solr/handler/component/ExpandComponent.java
@@ -795,7 +795,8 @@ public class ExpandComponent extends SearchComponent implements PluginInfoInitia
               DocValuesType.NONE,
               fieldInfo.getDocValuesGen(),
               fieldInfo.attributes(),
-              fieldInfo.getPointDimensionCount(),
+              fieldInfo.getPointDataDimensionCount(),
+              fieldInfo.getPointIndexDimensionCount(),
               fieldInfo.getPointNumBytes(),
               fieldInfo.isSoftDeletesField());
           newInfos.add(f);

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/solr/core/src/java/org/apache/solr/legacy/BBoxStrategy.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/legacy/BBoxStrategy.java b/solr/core/src/java/org/apache/solr/legacy/BBoxStrategy.java
index 84f90ef..b2f239e 100644
--- a/solr/core/src/java/org/apache/solr/legacy/BBoxStrategy.java
+++ b/solr/core/src/java/org/apache/solr/legacy/BBoxStrategy.java
@@ -173,7 +173,7 @@ public class BBoxStrategy extends SpatialStrategy {
     if ((this.hasDocVals = fieldType.docValuesType() != DocValuesType.NONE)) {
       numQuads++;
     }
-    if ((this.hasPointVals = fieldType.pointDimensionCount() > 0)) {
+    if ((this.hasPointVals = fieldType.pointDataDimensionCount() > 0)) {
       numQuads++;
     }
     if (fieldType.indexOptions() != IndexOptions.NONE && fieldType instanceof LegacyFieldType && ((LegacyFieldType)fieldType).numericType() != null) {

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/solr/core/src/java/org/apache/solr/legacy/PointVectorStrategy.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/legacy/PointVectorStrategy.java b/solr/core/src/java/org/apache/solr/legacy/PointVectorStrategy.java
index da48fcb..4df76ca 100644
--- a/solr/core/src/java/org/apache/solr/legacy/PointVectorStrategy.java
+++ b/solr/core/src/java/org/apache/solr/legacy/PointVectorStrategy.java
@@ -152,7 +152,7 @@ public class PointVectorStrategy extends SpatialStrategy {
     if ((this.hasDocVals = fieldType.docValuesType() != DocValuesType.NONE)) {
       numPairs++;
     }
-    if ((this.hasPointVals = fieldType.pointDimensionCount() > 0)) {
+    if ((this.hasPointVals = fieldType.pointDataDimensionCount() > 0)) {
       numPairs++;
     }
     if (fieldType.indexOptions() != IndexOptions.NONE && fieldType instanceof LegacyFieldType && ((LegacyFieldType)fieldType).numericType() != null) {

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/solr/core/src/java/org/apache/solr/schema/SchemaField.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/schema/SchemaField.java b/solr/core/src/java/org/apache/solr/schema/SchemaField.java
index 256cbae..e28629e 100644
--- a/solr/core/src/java/org/apache/solr/schema/SchemaField.java
+++ b/solr/core/src/java/org/apache/solr/schema/SchemaField.java
@@ -415,7 +415,12 @@ public final class SchemaField extends FieldProperties implements IndexableField
   }
 
   @Override
-  public int pointDimensionCount() {
+  public int pointDataDimensionCount() {
+    return 0;
+  }
+
+  @Override
+  public int pointIndexDimensionCount() {
     return 0;
   }
 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/solr/core/src/java/org/apache/solr/search/CollapsingQParserPlugin.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/search/CollapsingQParserPlugin.java b/solr/core/src/java/org/apache/solr/search/CollapsingQParserPlugin.java
index 8875afc..57d3d43 100644
--- a/solr/core/src/java/org/apache/solr/search/CollapsingQParserPlugin.java
+++ b/solr/core/src/java/org/apache/solr/search/CollapsingQParserPlugin.java
@@ -431,7 +431,7 @@ public class CollapsingQParserPlugin extends QParserPlugin {
                                       DocValuesType.NONE,
                                       fieldInfo.getDocValuesGen(),
                                       fieldInfo.attributes(),
-                                      0, 0, fieldInfo.isSoftDeletesField());
+                                      0, 0, 0, fieldInfo.isSoftDeletesField());
           newInfos.add(f);
 
         } else {

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/solr/core/src/java/org/apache/solr/search/Insanity.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/search/Insanity.java b/solr/core/src/java/org/apache/solr/search/Insanity.java
index 67d1320..7da7a5c 100644
--- a/solr/core/src/java/org/apache/solr/search/Insanity.java
+++ b/solr/core/src/java/org/apache/solr/search/Insanity.java
@@ -67,7 +67,7 @@ public class Insanity {
         if (fi.name.equals(insaneField)) {
           filteredInfos.add(new FieldInfo(fi.name, fi.number, fi.hasVectors(), fi.omitsNorms(),
                                           fi.hasPayloads(), fi.getIndexOptions(), DocValuesType.NONE, -1, Collections.emptyMap(),
-                                          fi.getPointDimensionCount(), fi.getPointNumBytes(), fi.isSoftDeletesField()));
+                                          fi.getPointDataDimensionCount(), fi.getPointIndexDimensionCount(), fi.getPointNumBytes(), fi.isSoftDeletesField()));
         } else {
           filteredInfos.add(fi);
         }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/solr/core/src/java/org/apache/solr/uninverting/FieldCacheImpl.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/uninverting/FieldCacheImpl.java b/solr/core/src/java/org/apache/solr/uninverting/FieldCacheImpl.java
index e6e8fda..42c34ab 100644
--- a/solr/core/src/java/org/apache/solr/uninverting/FieldCacheImpl.java
+++ b/solr/core/src/java/org/apache/solr/uninverting/FieldCacheImpl.java
@@ -592,11 +592,11 @@ public class FieldCacheImpl implements FieldCache {
       if (parser instanceof PointParser) {
         // points case
         // no points in this segment
-        if (info.getPointDimensionCount() == 0) {
+        if (info.getPointDataDimensionCount() == 0) {
           return DocValues.emptyNumeric();
         }
-        if (info.getPointDimensionCount() != 1) {
-          throw new IllegalStateException("Type mismatch: " + field + " was indexed with dimensions=" + info.getPointDimensionCount());
+        if (info.getPointDataDimensionCount() != 1) {
+          throw new IllegalStateException("Type mismatch: " + field + " was indexed with dimensions=" + info.getPointDataDimensionCount());
         }
         PointValues values = reader.getPointValues(field);
         // no actual points for this field (e.g. all points deleted)

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/solr/core/src/java/org/apache/solr/uninverting/UninvertingReader.java
----------------------------------------------------------------------
diff --git a/solr/core/src/java/org/apache/solr/uninverting/UninvertingReader.java b/solr/core/src/java/org/apache/solr/uninverting/UninvertingReader.java
index 176795d..e804635 100644
--- a/solr/core/src/java/org/apache/solr/uninverting/UninvertingReader.java
+++ b/solr/core/src/java/org/apache/solr/uninverting/UninvertingReader.java
@@ -237,12 +237,12 @@ public class UninvertingReader extends FilterLeafReader {
       DocValuesType type = fi.getDocValuesType();
       // fields which currently don't have docValues, but are uninvertable (indexed or points data present)
       if (type == DocValuesType.NONE &&
-          (fi.getIndexOptions() != IndexOptions.NONE || (fi.getPointNumBytes() > 0 && fi.getPointDimensionCount() == 1))) {
+          (fi.getIndexOptions() != IndexOptions.NONE || (fi.getPointNumBytes() > 0 && fi.getPointDataDimensionCount() == 1))) {
         Type t = mapping.apply(fi.name); // could definitely return null, thus still can't uninvert it
         if (t != null) {
           if (t == Type.INTEGER_POINT || t == Type.LONG_POINT || t == Type.FLOAT_POINT || t == Type.DOUBLE_POINT) {
             // type uses points
-            if (fi.getPointDimensionCount() == 0) {
+            if (fi.getPointDataDimensionCount() == 0) {
               continue;
             }
           } else {
@@ -284,7 +284,7 @@ public class UninvertingReader extends FilterLeafReader {
         wrap = true;
         newFieldInfos.add(new FieldInfo(fi.name, fi.number, fi.hasVectors(), fi.omitsNorms(),
             fi.hasPayloads(), fi.getIndexOptions(), type, fi.getDocValuesGen(), fi.attributes(),
-            fi.getPointDimensionCount(), fi.getPointNumBytes(), fi.isSoftDeletesField()));
+            fi.getPointDataDimensionCount(), fi.getPointIndexDimensionCount(), fi.getPointNumBytes(), fi.isSoftDeletesField()));
       } else {
         newFieldInfos.add(fi);
       }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/solr/core/src/test/org/apache/solr/uninverting/TestUninvertingReader.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/uninverting/TestUninvertingReader.java b/solr/core/src/test/org/apache/solr/uninverting/TestUninvertingReader.java
index 9ec1234..05a1254 100644
--- a/solr/core/src/test/org/apache/solr/uninverting/TestUninvertingReader.java
+++ b/solr/core/src/test/org/apache/solr/uninverting/TestUninvertingReader.java
@@ -379,12 +379,14 @@ public class TestUninvertingReader extends LuceneTestCase {
 
     FieldInfo intFInfo = fieldInfos.fieldInfo("int");
     assertEquals(DocValuesType.NUMERIC, intFInfo.getDocValuesType());
-    assertEquals(0, intFInfo.getPointDimensionCount());
+    assertEquals(0, intFInfo.getPointDataDimensionCount());
+    assertEquals(0, intFInfo.getPointIndexDimensionCount());
     assertEquals(0, intFInfo.getPointNumBytes());
 
     FieldInfo dintFInfo = fieldInfos.fieldInfo("dint");
     assertEquals(DocValuesType.NUMERIC, dintFInfo.getDocValuesType());
-    assertEquals(1, dintFInfo.getPointDimensionCount());
+    assertEquals(1, dintFInfo.getPointDataDimensionCount());
+    assertEquals(1, dintFInfo.getPointIndexDimensionCount());
     assertEquals(4, dintFInfo.getPointNumBytes());
 
     FieldInfo dvFInfo = fieldInfos.fieldInfo("dv");


[3/4] lucene-solr:master: LUCENE-8496: Selective indexing - modify BKDReader/BKDWriter to allow users to select a fewer number of dimensions to be used for creating the index than the total number of dimensions used for field encoding. i.e., dimensions 0

Posted by nk...@apache.org.
http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/document/RangeFieldQuery.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/document/RangeFieldQuery.java b/lucene/core/src/java/org/apache/lucene/document/RangeFieldQuery.java
index 773878a..f623701 100644
--- a/lucene/core/src/java/org/apache/lucene/document/RangeFieldQuery.java
+++ b/lucene/core/src/java/org/apache/lucene/document/RangeFieldQuery.java
@@ -255,9 +255,9 @@ abstract class RangeFieldQuery extends Query {
 
   /** Check indexed field info against the provided query data. */
   private void checkFieldInfo(FieldInfo fieldInfo) {
-    if (fieldInfo.getPointDimensionCount()/2 != numDims) {
+    if (fieldInfo.getPointDataDimensionCount()/2 != numDims) {
       throw new IllegalArgumentException("field=\"" + field + "\" was indexed with numDims="
-          + fieldInfo.getPointDimensionCount()/2 + " but this query has numDims=" + numDims);
+          + fieldInfo.getPointDataDimensionCount()/2 + " but this query has numDims=" + numDims);
     }
   }
 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/index/CheckIndex.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/index/CheckIndex.java b/lucene/core/src/java/org/apache/lucene/index/CheckIndex.java
index aa01723..aa799f2 100644
--- a/lucene/core/src/java/org/apache/lucene/index/CheckIndex.java
+++ b/lucene/core/src/java/org/apache/lucene/index/CheckIndex.java
@@ -1900,7 +1900,7 @@ public final class CheckIndex implements Closeable {
           throw new RuntimeException("there are fields with points, but reader.getPointsReader() is null");
         }
         for (FieldInfo fieldInfo : fieldInfos) {
-          if (fieldInfo.getPointDimensionCount() > 0) {
+          if (fieldInfo.getPointDataDimensionCount() > 0) {
             PointValues values = pointsReader.getValues(fieldInfo.name);
             if (values == null) {
               continue;
@@ -1970,7 +1970,9 @@ public final class CheckIndex implements Closeable {
     private final byte[] globalMinPackedValue;
     private final byte[] globalMaxPackedValue;
     private final int packedBytesCount;
-    private final int numDims;
+    private final int packedIndexBytesCount;
+    private final int numDataDims;
+    private final int numIndexDims;
     private final int bytesPerDim;
     private final String fieldName;
 
@@ -1978,14 +1980,16 @@ public final class CheckIndex implements Closeable {
     public VerifyPointsVisitor(String fieldName, int maxDoc, PointValues values) throws IOException {
       this.maxDoc = maxDoc;
       this.fieldName = fieldName;
-      numDims = values.getNumDimensions();
+      numDataDims = values.getNumDataDimensions();
+      numIndexDims = values.getNumIndexDimensions();
       bytesPerDim = values.getBytesPerDimension();
-      packedBytesCount = numDims * bytesPerDim;
+      packedBytesCount = numDataDims * bytesPerDim;
+      packedIndexBytesCount = numIndexDims * bytesPerDim;
       globalMinPackedValue = values.getMinPackedValue();
       globalMaxPackedValue = values.getMaxPackedValue();
       docsSeen = new FixedBitSet(maxDoc);
-      lastMinPackedValue = new byte[packedBytesCount];
-      lastMaxPackedValue = new byte[packedBytesCount];
+      lastMinPackedValue = new byte[packedIndexBytesCount];
+      lastMaxPackedValue = new byte[packedIndexBytesCount];
       lastPackedValue = new byte[packedBytesCount];
 
       if (values.getDocCount() > values.size()) {
@@ -2000,14 +2004,14 @@ public final class CheckIndex implements Closeable {
         if (values.size() != 0) {
           throw new RuntimeException("getMinPackedValue is null points for field \"" + fieldName + "\" yet size=" + values.size());
         }
-      } else if (globalMinPackedValue.length != packedBytesCount) {
+      } else if (globalMinPackedValue.length != packedIndexBytesCount) {
         throw new RuntimeException("getMinPackedValue for field \"" + fieldName + "\" return length=" + globalMinPackedValue.length + " array, but should be " + packedBytesCount);
       }
       if (globalMaxPackedValue == null) {
         if (values.size() != 0) {
           throw new RuntimeException("getMaxPackedValue is null points for field \"" + fieldName + "\" yet size=" + values.size());
         }
-      } else if (globalMaxPackedValue.length != packedBytesCount) {
+      } else if (globalMaxPackedValue.length != packedIndexBytesCount) {
         throw new RuntimeException("getMaxPackedValue for field \"" + fieldName + "\" return length=" + globalMaxPackedValue.length + " array, but should be " + packedBytesCount);
       }
     }
@@ -2033,7 +2037,7 @@ public final class CheckIndex implements Closeable {
       pointCountSeen++;
       docsSeen.set(docID);
 
-      for(int dim=0;dim<numDims;dim++) {
+      for(int dim=0;dim<numIndexDims;dim++) {
         int offset = bytesPerDim * dim;
 
         // Compare to last cell:
@@ -2048,9 +2052,10 @@ public final class CheckIndex implements Closeable {
         }
       }
 
-      // In the 1D case, PointValues must make a single in-order sweep through all values, and tie-break by
+      // In the 1D data case, PointValues must make a single in-order sweep through all values, and tie-break by
       // increasing docID:
-      if (numDims == 1) {
+      // for data dimension > 1, leaves are sorted by the dimension with the lowest cardinality to improve block compression
+      if (numDataDims == 1) {
         int cmp = FutureArrays.compareUnsigned(lastPackedValue, 0, bytesPerDim, packedValue, 0, bytesPerDim);
         if (cmp > 0) {
           throw new RuntimeException("packed points value " + Arrays.toString(packedValue) + " for field=\"" + fieldName + "\", for docID=" + docID + " is out-of-order vs the previous document's value " + Arrays.toString(lastPackedValue));
@@ -2067,11 +2072,11 @@ public final class CheckIndex implements Closeable {
     @Override
     public PointValues.Relation compare(byte[] minPackedValue, byte[] maxPackedValue) {
       checkPackedValue("min packed value", minPackedValue, -1);
-      System.arraycopy(minPackedValue, 0, lastMinPackedValue, 0, packedBytesCount);
+      System.arraycopy(minPackedValue, 0, lastMinPackedValue, 0, packedIndexBytesCount);
       checkPackedValue("max packed value", maxPackedValue, -1);
-      System.arraycopy(maxPackedValue, 0, lastMaxPackedValue, 0, packedBytesCount);
+      System.arraycopy(maxPackedValue, 0, lastMaxPackedValue, 0, packedIndexBytesCount);
 
-      for(int dim=0;dim<numDims;dim++) {
+      for(int dim=0;dim<numIndexDims;dim++) {
         int offset = bytesPerDim * dim;
 
         if (FutureArrays.compareUnsigned(minPackedValue, offset, offset + bytesPerDim, maxPackedValue, offset, offset + bytesPerDim) > 0) {
@@ -2110,8 +2115,8 @@ public final class CheckIndex implements Closeable {
         throw new RuntimeException(desc + " is null for docID=" + docID + " field=\"" + fieldName + "\"");
       }
 
-      if (packedValue.length != packedBytesCount) {
-        throw new RuntimeException(desc + " has incorrect length=" + packedValue.length + " vs expected=" + packedBytesCount + " for docID=" + docID + " field=\"" + fieldName + "\"");
+      if (packedValue.length != (docID < 0 ? packedIndexBytesCount : packedBytesCount)) {
+        throw new RuntimeException(desc + " has incorrect length=" + packedValue.length + " vs expected=" + packedIndexBytesCount + " for docID=" + docID + " field=\"" + fieldName + "\"");
       }
     }
   }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/index/CodecReader.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/index/CodecReader.java b/lucene/core/src/java/org/apache/lucene/index/CodecReader.java
index 50aaa42..ca6ac7d 100644
--- a/lucene/core/src/java/org/apache/lucene/index/CodecReader.java
+++ b/lucene/core/src/java/org/apache/lucene/index/CodecReader.java
@@ -194,7 +194,7 @@ public abstract class CodecReader extends LeafReader implements Accountable {
   public final PointValues getPointValues(String field) throws IOException {
     ensureOpen();
     FieldInfo fi = getFieldInfos().fieldInfo(field);
-    if (fi == null || fi.getPointDimensionCount() == 0) {
+    if (fi == null || fi.getPointDataDimensionCount() == 0) {
       // Field does not exist or does not index points
       return null;
     }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/index/DefaultIndexingChain.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/index/DefaultIndexingChain.java b/lucene/core/src/java/org/apache/lucene/index/DefaultIndexingChain.java
index d0a6974..4cc981d 100644
--- a/lucene/core/src/java/org/apache/lucene/index/DefaultIndexingChain.java
+++ b/lucene/core/src/java/org/apache/lucene/index/DefaultIndexingChain.java
@@ -201,7 +201,7 @@ final class DefaultIndexingChain extends DocConsumer {
         PerField perField = fieldHash[i];
         while (perField != null) {
           if (perField.pointValuesWriter != null) {
-            if (perField.fieldInfo.getPointDimensionCount() == 0) {
+            if (perField.fieldInfo.getPointDataDimensionCount() == 0) {
               // BUG
               throw new AssertionError("segment=" + state.segmentInfo + ": field=\"" + perField.fieldInfo.name + "\" has no points but wrote them");
             }
@@ -216,7 +216,7 @@ final class DefaultIndexingChain extends DocConsumer {
 
             perField.pointValuesWriter.flush(state, sortMap, pointsWriter);
             perField.pointValuesWriter = null;
-          } else if (perField.fieldInfo.getPointDimensionCount() != 0) {
+          } else if (perField.fieldInfo.getPointDataDimensionCount() != 0) {
             // BUG
             throw new AssertionError("segment=" + state.segmentInfo + ": field=\"" + perField.fieldInfo.name + "\" has points but did not write them");
           }
@@ -477,7 +477,7 @@ final class DefaultIndexingChain extends DocConsumer {
       }
       indexDocValue(fp, dvType, field);
     }
-    if (fieldType.pointDimensionCount() != 0) {
+    if (fieldType.pointDataDimensionCount() != 0) {
       if (fp == null) {
         fp = getOrAddField(fieldName, fieldType, false);
       }
@@ -508,17 +508,18 @@ final class DefaultIndexingChain extends DocConsumer {
 
   /** Called from processDocument to index one field's point */
   private void indexPoint(PerField fp, IndexableField field) throws IOException {
-    int pointDimensionCount = field.fieldType().pointDimensionCount();
+    int pointDataDimensionCount = field.fieldType().pointDataDimensionCount();
+    int pointIndexDimensionCount = field.fieldType().pointIndexDimensionCount();
 
     int dimensionNumBytes = field.fieldType().pointNumBytes();
 
     // Record dimensions for this field; this setter will throw IllegalArgExc if
     // the dimensions were already set to something different:
-    if (fp.fieldInfo.getPointDimensionCount() == 0) {
-      fieldInfos.globalFieldNumbers.setDimensions(fp.fieldInfo.number, fp.fieldInfo.name, pointDimensionCount, dimensionNumBytes);
+    if (fp.fieldInfo.getPointDataDimensionCount() == 0) {
+      fieldInfos.globalFieldNumbers.setDimensions(fp.fieldInfo.number, fp.fieldInfo.name, pointDataDimensionCount, pointIndexDimensionCount, dimensionNumBytes);
     }
 
-    fp.fieldInfo.setPointDimensions(pointDimensionCount, dimensionNumBytes);
+    fp.fieldInfo.setPointDimensions(pointDataDimensionCount, pointIndexDimensionCount, dimensionNumBytes);
 
     if (fp.pointValuesWriter == null) {
       fp.pointValuesWriter = new PointValuesWriter(docWriter, fp.fieldInfo);

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/index/FieldInfo.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/index/FieldInfo.java b/lucene/core/src/java/org/apache/lucene/index/FieldInfo.java
index b50cb12..c5d85bc 100644
--- a/lucene/core/src/java/org/apache/lucene/index/FieldInfo.java
+++ b/lucene/core/src/java/org/apache/lucene/index/FieldInfo.java
@@ -50,7 +50,8 @@ public final class FieldInfo {
 
   /** If both of these are positive it means this field indexed points
    *  (see {@link org.apache.lucene.codecs.PointsFormat}). */
-  private int pointDimensionCount;
+  private int pointDataDimensionCount;
+  private int pointIndexDimensionCount;
   private int pointNumBytes;
 
   // whether this field is used as the soft-deletes field
@@ -63,7 +64,7 @@ public final class FieldInfo {
    */
   public FieldInfo(String name, int number, boolean storeTermVector, boolean omitNorms, boolean storePayloads,
                    IndexOptions indexOptions, DocValuesType docValues, long dvGen, Map<String,String> attributes,
-                   int pointDimensionCount, int pointNumBytes, boolean softDeletesField) {
+                   int pointDataDimensionCount, int pointIndexDimensionCount, int pointNumBytes, boolean softDeletesField) {
     this.name = Objects.requireNonNull(name);
     this.number = number;
     this.docValuesType = Objects.requireNonNull(docValues, "DocValuesType must not be null (field: \"" + name + "\")");
@@ -79,7 +80,8 @@ public final class FieldInfo {
     }
     this.dvGen = dvGen;
     this.attributes = Objects.requireNonNull(attributes);
-    this.pointDimensionCount = pointDimensionCount;
+    this.pointDataDimensionCount = pointDataDimensionCount;
+    this.pointIndexDimensionCount = pointIndexDimensionCount;
     this.pointNumBytes = pointNumBytes;
     this.softDeletesField = softDeletesField;
     assert checkConsistency();
@@ -107,20 +109,28 @@ public final class FieldInfo {
       }
     }
 
-    if (pointDimensionCount < 0) {
-      throw new IllegalStateException("pointDimensionCount must be >= 0; got " + pointDimensionCount);
+    if (pointDataDimensionCount < 0) {
+      throw new IllegalStateException("pointDataDimensionCount must be >= 0; got " + pointDataDimensionCount);
+    }
+
+    if (pointIndexDimensionCount < 0) {
+      throw new IllegalStateException("pointIndexDimensionCount must be >= 0; got " + pointIndexDimensionCount);
     }
 
     if (pointNumBytes < 0) {
       throw new IllegalStateException("pointNumBytes must be >= 0; got " + pointNumBytes);
     }
 
-    if (pointDimensionCount != 0 && pointNumBytes == 0) {
-      throw new IllegalStateException("pointNumBytes must be > 0 when pointDimensionCount=" + pointDimensionCount);
+    if (pointDataDimensionCount != 0 && pointNumBytes == 0) {
+      throw new IllegalStateException("pointNumBytes must be > 0 when pointDataDimensionCount=" + pointDataDimensionCount);
+    }
+
+    if (pointIndexDimensionCount != 0 && pointDataDimensionCount == 0) {
+      throw new IllegalStateException("pointIndexDimensionCount must be 0 when pointDataDimensionCount=0");
     }
 
-    if (pointNumBytes != 0 && pointDimensionCount == 0) {
-      throw new IllegalStateException("pointDimensionCount must be > 0 when pointNumBytes=" + pointNumBytes);
+    if (pointNumBytes != 0 && pointDataDimensionCount == 0) {
+      throw new IllegalStateException("pointDataDimensionCount must be > 0 when pointNumBytes=" + pointNumBytes);
     }
     
     if (dvGen != -1 && docValuesType == DocValuesType.NONE) {
@@ -132,7 +142,7 @@ public final class FieldInfo {
 
   // should only be called by FieldInfos#addOrUpdate
   void update(boolean storeTermVector, boolean omitNorms, boolean storePayloads, IndexOptions indexOptions,
-              int dimensionCount, int dimensionNumBytes) {
+              int dataDimensionCount, int indexDimensionCount, int dimensionNumBytes) {
     if (indexOptions == null) {
       throw new NullPointerException("IndexOptions must not be null (field: \"" + name + "\")");
     }
@@ -145,11 +155,12 @@ public final class FieldInfo {
       }
     }
 
-    if (this.pointDimensionCount == 0 && dimensionCount != 0) {
-      this.pointDimensionCount = dimensionCount;
+    if (this.pointDataDimensionCount == 0 && dataDimensionCount != 0) {
+      this.pointDataDimensionCount = dataDimensionCount;
+      this.pointIndexDimensionCount = indexDimensionCount;
       this.pointNumBytes = dimensionNumBytes;
-    } else if (dimensionCount != 0 && (this.pointDimensionCount != dimensionCount || this.pointNumBytes != dimensionNumBytes)) {
-      throw new IllegalArgumentException("cannot change field \"" + name + "\" from points dimensionCount=" + this.pointDimensionCount + ", numBytes=" + this.pointNumBytes + " to inconsistent dimensionCount=" + dimensionCount + ", numBytes=" + dimensionNumBytes);
+    } else if (dataDimensionCount != 0 && (this.pointDataDimensionCount != dataDimensionCount || this.pointIndexDimensionCount != indexDimensionCount || this.pointNumBytes != dimensionNumBytes)) {
+      throw new IllegalArgumentException("cannot change field \"" + name + "\" from points dataDimensionCount=" + this.pointDataDimensionCount + ", indexDimensionCount=" + this.pointIndexDimensionCount + ", numBytes=" + this.pointNumBytes + " to inconsistent dataDimensionCount=" + dataDimensionCount +", indexDimensionCount=" + indexDimensionCount + ", numBytes=" + dimensionNumBytes);
     }
 
     if (this.indexOptions != IndexOptions.NONE) { // if updated field data is not for indexing, leave the updates out
@@ -170,12 +181,15 @@ public final class FieldInfo {
 
   /** Record that this field is indexed with points, with the
    *  specified number of dimensions and bytes per dimension. */
-  public void setPointDimensions(int count, int numBytes) {
-    if (count <= 0) {
-      throw new IllegalArgumentException("point dimension count must be >= 0; got " + count + " for field=\"" + name + "\"");
+  public void setPointDimensions(int dataDimensionCount, int indexDimensionCount, int numBytes) {
+    if (dataDimensionCount <= 0) {
+      throw new IllegalArgumentException("point data dimension count must be >= 0; got " + dataDimensionCount + " for field=\"" + name + "\"");
     }
-    if (count > PointValues.MAX_DIMENSIONS) {
-      throw new IllegalArgumentException("point dimension count must be < PointValues.MAX_DIMENSIONS (= " + PointValues.MAX_DIMENSIONS + "); got " + count + " for field=\"" + name + "\"");
+    if (dataDimensionCount > PointValues.MAX_DIMENSIONS) {
+      throw new IllegalArgumentException("point data dimension count must be < PointValues.MAX_DIMENSIONS (= " + PointValues.MAX_DIMENSIONS + "); got " + dataDimensionCount + " for field=\"" + name + "\"");
+    }
+    if (indexDimensionCount > dataDimensionCount) {
+      throw new IllegalArgumentException("point index dimension count must be <= point data dimension count (= " + dataDimensionCount + "); got " + indexDimensionCount + " for field=\"" + name + "\"");
     }
     if (numBytes <= 0) {
       throw new IllegalArgumentException("point numBytes must be >= 0; got " + numBytes + " for field=\"" + name + "\"");
@@ -183,22 +197,31 @@ public final class FieldInfo {
     if (numBytes > PointValues.MAX_NUM_BYTES) {
       throw new IllegalArgumentException("point numBytes must be <= PointValues.MAX_NUM_BYTES (= " + PointValues.MAX_NUM_BYTES + "); got " + numBytes + " for field=\"" + name + "\"");
     }
-    if (pointDimensionCount != 0 && pointDimensionCount != count) {
-      throw new IllegalArgumentException("cannot change point dimension count from " + pointDimensionCount + " to " + count + " for field=\"" + name + "\"");
+    if (pointDataDimensionCount != 0 && pointDataDimensionCount != dataDimensionCount) {
+      throw new IllegalArgumentException("cannot change point data dimension count from " + pointDataDimensionCount + " to " + dataDimensionCount + " for field=\"" + name + "\"");
+    }
+    if (pointIndexDimensionCount != 0 && pointIndexDimensionCount != indexDimensionCount) {
+      throw new IllegalArgumentException("cannot change point index dimension count from " + pointIndexDimensionCount + " to " + indexDimensionCount + " for field=\"" + name + "\"");
     }
     if (pointNumBytes != 0 && pointNumBytes != numBytes) {
       throw new IllegalArgumentException("cannot change point numBytes from " + pointNumBytes + " to " + numBytes + " for field=\"" + name + "\"");
     }
 
-    pointDimensionCount = count;
+    pointDataDimensionCount = dataDimensionCount;
+    pointIndexDimensionCount = indexDimensionCount;
     pointNumBytes = numBytes;
 
     assert checkConsistency();
   }
 
-  /** Return point dimension count */
-  public int getPointDimensionCount() {
-    return pointDimensionCount;
+  /** Return point data dimension count */
+  public int getPointDataDimensionCount() {
+    return pointDataDimensionCount;
+  }
+
+  /** Return point data dimension count */
+  public int getPointIndexDimensionCount() {
+    return pointIndexDimensionCount;
   }
 
   /** Return number of bytes per dimension */

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/index/FieldInfos.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/index/FieldInfos.java b/lucene/core/src/java/org/apache/lucene/index/FieldInfos.java
index 0a0ff5e..1e0ef94 100644
--- a/lucene/core/src/java/org/apache/lucene/index/FieldInfos.java
+++ b/lucene/core/src/java/org/apache/lucene/index/FieldInfos.java
@@ -93,7 +93,7 @@ public class FieldInfos implements Iterable<FieldInfo> {
       hasNorms |= info.hasNorms();
       hasDocValues |= info.getDocValuesType() != DocValuesType.NONE;
       hasPayloads |= info.hasPayloads();
-      hasPointValues |= (info.getPointDimensionCount() != 0);
+      hasPointValues |= (info.getPointDataDimensionCount() != 0);
       if (info.isSoftDeletesField()) {
         if (softDeletesField != null && softDeletesField.equals(info.name) == false) {
           throw new IllegalArgumentException("multiple soft-deletes fields [" + info.name + ", " + softDeletesField + "]");
@@ -210,11 +210,13 @@ public class FieldInfos implements Iterable<FieldInfo> {
   }
 
   static final class FieldDimensions {
-    public final int dimensionCount;
+    public final int dataDimensionCount;
+    public final int indexDimensionCount;
     public final int dimensionNumBytes;
 
-    public FieldDimensions(int dimensionCount, int dimensionNumBytes) {
-      this.dimensionCount = dimensionCount;
+    public FieldDimensions(int dataDimensionCount, int indexDimensionCount, int dimensionNumBytes) {
+      this.dataDimensionCount = dataDimensionCount;
+      this.indexDimensionCount = indexDimensionCount;
       this.dimensionNumBytes = dimensionNumBytes;
     }
   }
@@ -254,7 +256,7 @@ public class FieldInfos implements Iterable<FieldInfo> {
      * number assigned if possible otherwise the first unassigned field number
      * is used as the field number.
      */
-    synchronized int addOrGet(String fieldName, int preferredFieldNumber, IndexOptions indexOptions, DocValuesType dvType, int dimensionCount, int dimensionNumBytes, boolean isSoftDeletesField) {
+    synchronized int addOrGet(String fieldName, int preferredFieldNumber, IndexOptions indexOptions, DocValuesType dvType, int dataDimensionCount, int indexDimensionCount, int dimensionNumBytes, boolean isSoftDeletesField) {
       if (indexOptions != IndexOptions.NONE) {
         IndexOptions currentOpts = this.indexOptions.get(fieldName);
         if (currentOpts == null) {
@@ -271,17 +273,20 @@ public class FieldInfos implements Iterable<FieldInfo> {
           throw new IllegalArgumentException("cannot change DocValues type from " + currentDVType + " to " + dvType + " for field \"" + fieldName + "\"");
         }
       }
-      if (dimensionCount != 0) {
+      if (dataDimensionCount != 0) {
         FieldDimensions dims = dimensions.get(fieldName);
         if (dims != null) {
-          if (dims.dimensionCount != dimensionCount) {
-            throw new IllegalArgumentException("cannot change point dimension count from " + dims.dimensionCount + " to " + dimensionCount + " for field=\"" + fieldName + "\"");
+          if (dims.dataDimensionCount != dataDimensionCount) {
+            throw new IllegalArgumentException("cannot change point data dimension count from " + dims.dataDimensionCount + " to " + dataDimensionCount + " for field=\"" + fieldName + "\"");
+          }
+          if (dims.indexDimensionCount != indexDimensionCount) {
+            throw new IllegalArgumentException("cannot change point index dimension count from " + dims.indexDimensionCount + " to " + indexDimensionCount + " for field=\"" + fieldName + "\"");
           }
           if (dims.dimensionNumBytes != dimensionNumBytes) {
             throw new IllegalArgumentException("cannot change point numBytes from " + dims.dimensionNumBytes + " to " + dimensionNumBytes + " for field=\"" + fieldName + "\"");
           }
         } else {
-          dimensions.put(fieldName, new FieldDimensions(dimensionCount, dimensionNumBytes));
+          dimensions.put(fieldName, new FieldDimensions(dataDimensionCount, indexDimensionCount, dimensionNumBytes));
         }
       }
       Integer fieldNumber = nameToNumber.get(fieldName);
@@ -341,7 +346,7 @@ public class FieldInfos implements Iterable<FieldInfo> {
       }
     }
 
-    synchronized void verifyConsistentDimensions(Integer number, String name, int dimensionCount, int dimensionNumBytes) {
+    synchronized void verifyConsistentDimensions(Integer number, String name, int dataDimensionCount, int indexDimensionCount, int dimensionNumBytes) {
       if (name.equals(numberToName.get(number)) == false) {
         throw new IllegalArgumentException("field number " + number + " is already mapped to field name \"" + numberToName.get(number) + "\", not \"" + name + "\"");
       }
@@ -350,8 +355,11 @@ public class FieldInfos implements Iterable<FieldInfo> {
       }
       FieldDimensions dim = dimensions.get(name);
       if (dim != null) {
-        if (dim.dimensionCount != dimensionCount) {
-          throw new IllegalArgumentException("cannot change point dimension count from " + dim.dimensionCount + " to " + dimensionCount + " for field=\"" + name + "\"");
+        if (dim.dataDimensionCount != dataDimensionCount) {
+          throw new IllegalArgumentException("cannot change point data dimension count from " + dim.dataDimensionCount + " to " + dataDimensionCount + " for field=\"" + name + "\"");
+        }
+        if (dim.indexDimensionCount != indexDimensionCount) {
+          throw new IllegalArgumentException("cannot change point index dimension count from " + dim.indexDimensionCount + " to " + indexDimensionCount + " for field=\"" + name + "\"");
         }
         if (dim.dimensionNumBytes != dimensionNumBytes) {
           throw new IllegalArgumentException("cannot change point numBytes from " + dim.dimensionNumBytes + " to " + dimensionNumBytes + " for field=\"" + name + "\"");
@@ -395,15 +403,18 @@ public class FieldInfos implements Iterable<FieldInfo> {
       docValuesType.put(name, dvType);
     }
 
-    synchronized void setDimensions(int number, String name, int dimensionCount, int dimensionNumBytes) {
+    synchronized void setDimensions(int number, String name, int dataDimensionCount, int indexDimensionCount, int dimensionNumBytes) {
       if (dimensionNumBytes > PointValues.MAX_NUM_BYTES) {
         throw new IllegalArgumentException("dimension numBytes must be <= PointValues.MAX_NUM_BYTES (= " + PointValues.MAX_NUM_BYTES + "); got " + dimensionNumBytes + " for field=\"" + name + "\"");
       }
-      if (dimensionCount > PointValues.MAX_DIMENSIONS) {
-        throw new IllegalArgumentException("pointDimensionCount must be <= PointValues.MAX_DIMENSIONS (= " + PointValues.MAX_DIMENSIONS + "); got " + dimensionCount + " for field=\"" + name + "\"");
+      if (dataDimensionCount > PointValues.MAX_DIMENSIONS) {
+        throw new IllegalArgumentException("pointDataDimensionCount must be <= PointValues.MAX_DIMENSIONS (= " + PointValues.MAX_DIMENSIONS + "); got " + dataDimensionCount + " for field=\"" + name + "\"");
+      }
+      if (indexDimensionCount > dataDimensionCount) {
+        throw new IllegalArgumentException("pointIndexDimensionCount must be <= pointDataDimensionCount (= " + dataDimensionCount + "); got " + indexDimensionCount + " for field=\"" + name + "\"");
       }
-      verifyConsistentDimensions(number, name, dimensionCount, dimensionNumBytes);
-      dimensions.put(name, new FieldDimensions(dimensionCount, dimensionNumBytes));
+      verifyConsistentDimensions(number, name, dataDimensionCount, indexDimensionCount, dimensionNumBytes);
+      dimensions.put(name, new FieldDimensions(dataDimensionCount, indexDimensionCount, dimensionNumBytes));
     }
   }
   
@@ -438,8 +449,8 @@ public class FieldInfos implements Iterable<FieldInfo> {
         // before then we'll get the same name and number,
         // else we'll allocate a new one:
         final boolean isSoftDeletesField = name.equals(globalFieldNumbers.softDeletesFieldName);
-        final int fieldNumber = globalFieldNumbers.addOrGet(name, -1, IndexOptions.NONE, DocValuesType.NONE, 0, 0, isSoftDeletesField);
-        fi = new FieldInfo(name, fieldNumber, false, false, false, IndexOptions.NONE, DocValuesType.NONE, -1, new HashMap<>(), 0, 0, isSoftDeletesField);
+        final int fieldNumber = globalFieldNumbers.addOrGet(name, -1, IndexOptions.NONE, DocValuesType.NONE, 0, 0, 0, isSoftDeletesField);
+        fi = new FieldInfo(name, fieldNumber, false, false, false, IndexOptions.NONE, DocValuesType.NONE, -1, new HashMap<>(), 0, 0, 0, isSoftDeletesField);
         assert !byName.containsKey(fi.name);
         globalFieldNumbers.verifyConsistent(Integer.valueOf(fi.number), fi.name, DocValuesType.NONE);
         byName.put(fi.name, fi);
@@ -452,7 +463,8 @@ public class FieldInfos implements Iterable<FieldInfo> {
                                           boolean storeTermVector,
                                           boolean omitNorms, boolean storePayloads, IndexOptions indexOptions,
                                           DocValuesType docValues, long dvGen,
-                                          int dimensionCount, int dimensionNumBytes, boolean isSoftDeletesField) {
+                                          int dataDimensionCount, int indexDimensionCount, int dimensionNumBytes,
+                                          boolean isSoftDeletesField) {
       assert assertNotFinished();
       if (docValues == null) {
         throw new NullPointerException("DocValuesType must not be null");
@@ -464,13 +476,13 @@ public class FieldInfos implements Iterable<FieldInfo> {
         // number for this field.  If the field was seen
         // before then we'll get the same name and number,
         // else we'll allocate a new one:
-        final int fieldNumber = globalFieldNumbers.addOrGet(name, preferredFieldNumber, indexOptions, docValues, dimensionCount, dimensionNumBytes, isSoftDeletesField);
-        fi = new FieldInfo(name, fieldNumber, storeTermVector, omitNorms, storePayloads, indexOptions, docValues, dvGen, new HashMap<>(), dimensionCount, dimensionNumBytes, isSoftDeletesField);
+        final int fieldNumber = globalFieldNumbers.addOrGet(name, preferredFieldNumber, indexOptions, docValues, dataDimensionCount, indexDimensionCount, dimensionNumBytes, isSoftDeletesField);
+        fi = new FieldInfo(name, fieldNumber, storeTermVector, omitNorms, storePayloads, indexOptions, docValues, dvGen, new HashMap<>(), dataDimensionCount, indexDimensionCount, dimensionNumBytes, isSoftDeletesField);
         assert !byName.containsKey(fi.name);
         globalFieldNumbers.verifyConsistent(Integer.valueOf(fi.number), fi.name, fi.getDocValuesType());
         byName.put(fi.name, fi);
       } else {
-        fi.update(storeTermVector, omitNorms, storePayloads, indexOptions, dimensionCount, dimensionNumBytes);
+        fi.update(storeTermVector, omitNorms, storePayloads, indexOptions, dataDimensionCount, indexDimensionCount, dimensionNumBytes);
 
         if (docValues != DocValuesType.NONE) {
           // Only pay the synchronization cost if fi does not already have a DVType
@@ -498,7 +510,8 @@ public class FieldInfos implements Iterable<FieldInfo> {
       return addOrUpdateInternal(fi.name, fi.number, fi.hasVectors(),
                                  fi.omitsNorms(), fi.hasPayloads(),
                                  fi.getIndexOptions(), fi.getDocValuesType(), dvGen,
-                                 fi.getPointDimensionCount(), fi.getPointNumBytes(), fi.isSoftDeletesField());
+                                 fi.getPointDataDimensionCount(), fi.getPointIndexDimensionCount(), fi.getPointNumBytes(),
+                                 fi.isSoftDeletesField());
     }
     
     public FieldInfo fieldInfo(String fieldName) {

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/index/IndexWriter.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/index/IndexWriter.java b/lucene/core/src/java/org/apache/lucene/index/IndexWriter.java
index db6ef9f..34424af 100644
--- a/lucene/core/src/java/org/apache/lucene/index/IndexWriter.java
+++ b/lucene/core/src/java/org/apache/lucene/index/IndexWriter.java
@@ -991,7 +991,7 @@ public class IndexWriter implements Closeable, TwoPhaseCommit, Accountable,
     for(SegmentCommitInfo info : segmentInfos) {
       FieldInfos fis = readFieldInfos(info);
       for(FieldInfo fi : fis) {
-        map.addOrGet(fi.name, fi.number, fi.getIndexOptions(), fi.getDocValuesType(), fi.getPointDimensionCount(), fi.getPointNumBytes(), fi.isSoftDeletesField());
+        map.addOrGet(fi.name, fi.number, fi.getIndexOptions(), fi.getDocValuesType(), fi.getPointDataDimensionCount(), fi.getPointIndexDimensionCount(), fi.getPointNumBytes(), fi.isSoftDeletesField());
       }
     }
 
@@ -1813,7 +1813,7 @@ public class IndexWriter implements Closeable, TwoPhaseCommit, Accountable,
       if (globalFieldNumberMap.contains(f.name(), dvType) == false) {
         // if this field doesn't exists we try to add it. if it exists and the DV type doesn't match we
         // get a consistent error message as if you try to do that during an indexing operation.
-        globalFieldNumberMap.addOrGet(f.name(), -1, IndexOptions.NONE, dvType, 0, 0, f.name().equals(config.softDeletesField));
+        globalFieldNumberMap.addOrGet(f.name(), -1, IndexOptions.NONE, dvType, 0, 0, 0, f.name().equals(config.softDeletesField));
         assert globalFieldNumberMap.contains(f.name(), dvType);
       }
       if (config.getIndexSortFields().contains(f.name())) {
@@ -2849,7 +2849,7 @@ public class IndexWriter implements Closeable, TwoPhaseCommit, Accountable,
             FieldInfos fis = readFieldInfos(info);
             for(FieldInfo fi : fis) {
               // This will throw exceptions if any of the incoming fields have an illegal schema change:
-              globalFieldNumberMap.addOrGet(fi.name, fi.number, fi.getIndexOptions(), fi.getDocValuesType(), fi.getPointDimensionCount(), fi.getPointNumBytes(), fi.isSoftDeletesField());
+              globalFieldNumberMap.addOrGet(fi.name, fi.number, fi.getIndexOptions(), fi.getDocValuesType(), fi.getPointDataDimensionCount(), fi.getPointIndexDimensionCount(), fi.getPointNumBytes(), fi.isSoftDeletesField());
             }
             infos.add(copySegmentAsIs(info, newSegName, context));
           }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/index/IndexableFieldType.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/index/IndexableFieldType.java b/lucene/core/src/java/org/apache/lucene/index/IndexableFieldType.java
index a797cf8..b2b2e77 100644
--- a/lucene/core/src/java/org/apache/lucene/index/IndexableFieldType.java
+++ b/lucene/core/src/java/org/apache/lucene/index/IndexableFieldType.java
@@ -98,9 +98,14 @@ public interface IndexableFieldType {
   public DocValuesType docValuesType();
 
   /**
-   * If this is positive, the field is indexed as a point.
+   * If this is positive (representing the number of point data dimensions), the field is indexed as a point.
    */
-  public int pointDimensionCount();
+  public int pointDataDimensionCount();
+
+  /**
+   * The number of dimensions used for the index key
+   */
+  public int pointIndexDimensionCount();
 
   /**
    * The number of bytes in each dimension's values.

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/index/PointValues.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/index/PointValues.java b/lucene/core/src/java/org/apache/lucene/index/PointValues.java
index df433d2..51b12d1 100644
--- a/lucene/core/src/java/org/apache/lucene/index/PointValues.java
+++ b/lucene/core/src/java/org/apache/lucene/index/PointValues.java
@@ -136,7 +136,7 @@ public abstract class PointValues {
       if (minValue == null) {
         minValue = leafMinValue.clone();
       } else {
-        final int numDimensions = values.getNumDimensions();
+        final int numDimensions = values.getNumIndexDimensions();
         final int numBytesPerDimension = values.getBytesPerDimension();
         for (int i = 0; i < numDimensions; ++i) {
           int offset = i * numBytesPerDimension;
@@ -167,7 +167,7 @@ public abstract class PointValues {
       if (maxValue == null) {
         maxValue = leafMaxValue.clone();
       } else {
-        final int numDimensions = values.getNumDimensions();
+        final int numDimensions = values.getNumIndexDimensions();
         final int numBytesPerDimension = values.getBytesPerDimension();
         for (int i = 0; i < numDimensions; ++i) {
           int offset = i * numBytesPerDimension;
@@ -233,8 +233,11 @@ public abstract class PointValues {
   /** Returns maximum value for each dimension, packed, or null if {@link #size} is <code>0</code> */
   public abstract byte[] getMaxPackedValue() throws IOException;
 
-  /** Returns how many dimensions were indexed */
-  public abstract int getNumDimensions() throws IOException;
+  /** Returns how many data dimensions are represented in the values */
+  public abstract int getNumDataDimensions() throws IOException;
+
+  /** Returns how many dimensions are used for the index */
+  public abstract int getNumIndexDimensions() throws IOException;
 
   /** Returns the number of bytes per dimension */
   public abstract int getBytesPerDimension() throws IOException;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/index/PointValuesWriter.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/index/PointValuesWriter.java b/lucene/core/src/java/org/apache/lucene/index/PointValuesWriter.java
index 4aaf095..eb11ec3 100644
--- a/lucene/core/src/java/org/apache/lucene/index/PointValuesWriter.java
+++ b/lucene/core/src/java/org/apache/lucene/index/PointValuesWriter.java
@@ -43,7 +43,7 @@ class PointValuesWriter {
     this.bytes = new ByteBlockPool(docWriter.byteBlockAllocator);
     docIDs = new int[16];
     iwBytesUsed.addAndGet(16 * Integer.BYTES);
-    packedBytesLength = fieldInfo.getPointDimensionCount() * fieldInfo.getPointNumBytes();
+    packedBytesLength = fieldInfo.getPointDataDimensionCount() * fieldInfo.getPointNumBytes();
   }
 
   // TODO: if exactly the same value is added to exactly the same doc, should we dedup?
@@ -52,7 +52,7 @@ class PointValuesWriter {
       throw new IllegalArgumentException("field=" + fieldInfo.name + ": point value must not be null");
     }
     if (value.length != packedBytesLength) {
-      throw new IllegalArgumentException("field=" + fieldInfo.name + ": this field's value has length=" + value.length + " but should be " + (fieldInfo.getPointDimensionCount() * fieldInfo.getPointNumBytes()));
+      throw new IllegalArgumentException("field=" + fieldInfo.name + ": this field's value has length=" + value.length + " but should be " + (fieldInfo.getPointDataDimensionCount() * fieldInfo.getPointNumBytes()));
     }
 
     if (docIDs.length == numPoints) {
@@ -106,7 +106,12 @@ class PointValuesWriter {
       }
 
       @Override
-      public int getNumDimensions() {
+      public int getNumDataDimensions() {
+        throw new UnsupportedOperationException();
+      }
+
+      @Override
+      public int getNumIndexDimensions() {
         throw new UnsupportedOperationException();
       }
 
@@ -229,8 +234,13 @@ class PointValuesWriter {
     }
 
     @Override
-    public int getNumDimensions() throws IOException {
-      return in.getNumDimensions();
+    public int getNumDataDimensions() throws IOException {
+      return in.getNumDataDimensions();
+    }
+
+    @Override
+    public int getNumIndexDimensions() throws IOException {
+      return in.getNumIndexDimensions();
     }
 
     @Override

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/index/SortingLeafReader.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/index/SortingLeafReader.java b/lucene/core/src/java/org/apache/lucene/index/SortingLeafReader.java
index 55e4d20..d9ed94b 100644
--- a/lucene/core/src/java/org/apache/lucene/index/SortingLeafReader.java
+++ b/lucene/core/src/java/org/apache/lucene/index/SortingLeafReader.java
@@ -344,8 +344,13 @@ class SortingLeafReader extends FilterLeafReader {
     }
 
     @Override
-    public int getNumDimensions() throws IOException {
-      return in.getNumDimensions();
+    public int getNumDataDimensions() throws IOException {
+      return in.getNumDataDimensions();
+    }
+
+    @Override
+    public int getNumIndexDimensions() throws IOException {
+      return in.getNumIndexDimensions();
     }
 
     @Override

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/search/PointInSetQuery.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/search/PointInSetQuery.java b/lucene/core/src/java/org/apache/lucene/search/PointInSetQuery.java
index eca38a3..487bdfb 100644
--- a/lucene/core/src/java/org/apache/lucene/search/PointInSetQuery.java
+++ b/lucene/core/src/java/org/apache/lucene/search/PointInSetQuery.java
@@ -123,8 +123,8 @@ public abstract class PointInSetQuery extends Query {
           return null;
         }
 
-        if (values.getNumDimensions() != numDims) {
-          throw new IllegalArgumentException("field=\"" + field + "\" was indexed with numDims=" + values.getNumDimensions() + " but this query has numDims=" + numDims);
+        if (values.getNumIndexDimensions() != numDims) {
+          throw new IllegalArgumentException("field=\"" + field + "\" was indexed with numIndexDims=" + values.getNumIndexDimensions() + " but this query has numIndexDims=" + numDims);
         }
         if (values.getBytesPerDimension() != bytesPerDim) {
           throw new IllegalArgumentException("field=\"" + field + "\" was indexed with bytesPerDim=" + values.getBytesPerDimension() + " but this query has bytesPerDim=" + bytesPerDim);

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/search/PointRangeQuery.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/search/PointRangeQuery.java b/lucene/core/src/java/org/apache/lucene/search/PointRangeQuery.java
index 031ca38..688a31f 100644
--- a/lucene/core/src/java/org/apache/lucene/search/PointRangeQuery.java
+++ b/lucene/core/src/java/org/apache/lucene/search/PointRangeQuery.java
@@ -234,8 +234,8 @@ public abstract class PointRangeQuery extends Query {
           return null;
         }
 
-        if (values.getNumDimensions() != numDims) {
-          throw new IllegalArgumentException("field=\"" + field + "\" was indexed with numDims=" + values.getNumDimensions() + " but this query has numDims=" + numDims);
+        if (values.getNumIndexDimensions() != numDims) {
+          throw new IllegalArgumentException("field=\"" + field + "\" was indexed with numIndexDimensions=" + values.getNumIndexDimensions() + " but this query has numDims=" + numDims);
         }
         if (bytesPerDim != values.getBytesPerDimension()) {
           throw new IllegalArgumentException("field=\"" + field + "\" was indexed with bytesPerDim=" + values.getBytesPerDimension() + " but this query has bytesPerDim=" + bytesPerDim);

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/util/bkd/BKDReader.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/util/bkd/BKDReader.java b/lucene/core/src/java/org/apache/lucene/util/bkd/BKDReader.java
index 00a1d7d..3cbb054 100644
--- a/lucene/core/src/java/org/apache/lucene/util/bkd/BKDReader.java
+++ b/lucene/core/src/java/org/apache/lucene/util/bkd/BKDReader.java
@@ -35,7 +35,8 @@ import org.apache.lucene.util.MathUtil;
 public final class BKDReader extends PointValues implements Accountable {
   // Packed array of byte[] holding all split values in the full binary tree:
   final int leafNodeOffset;
-  final int numDims;
+  final int numDataDims;
+  final int numIndexDims;
   final int bytesPerDim;
   final int numLeaves;
   final IndexInput in;
@@ -46,29 +47,36 @@ public final class BKDReader extends PointValues implements Accountable {
   final int docCount;
   final int version;
   protected final int packedBytesLength;
+  protected final int packedIndexBytesLength;
 
   final byte[] packedIndex;
 
   /** Caller must pre-seek the provided {@link IndexInput} to the index location that {@link BKDWriter#finish} returned */
   public BKDReader(IndexInput in) throws IOException {
     version = CodecUtil.checkHeader(in, BKDWriter.CODEC_NAME, BKDWriter.VERSION_START, BKDWriter.VERSION_CURRENT);
-    numDims = in.readVInt();
+    numDataDims = in.readVInt();
+    if (version >= BKDWriter.VERSION_SELECTIVE_INDEXING) {
+      numIndexDims = in.readVInt();
+    } else {
+      numIndexDims = numDataDims;
+    }
     maxPointsInLeafNode = in.readVInt();
     bytesPerDim = in.readVInt();
-    packedBytesLength = numDims * bytesPerDim;
+    packedBytesLength = numDataDims * bytesPerDim;
+    packedIndexBytesLength = numIndexDims * bytesPerDim;
 
     // Read index:
     numLeaves = in.readVInt();
     assert numLeaves > 0;
     leafNodeOffset = numLeaves;
 
-    minPackedValue = new byte[packedBytesLength];
-    maxPackedValue = new byte[packedBytesLength];
+    minPackedValue = new byte[packedIndexBytesLength];
+    maxPackedValue = new byte[packedIndexBytesLength];
 
-    in.readBytes(minPackedValue, 0, packedBytesLength);
-    in.readBytes(maxPackedValue, 0, packedBytesLength);
+    in.readBytes(minPackedValue, 0, packedIndexBytesLength);
+    in.readBytes(maxPackedValue, 0, packedIndexBytesLength);
 
-    for(int dim=0;dim<numDims;dim++) {
+    for(int dim=0;dim<numIndexDims;dim++) {
       if (FutureArrays.compareUnsigned(minPackedValue, dim * bytesPerDim, dim * bytesPerDim + bytesPerDim, maxPackedValue, dim * bytesPerDim, dim * bytesPerDim + bytesPerDim) > 0) {
         throw new CorruptIndexException("minPackedValue " + new BytesRef(minPackedValue) + " is > maxPackedValue " + new BytesRef(maxPackedValue) + " for dim=" + dim, in);
       }
@@ -122,16 +130,16 @@ public final class BKDReader extends PointValues implements Accountable {
       splitPackedValueStack = new byte[treeDepth+1][];
       nodeID = 1;
       level = 1;
-      splitPackedValueStack[level] = new byte[packedBytesLength];
+      splitPackedValueStack[level] = new byte[packedIndexBytesLength];
       leafBlockFPStack = new long[treeDepth+1];
       leftNodePositions = new int[treeDepth+1];
       rightNodePositions = new int[treeDepth+1];
       splitValuesStack = new byte[treeDepth+1][];
       splitDims = new int[treeDepth+1];
-      negativeDeltas = new boolean[numDims*(treeDepth+1)];
+      negativeDeltas = new boolean[numIndexDims*(treeDepth+1)];
 
       in = new ByteArrayDataInput(packedIndex);
-      splitValuesStack[0] = new byte[packedBytesLength];
+      splitValuesStack[0] = new byte[packedIndexBytesLength];
       readNodeData(false);
       scratch = new BytesRef();
       scratch.length = bytesPerDim;
@@ -142,11 +150,11 @@ public final class BKDReader extends PointValues implements Accountable {
       nodeID *= 2;
       level++;
       if (splitPackedValueStack[level] == null) {
-        splitPackedValueStack[level] = new byte[packedBytesLength];
+        splitPackedValueStack[level] = new byte[packedIndexBytesLength];
       }
-      System.arraycopy(negativeDeltas, (level-1)*numDims, negativeDeltas, level*numDims, numDims);
+      System.arraycopy(negativeDeltas, (level-1)*numIndexDims, negativeDeltas, level*numIndexDims, numIndexDims);
       assert splitDim != -1;
-      negativeDeltas[level*numDims+splitDim] = true;
+      negativeDeltas[level*numIndexDims+splitDim] = true;
       in.setPosition(nodePosition);
       readNodeData(true);
     }
@@ -162,7 +170,7 @@ public final class BKDReader extends PointValues implements Accountable {
       index.leftNodePositions[level] = leftNodePositions[level];
       index.rightNodePositions[level] = rightNodePositions[level];
       index.splitValuesStack[index.level] = splitValuesStack[index.level].clone();
-      System.arraycopy(negativeDeltas, level*numDims, index.negativeDeltas, level*numDims, numDims);
+      System.arraycopy(negativeDeltas, level*numIndexDims, index.negativeDeltas, level*numIndexDims, numIndexDims);
       index.splitDims[level] = splitDims[level];
       return index;
     }
@@ -172,11 +180,11 @@ public final class BKDReader extends PointValues implements Accountable {
       nodeID = nodeID * 2 + 1;
       level++;
       if (splitPackedValueStack[level] == null) {
-        splitPackedValueStack[level] = new byte[packedBytesLength];
+        splitPackedValueStack[level] = new byte[packedIndexBytesLength];
       }
-      System.arraycopy(negativeDeltas, (level-1)*numDims, negativeDeltas, level*numDims, numDims);
+      System.arraycopy(negativeDeltas, (level-1)*numIndexDims, negativeDeltas, level*numIndexDims, numIndexDims);
       assert splitDim != -1;
-      negativeDeltas[level*numDims+splitDim] = false;
+      negativeDeltas[level*numIndexDims+splitDim] = false;
       in.setPosition(nodePosition);
       readNodeData(false);
     }
@@ -276,19 +284,19 @@ public final class BKDReader extends PointValues implements Accountable {
 
         // read split dim, prefix, firstDiffByteDelta encoded as int:
         int code = in.readVInt();
-        splitDim = code % numDims;
+        splitDim = code % numIndexDims;
         splitDims[level] = splitDim;
-        code /= numDims;
+        code /= numIndexDims;
         int prefix = code % (1+bytesPerDim);
         int suffix = bytesPerDim - prefix;
 
         if (splitValuesStack[level] == null) {
-          splitValuesStack[level] = new byte[packedBytesLength];
+          splitValuesStack[level] = new byte[packedIndexBytesLength];
         }
-        System.arraycopy(splitValuesStack[level-1], 0, splitValuesStack[level], 0, packedBytesLength);
+        System.arraycopy(splitValuesStack[level-1], 0, splitValuesStack[level], 0, packedIndexBytesLength);
         if (suffix > 0) {
           int firstDiffByteDelta = code / (1+bytesPerDim);
-          if (negativeDeltas[level*numDims + splitDim]) {
+          if (negativeDeltas[level*numIndexDims + splitDim]) {
             firstDiffByteDelta = -firstDiffByteDelta;
           }
           int oldByte = splitValuesStack[level][splitDim*bytesPerDim+prefix] & 0xFF;
@@ -325,7 +333,7 @@ public final class BKDReader extends PointValues implements Accountable {
   public static final class IntersectState {
     final IndexInput in;
     final int[] scratchDocIDs;
-    final byte[] scratchPackedValue1, scratchPackedValue2;
+    final byte[] scratchDataPackedValue, scratchMinIndexPackedValue, scratchMaxIndexPackedValue;
     final int[] commonPrefixLengths;
 
     final IntersectVisitor visitor;
@@ -333,6 +341,7 @@ public final class BKDReader extends PointValues implements Accountable {
 
     public IntersectState(IndexInput in, int numDims,
                           int packedBytesLength,
+                          int packedIndexBytesLength,
                           int maxPointsInLeafNode,
                           IntersectVisitor visitor,
                           IndexTree indexVisitor) {
@@ -340,8 +349,9 @@ public final class BKDReader extends PointValues implements Accountable {
       this.visitor = visitor;
       this.commonPrefixLengths = new int[numDims];
       this.scratchDocIDs = new int[maxPointsInLeafNode];
-      this.scratchPackedValue1 = new byte[packedBytesLength];
-      this.scratchPackedValue2 = new byte[packedBytesLength];
+      this.scratchDataPackedValue = new byte[packedBytesLength];
+      this.scratchMinIndexPackedValue = new byte[packedIndexBytesLength];
+      this.scratchMaxIndexPackedValue = new byte[packedIndexBytesLength];
       this.index = indexVisitor;
     }
   }
@@ -389,8 +399,9 @@ public final class BKDReader extends PointValues implements Accountable {
   /** Create a new {@link IntersectState} */
   public IntersectState getIntersectState(IntersectVisitor visitor) {
     IndexTree index = new IndexTree();
-    return new IntersectState(in.clone(), numDims,
+    return new IntersectState(in.clone(), numDataDims,
                               packedBytesLength,
+                              packedIndexBytesLength,
                               maxPointsInLeafNode,
                               visitor,
                               index);
@@ -403,7 +414,7 @@ public final class BKDReader extends PointValues implements Accountable {
     int count = readDocIDs(state.in, index.getLeafBlockFP(), state.scratchDocIDs);
 
     // Again, this time reading values and checking with the visitor
-    visitDocValues(state.commonPrefixLengths, state.scratchPackedValue1, state.scratchPackedValue2, state.in, state.scratchDocIDs, count, state.visitor);
+    visitDocValues(state.commonPrefixLengths, state.scratchDataPackedValue, state.scratchMinIndexPackedValue, state.scratchMaxIndexPackedValue, state.in, state.scratchDocIDs, count, state.visitor);
   }
 
   private void visitDocIDs(IndexInput in, long blockFP, IntersectVisitor visitor) throws IOException {
@@ -428,17 +439,19 @@ public final class BKDReader extends PointValues implements Accountable {
     return count;
   }
 
-  void visitDocValues(int[] commonPrefixLengths, byte[] scratchPackedValue1, byte[] scratchPackedValue2, IndexInput in, int[] docIDs, int count, IntersectVisitor visitor) throws IOException {
+  void visitDocValues(int[] commonPrefixLengths, byte[] scratchDataPackedValue, byte[] scratchMinIndexPackedValue, byte[] scratchMaxIndexPackedValue,
+                      IndexInput in, int[] docIDs, int count, IntersectVisitor visitor) throws IOException {
 
 
-    readCommonPrefixes(commonPrefixLengths, scratchPackedValue1, in);
+    readCommonPrefixes(commonPrefixLengths, scratchDataPackedValue, in);
 
-    if (numDims != 1 && version >= BKDWriter.VERSION_LEAF_STORES_BOUNDS) {
-      byte[] minPackedValue = scratchPackedValue1;
-      byte[] maxPackedValue = scratchPackedValue2;
+    if (numIndexDims != 1 && version >= BKDWriter.VERSION_LEAF_STORES_BOUNDS) {
+      byte[] minPackedValue = scratchMinIndexPackedValue;
+      System.arraycopy(scratchDataPackedValue, 0, minPackedValue, 0, packedIndexBytesLength);
+      byte[] maxPackedValue = scratchMaxIndexPackedValue;
       //Copy common prefixes before reading adjusted
       // box
-      System.arraycopy(minPackedValue, 0, maxPackedValue, 0, packedBytesLength);
+      System.arraycopy(minPackedValue, 0, maxPackedValue, 0, packedIndexBytesLength);
       readMinMax(commonPrefixLengths, minPackedValue, maxPackedValue, in);
 
       // The index gives us range of values for each dimension, but the actual range of values
@@ -467,24 +480,24 @@ public final class BKDReader extends PointValues implements Accountable {
     int compressedDim = readCompressedDim(in);
 
     if (compressedDim == -1) {
-      visitRawDocValues(commonPrefixLengths, scratchPackedValue1, in, docIDs, count, visitor);
+      visitRawDocValues(commonPrefixLengths, scratchDataPackedValue, in, docIDs, count, visitor);
     } else {
-      visitCompressedDocValues(commonPrefixLengths, scratchPackedValue1, in, docIDs, count, visitor, compressedDim);
+      visitCompressedDocValues(commonPrefixLengths, scratchDataPackedValue, in, docIDs, count, visitor, compressedDim);
     }
   }
 
-    private void readMinMax(int[] commonPrefixLengths, byte[] minPackedValue, byte[] maxPackedValue, IndexInput in) throws IOException {
-      for (int dim = 0; dim < numDims; dim++) {
-        int prefix = commonPrefixLengths[dim];
-        in.readBytes(minPackedValue, dim * bytesPerDim + prefix, bytesPerDim - prefix);
-        in.readBytes(maxPackedValue, dim * bytesPerDim + prefix, bytesPerDim - prefix);
-      }
+  private void readMinMax(int[] commonPrefixLengths, byte[] minPackedValue, byte[] maxPackedValue, IndexInput in) throws IOException {
+    for (int dim = 0; dim < numIndexDims; dim++) {
+      int prefix = commonPrefixLengths[dim];
+      in.readBytes(minPackedValue, dim * bytesPerDim + prefix, bytesPerDim - prefix);
+      in.readBytes(maxPackedValue, dim * bytesPerDim + prefix, bytesPerDim - prefix);
     }
+  }
 
   // Just read suffixes for every dimension
   private void visitRawDocValues(int[] commonPrefixLengths, byte[] scratchPackedValue, IndexInput in, int[] docIDs, int count, IntersectVisitor visitor) throws IOException {
     for (int i = 0; i < count; ++i) {
-      for(int dim=0;dim<numDims;dim++) {
+      for(int dim=0;dim<numDataDims;dim++) {
         int prefix = commonPrefixLengths[dim];
         in.readBytes(scratchPackedValue, dim*bytesPerDim + prefix, bytesPerDim - prefix);
       }
@@ -502,7 +515,7 @@ public final class BKDReader extends PointValues implements Accountable {
       scratchPackedValue[compressedByteOffset] = in.readByte();
       final int runLen = Byte.toUnsignedInt(in.readByte());
       for (int j = 0; j < runLen; ++j) {
-        for(int dim=0;dim<numDims;dim++) {
+        for(int dim=0;dim<numDataDims;dim++) {
           int prefix = commonPrefixLengths[dim];
           in.readBytes(scratchPackedValue, dim*bytesPerDim + prefix, bytesPerDim - prefix);
         }
@@ -517,14 +530,14 @@ public final class BKDReader extends PointValues implements Accountable {
 
   private int readCompressedDim(IndexInput in) throws IOException {
     int compressedDim = in.readByte();
-    if (compressedDim < -1 || compressedDim >= numDims) {
+    if (compressedDim < -1 || compressedDim >= numDataDims) {
       throw new CorruptIndexException("Got compressedDim="+compressedDim, in);
     }
     return compressedDim;
   }
 
   private void readCommonPrefixes(int[] commonPrefixLengths, byte[] scratchPackedValue, IndexInput in) throws IOException {
-    for(int dim=0;dim<numDims;dim++) {
+    for(int dim=0;dim<numDataDims;dim++) {
       int prefix = in.readVInt();
       commonPrefixLengths[dim] = prefix;
       if (prefix > 0) {
@@ -561,15 +574,15 @@ public final class BKDReader extends PointValues implements Accountable {
         int count = readDocIDs(state.in, state.index.getLeafBlockFP(), state.scratchDocIDs);
 
         // Again, this time reading values and checking with the visitor
-        visitDocValues(state.commonPrefixLengths, state.scratchPackedValue1, state.scratchPackedValue2, state.in, state.scratchDocIDs, count, state.visitor);
+        visitDocValues(state.commonPrefixLengths, state.scratchDataPackedValue, state.scratchMinIndexPackedValue, state.scratchMaxIndexPackedValue, state.in, state.scratchDocIDs, count, state.visitor);
       }
 
     } else {
       
       // Non-leaf node: recurse on the split left and right nodes
       int splitDim = state.index.getSplitDim();
-      assert splitDim >= 0: "splitDim=" + splitDim;
-      assert splitDim < numDims;
+      assert splitDim >= 0: "splitDim=" + splitDim + ", numIndexDims=" + numIndexDims;
+      assert splitDim < numIndexDims: "splitDim=" + splitDim + ", numIndexDims=" + numIndexDims;
 
       byte[] splitPackedValue = state.index.getSplitPackedValue();
       BytesRef splitDimValue = state.index.getSplitDimValue();
@@ -577,11 +590,11 @@ public final class BKDReader extends PointValues implements Accountable {
       //System.out.println("  splitDimValue=" + splitDimValue + " splitDim=" + splitDim);
 
       // make sure cellMin <= splitValue <= cellMax:
-      assert FutureArrays.compareUnsigned(cellMinPacked, splitDim * bytesPerDim, splitDim * bytesPerDim + bytesPerDim, splitDimValue.bytes, splitDimValue.offset, splitDimValue.offset + bytesPerDim) <= 0: "bytesPerDim=" + bytesPerDim + " splitDim=" + splitDim + " numDims=" + numDims;
-      assert FutureArrays.compareUnsigned(cellMaxPacked, splitDim * bytesPerDim, splitDim * bytesPerDim + bytesPerDim, splitDimValue.bytes, splitDimValue.offset, splitDimValue.offset + bytesPerDim) >= 0: "bytesPerDim=" + bytesPerDim + " splitDim=" + splitDim + " numDims=" + numDims;
+      assert FutureArrays.compareUnsigned(cellMinPacked, splitDim * bytesPerDim, splitDim * bytesPerDim + bytesPerDim, splitDimValue.bytes, splitDimValue.offset, splitDimValue.offset + bytesPerDim) <= 0: "bytesPerDim=" + bytesPerDim + " splitDim=" + splitDim + " numIndexDims=" + numIndexDims + " numDataDims=" + numDataDims;
+      assert FutureArrays.compareUnsigned(cellMaxPacked, splitDim * bytesPerDim, splitDim * bytesPerDim + bytesPerDim, splitDimValue.bytes, splitDimValue.offset, splitDimValue.offset + bytesPerDim) >= 0: "bytesPerDim=" + bytesPerDim + " splitDim=" + splitDim + " numIndexDims=" + numIndexDims + " numDataDims=" + numDataDims;
 
       // Recurse on left sub-tree:
-      System.arraycopy(cellMaxPacked, 0, splitPackedValue, 0, packedBytesLength);
+      System.arraycopy(cellMaxPacked, 0, splitPackedValue, 0, packedIndexBytesLength);
       System.arraycopy(splitDimValue.bytes, splitDimValue.offset, splitPackedValue, splitDim*bytesPerDim, bytesPerDim);
       state.index.pushLeft();
       intersect(state, cellMinPacked, splitPackedValue);
@@ -591,7 +604,7 @@ public final class BKDReader extends PointValues implements Accountable {
       System.arraycopy(splitPackedValue, splitDim*bytesPerDim, splitDimValue.bytes, splitDimValue.offset, bytesPerDim);
 
       // Recurse on right sub-tree:
-      System.arraycopy(cellMinPacked, 0, splitPackedValue, 0, packedBytesLength);
+      System.arraycopy(cellMinPacked, 0, splitPackedValue, 0, packedIndexBytesLength);
       System.arraycopy(splitDimValue.bytes, splitDimValue.offset, splitPackedValue, splitDim*bytesPerDim, bytesPerDim);
       state.index.pushRight();
       intersect(state, splitPackedValue, cellMaxPacked);
@@ -622,8 +635,8 @@ public final class BKDReader extends PointValues implements Accountable {
       
       // Non-leaf node: recurse on the split left and right nodes
       int splitDim = state.index.getSplitDim();
-      assert splitDim >= 0: "splitDim=" + splitDim;
-      assert splitDim < numDims;
+      assert splitDim >= 0: "splitDim=" + splitDim + ", numIndexDims=" + numIndexDims;
+      assert splitDim < numIndexDims: "splitDim=" + splitDim + ", numIndexDims=" + numIndexDims;
 
       byte[] splitPackedValue = state.index.getSplitPackedValue();
       BytesRef splitDimValue = state.index.getSplitDimValue();
@@ -631,11 +644,11 @@ public final class BKDReader extends PointValues implements Accountable {
       //System.out.println("  splitDimValue=" + splitDimValue + " splitDim=" + splitDim);
 
       // make sure cellMin <= splitValue <= cellMax:
-      assert FutureArrays.compareUnsigned(cellMinPacked, splitDim * bytesPerDim, splitDim * bytesPerDim + bytesPerDim, splitDimValue.bytes, splitDimValue.offset, splitDimValue.offset + bytesPerDim) <= 0: "bytesPerDim=" + bytesPerDim + " splitDim=" + splitDim + " numDims=" + numDims;
-      assert FutureArrays.compareUnsigned(cellMaxPacked, splitDim * bytesPerDim, splitDim * bytesPerDim + bytesPerDim, splitDimValue.bytes, splitDimValue.offset, splitDimValue.offset + bytesPerDim) >= 0: "bytesPerDim=" + bytesPerDim + " splitDim=" + splitDim + " numDims=" + numDims;
+      assert FutureArrays.compareUnsigned(cellMinPacked, splitDim * bytesPerDim, splitDim * bytesPerDim + bytesPerDim, splitDimValue.bytes, splitDimValue.offset, splitDimValue.offset + bytesPerDim) <= 0: "bytesPerDim=" + bytesPerDim + " splitDim=" + splitDim + " numIndexDims=" + numIndexDims + " numDataDims=" + numDataDims;
+      assert FutureArrays.compareUnsigned(cellMaxPacked, splitDim * bytesPerDim, splitDim * bytesPerDim + bytesPerDim, splitDimValue.bytes, splitDimValue.offset, splitDimValue.offset + bytesPerDim) >= 0: "bytesPerDim=" + bytesPerDim + " splitDim=" + splitDim + " numIndexDims=" + numIndexDims + " numDataDims=" + numDataDims;
 
       // Recurse on left sub-tree:
-      System.arraycopy(cellMaxPacked, 0, splitPackedValue, 0, packedBytesLength);
+      System.arraycopy(cellMaxPacked, 0, splitPackedValue, 0, packedIndexBytesLength);
       System.arraycopy(splitDimValue.bytes, splitDimValue.offset, splitPackedValue, splitDim*bytesPerDim, bytesPerDim);
       state.index.pushLeft();
       final long leftCost = estimatePointCount(state, cellMinPacked, splitPackedValue);
@@ -645,7 +658,7 @@ public final class BKDReader extends PointValues implements Accountable {
       System.arraycopy(splitPackedValue, splitDim*bytesPerDim, splitDimValue.bytes, splitDimValue.offset, bytesPerDim);
 
       // Recurse on right sub-tree:
-      System.arraycopy(cellMinPacked, 0, splitPackedValue, 0, packedBytesLength);
+      System.arraycopy(cellMinPacked, 0, splitPackedValue, 0, packedIndexBytesLength);
       System.arraycopy(splitDimValue.bytes, splitDimValue.offset, splitPackedValue, splitDim*bytesPerDim, bytesPerDim);
       state.index.pushRight();
       final long rightCost = estimatePointCount(state, splitPackedValue, cellMaxPacked);
@@ -670,8 +683,13 @@ public final class BKDReader extends PointValues implements Accountable {
   }
 
   @Override
-  public int getNumDimensions() {
-    return numDims;
+  public int getNumDataDimensions() {
+    return numDataDims;
+  }
+
+  @Override
+  public int getNumIndexDimensions() {
+    return numIndexDims;
   }
 
   @Override


[2/4] lucene-solr:master: LUCENE-8496: Selective indexing - modify BKDReader/BKDWriter to allow users to select a fewer number of dimensions to be used for creating the index than the total number of dimensions used for field encoding. i.e., dimensions 0

Posted by nk...@apache.org.
http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/util/bkd/BKDWriter.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/util/bkd/BKDWriter.java b/lucene/core/src/java/org/apache/lucene/util/bkd/BKDWriter.java
index 014d470..d7db94b 100644
--- a/lucene/core/src/java/org/apache/lucene/util/bkd/BKDWriter.java
+++ b/lucene/core/src/java/org/apache/lucene/util/bkd/BKDWriter.java
@@ -86,7 +86,8 @@ public class BKDWriter implements Closeable {
   public static final int VERSION_START = 4; // version used by Lucene 7.0
   //public static final int VERSION_CURRENT = VERSION_START;
   public static final int VERSION_LEAF_STORES_BOUNDS = 5;
-  public static final int VERSION_CURRENT = VERSION_LEAF_STORES_BOUNDS;
+  public static final int VERSION_SELECTIVE_INDEXING = 6;
+  public static final int VERSION_CURRENT = VERSION_SELECTIVE_INDEXING;
 
   /** How many bytes each docs takes in the fixed-width offline format */
   private final int bytesPerDoc;
@@ -100,15 +101,21 @@ public class BKDWriter implements Closeable {
   /** Maximum number of dimensions */
   public static final int MAX_DIMS = 8;
 
-  /** How many dimensions we are indexing */
-  protected final int numDims;
+  /** How many dimensions we are storing at the leaf (data) nodes */
+  protected final int numDataDims;
+
+  /** How many dimensions we are indexing in the internal nodes */
+  protected final int numIndexDims;
 
   /** How many bytes each value in each dimension takes. */
   protected final int bytesPerDim;
 
-  /** numDims * bytesPerDim */
+  /** numDataDims * bytesPerDim */
   protected final int packedBytesLength;
 
+  /** numIndexDims * bytesPerDim */
+  protected final int packedIndexBytesLength;
+
   final TrackingDirectoryWrapper tempDir;
   final String tempFileNamePrefix;
   final double maxMBSortInHeap;
@@ -154,37 +161,39 @@ public class BKDWriter implements Closeable {
 
   private final int maxDoc;
 
-  public BKDWriter(int maxDoc, Directory tempDir, String tempFileNamePrefix, int numDims, int bytesPerDim,
+  public BKDWriter(int maxDoc, Directory tempDir, String tempFileNamePrefix, int numDataDims, int numIndexDims, int bytesPerDim,
                    int maxPointsInLeafNode, double maxMBSortInHeap, long totalPointCount, boolean singleValuePerDoc) throws IOException {
-    this(maxDoc, tempDir, tempFileNamePrefix, numDims, bytesPerDim, maxPointsInLeafNode, maxMBSortInHeap, totalPointCount, singleValuePerDoc,
+    this(maxDoc, tempDir, tempFileNamePrefix, numDataDims, numIndexDims, bytesPerDim, maxPointsInLeafNode, maxMBSortInHeap, totalPointCount, singleValuePerDoc,
          totalPointCount > Integer.MAX_VALUE, Math.max(1, (long) maxMBSortInHeap), OfflineSorter.MAX_TEMPFILES);
   }
 
-  protected BKDWriter(int maxDoc, Directory tempDir, String tempFileNamePrefix, int numDims, int bytesPerDim,
+  protected BKDWriter(int maxDoc, Directory tempDir, String tempFileNamePrefix, int numDataDims, int numIndexDims, int bytesPerDim,
                       int maxPointsInLeafNode, double maxMBSortInHeap, long totalPointCount,
                       boolean singleValuePerDoc, boolean longOrds, long offlineSorterBufferMB, int offlineSorterMaxTempFiles) throws IOException {
-    verifyParams(numDims, maxPointsInLeafNode, maxMBSortInHeap, totalPointCount);
+    verifyParams(numDataDims, numIndexDims, maxPointsInLeafNode, maxMBSortInHeap, totalPointCount);
     // We use tracking dir to deal with removing files on exception, so each place that
     // creates temp files doesn't need crazy try/finally/sucess logic:
     this.tempDir = new TrackingDirectoryWrapper(tempDir);
     this.tempFileNamePrefix = tempFileNamePrefix;
     this.maxPointsInLeafNode = maxPointsInLeafNode;
-    this.numDims = numDims;
+    this.numDataDims = numDataDims;
+    this.numIndexDims = numIndexDims;
     this.bytesPerDim = bytesPerDim;
     this.totalPointCount = totalPointCount;
     this.maxDoc = maxDoc;
     this.offlineSorterBufferMB = OfflineSorter.BufferSize.megabytes(offlineSorterBufferMB);
     this.offlineSorterMaxTempFiles = offlineSorterMaxTempFiles;
     docsSeen = new FixedBitSet(maxDoc);
-    packedBytesLength = numDims * bytesPerDim;
+    packedBytesLength = numDataDims * bytesPerDim;
+    packedIndexBytesLength = numIndexDims * bytesPerDim;
 
     scratchDiff = new byte[bytesPerDim];
     scratch1 = new byte[packedBytesLength];
     scratch2 = new byte[packedBytesLength];
-    commonPrefixLengths = new int[numDims];
+    commonPrefixLengths = new int[numDataDims];
 
-    minPackedValue = new byte[packedBytesLength];
-    maxPackedValue = new byte[packedBytesLength];
+    minPackedValue = new byte[packedIndexBytesLength];
+    maxPackedValue = new byte[packedIndexBytesLength];
 
     // If we may have more than 1+Integer.MAX_VALUE values, then we must encode ords with long (8 bytes), else we can use int (4 bytes).
     this.longOrds = longOrds;
@@ -211,7 +220,7 @@ public class BKDWriter implements Closeable {
     // bytes to points here.  Each dimension has its own sorted partition, so
     // we must divide by numDims as wel.
 
-    maxPointsSortInHeap = (int) (0.5 * (maxMBSortInHeap * 1024 * 1024) / (bytesPerDoc * numDims));
+    maxPointsSortInHeap = (int) (0.5 * (maxMBSortInHeap * 1024 * 1024) / (bytesPerDoc * numDataDims));
 
     // Finally, we must be able to hold at least the leaf node in heap during build:
     if (maxPointsSortInHeap < maxPointsInLeafNode) {
@@ -224,11 +233,14 @@ public class BKDWriter implements Closeable {
     this.maxMBSortInHeap = maxMBSortInHeap;
   }
 
-  public static void verifyParams(int numDims, int maxPointsInLeafNode, double maxMBSortInHeap, long totalPointCount) {
+  public static void verifyParams(int numDataDims, int numIndexDims, int maxPointsInLeafNode, double maxMBSortInHeap, long totalPointCount) {
     // We encode dim in a single byte in the splitPackedValues, but we only expose 4 bits for it now, in case we want to use
     // remaining 4 bits for another purpose later
-    if (numDims < 1 || numDims > MAX_DIMS) {
-      throw new IllegalArgumentException("numDims must be 1 .. " + MAX_DIMS + " (got: " + numDims + ")");
+    if (numDataDims < 1 || numDataDims > MAX_DIMS) {
+      throw new IllegalArgumentException("numDataDims must be 1 .. " + MAX_DIMS + " (got: " + numDataDims + ")");
+    }
+    if (numIndexDims < 1 || numIndexDims > numDataDims) {
+      throw new IllegalArgumentException("numIndexDims must be 1 .. " + numDataDims + " (got: " + numIndexDims + ")");
     }
     if (maxPointsInLeafNode <= 0) {
       throw new IllegalArgumentException("maxPointsInLeafNode must be > 0; got " + maxPointsInLeafNode);
@@ -277,10 +289,10 @@ public class BKDWriter implements Closeable {
 
     // TODO: we could specialize for the 1D case:
     if (pointCount == 0) {
-      System.arraycopy(packedValue, 0, minPackedValue, 0, packedBytesLength);
-      System.arraycopy(packedValue, 0, maxPackedValue, 0, packedBytesLength);
+      System.arraycopy(packedValue, 0, minPackedValue, 0, packedIndexBytesLength);
+      System.arraycopy(packedValue, 0, maxPackedValue, 0, packedIndexBytesLength);
     } else {
-      for(int dim=0;dim<numDims;dim++) {
+      for(int dim=0;dim<numIndexDims;dim++) {
         int offset = dim*bytesPerDim;
         if (FutureArrays.compareUnsigned(packedValue, offset, offset + bytesPerDim, minPackedValue, offset, offset + bytesPerDim) < 0) {
           System.arraycopy(packedValue, offset, minPackedValue, offset, bytesPerDim);
@@ -325,8 +337,9 @@ public class BKDWriter implements Closeable {
     public MergeReader(BKDReader bkd, MergeState.DocMap docMap) throws IOException {
       this.bkd = bkd;
       state = new BKDReader.IntersectState(bkd.in.clone(),
-                                           bkd.numDims,
+                                           bkd.numDataDims,
                                            bkd.packedBytesLength,
+                                           bkd.packedIndexBytesLength,
                                            bkd.maxPointsInLeafNode,
                                            null,
                                            null);
@@ -347,7 +360,7 @@ public class BKDWriter implements Closeable {
           docsInBlock = bkd.readDocIDs(state.in, state.in.getFilePointer(), state.scratchDocIDs);
           assert docsInBlock > 0;
           docBlockUpto = 0;
-          bkd.visitDocValues(state.commonPrefixLengths, state.scratchPackedValue1, state.scratchPackedValue2, state.in, state.scratchDocIDs, docsInBlock, new IntersectVisitor() {
+          bkd.visitDocValues(state.commonPrefixLengths, state.scratchDataPackedValue, state.scratchMinIndexPackedValue, state.scratchMaxIndexPackedValue, state.in, state.scratchDocIDs, docsInBlock, new IntersectVisitor() {
             int i = 0;
 
             @Override
@@ -385,7 +398,7 @@ public class BKDWriter implements Closeable {
         if (mappedDocID != -1) {
           // Not deleted!
           docID = mappedDocID;
-          System.arraycopy(packedValues, index * bkd.packedBytesLength, state.scratchPackedValue1, 0, bkd.packedBytesLength);
+          System.arraycopy(packedValues, index * bkd.packedBytesLength, state.scratchDataPackedValue, 0, bkd.packedBytesLength);
           return true;
         }
       }
@@ -404,7 +417,7 @@ public class BKDWriter implements Closeable {
     public boolean lessThan(MergeReader a, MergeReader b) {
       assert a != b;
 
-      int cmp = FutureArrays.compareUnsigned(a.state.scratchPackedValue1, 0, bytesPerDim, b.state.scratchPackedValue1, 0, bytesPerDim);
+      int cmp = FutureArrays.compareUnsigned(a.state.scratchDataPackedValue, 0, bytesPerDim, b.state.scratchDataPackedValue, 0, bytesPerDim);
       if (cmp < 0) {
         return true;
       } else if (cmp > 0) {
@@ -422,7 +435,7 @@ public class BKDWriter implements Closeable {
    *  disk. This method does not use transient disk in order to reorder points.
    */
   public long writeField(IndexOutput out, String fieldName, MutablePointValues reader) throws IOException {
-    if (numDims == 1) {
+    if (numIndexDims == 1) {
       return writeField1Dim(out, fieldName, reader);
     } else {
       return writeFieldNDims(out, fieldName, reader);
@@ -465,7 +478,7 @@ public class BKDWriter implements Closeable {
     Arrays.fill(maxPackedValue, (byte) 0);
     for (int i = 0; i < Math.toIntExact(pointCount); ++i) {
       values.getValue(i, scratchBytesRef1);
-      for(int dim=0;dim<numDims;dim++) {
+      for(int dim=0;dim<numIndexDims;dim++) {
         int offset = dim*bytesPerDim;
         if (FutureArrays.compareUnsigned(scratchBytesRef1.bytes, scratchBytesRef1.offset + offset, scratchBytesRef1.offset + offset + bytesPerDim, minPackedValue, offset, offset + bytesPerDim) < 0) {
           System.arraycopy(scratchBytesRef1.bytes, scratchBytesRef1.offset + offset, minPackedValue, offset, bytesPerDim);
@@ -478,12 +491,12 @@ public class BKDWriter implements Closeable {
       docsSeen.set(values.getDocID(i));
     }
 
-    final int[] parentSplits = new int[numDims];
+    final int[] parentSplits = new int[numIndexDims];
     build(1, numLeaves, values, 0, Math.toIntExact(pointCount), out,
           minPackedValue, maxPackedValue, parentSplits,
           splitPackedValues, leafBlockFPs,
           new int[maxPointsInLeafNode]);
-    assert Arrays.equals(parentSplits, new int[numDims]);
+    assert Arrays.equals(parentSplits, new int[numIndexDims]);
 
     long indexFP = out.getFilePointer();
     writeIndex(out, Math.toIntExact(countPerLeaf), leafBlockFPs, splitPackedValues);
@@ -493,7 +506,7 @@ public class BKDWriter implements Closeable {
   /* In the 1D case, we can simply sort points in ascending order and use the
    * same writing logic as we use at merge time. */
   private long writeField1Dim(IndexOutput out, String fieldName, MutablePointValues reader) throws IOException {
-    MutablePointsReaderUtils.sort(maxDoc, packedBytesLength, reader, 0, Math.toIntExact(reader.size()));
+    MutablePointsReaderUtils.sort(maxDoc, packedIndexBytesLength, reader, 0, Math.toIntExact(reader.size()));
 
     final OneDimensionBKDWriter oneDimWriter = new OneDimensionBKDWriter(out);
 
@@ -546,7 +559,7 @@ public class BKDWriter implements Closeable {
       MergeReader reader = queue.top();
       // System.out.println("iter reader=" + reader);
 
-      oneDimWriter.add(reader.state.scratchPackedValue1, reader.docID);
+      oneDimWriter.add(reader.state.scratchDataPackedValue, reader.docID);
 
       if (reader.next()) {
         queue.updateTop();
@@ -573,8 +586,8 @@ public class BKDWriter implements Closeable {
     private int leafCount;
 
     OneDimensionBKDWriter(IndexOutput out) {
-      if (numDims != 1) {
-        throw new UnsupportedOperationException("numDims must be 1 but got " + numDims);
+      if (numIndexDims != 1) {
+        throw new UnsupportedOperationException("numIndexDims must be 1 but got " + numIndexDims);
       }
       if (pointCount != 0) {
         throw new IllegalStateException("cannot mix add and merge");
@@ -651,9 +664,9 @@ public class BKDWriter implements Closeable {
     private void writeLeafBlock() throws IOException {
       assert leafCount != 0;
       if (valueCount == 0) {
-        System.arraycopy(leafValues, 0, minPackedValue, 0, packedBytesLength);
+        System.arraycopy(leafValues, 0, minPackedValue, 0, packedIndexBytesLength);
       }
-      System.arraycopy(leafValues, (leafCount - 1) * packedBytesLength, maxPackedValue, 0, packedBytesLength);
+      System.arraycopy(leafValues, (leafCount - 1) * packedBytesLength, maxPackedValue, 0, packedIndexBytesLength);
 
       valueCount += leafCount;
 
@@ -828,7 +841,7 @@ public class BKDWriter implements Closeable {
   */
 
   private PointWriter sort(int dim) throws IOException {
-    assert dim >= 0 && dim < numDims;
+    assert dim >= 0 && dim < numDataDims;
 
     if (heapPointWriter != null) {
 
@@ -861,7 +874,7 @@ public class BKDWriter implements Closeable {
       final int offset = bytesPerDim * dim;
 
       Comparator<BytesRef> cmp;
-      if (dim == numDims - 1) {
+      if (dim == numDataDims - 1) {
         // in that case the bytes for the dimension and for the doc id are contiguous,
         // so we don't need a branch
         cmp = new BytesRefComparator(bytesPerDim + Integer.BYTES) {
@@ -946,7 +959,7 @@ public class BKDWriter implements Closeable {
     }
 
     LongBitSet ordBitSet;
-    if (numDims > 1) {
+    if (numDataDims > 1) {
       if (singleValuePerDoc) {
         ordBitSet = new LongBitSet(maxDoc);
       } else {
@@ -981,7 +994,7 @@ public class BKDWriter implements Closeable {
     assert pointCount / numLeaves <= maxPointsInLeafNode: "pointCount=" + pointCount + " numLeaves=" + numLeaves + " maxPointsInLeafNode=" + maxPointsInLeafNode;
 
     // Sort all docs once by each dimension:
-    PathSlice[] sortedPointWriters = new PathSlice[numDims];
+    PathSlice[] sortedPointWriters = new PathSlice[numDataDims];
 
     // This is only used on exception; on normal code paths we close all files we opened:
     List<Closeable> toCloseHeroically = new ArrayList<>();
@@ -989,7 +1002,9 @@ public class BKDWriter implements Closeable {
     boolean success = false;
     try {
       //long t0 = System.nanoTime();
-      for(int dim=0;dim<numDims;dim++) {
+      // even with selective indexing we create the sortedPointWriters so we can compress
+      // the leaf node data by common prefix
+      for(int dim=0;dim<numDataDims;dim++) {
         sortedPointWriters[dim] = new PathSlice(sort(dim), 0, pointCount);
       }
       //long t1 = System.nanoTime();
@@ -1003,7 +1018,7 @@ public class BKDWriter implements Closeable {
         heapPointWriter = null;
       }
 
-      final int[] parentSplits = new int[numDims];
+      final int[] parentSplits = new int[numIndexDims];
       build(1, numLeaves, sortedPointWriters,
             ordBitSet, out,
             minPackedValue, maxPackedValue,
@@ -1011,7 +1026,7 @@ public class BKDWriter implements Closeable {
             splitPackedValues,
             leafBlockFPs,
             toCloseHeroically);
-      assert Arrays.equals(parentSplits, new int[numDims]);
+      assert Arrays.equals(parentSplits, new int[numIndexDims]);
 
       for(PathSlice slice : sortedPointWriters) {
         slice.writer.destroy();
@@ -1046,7 +1061,7 @@ public class BKDWriter implements Closeable {
     // Possibly rotate the leaf block FPs, if the index not fully balanced binary tree (only happens
     // if it was created by OneDimensionBKDWriter).  In this case the leaf nodes may straddle the two bottom
     // levels of the binary tree:
-    if (numDims == 1 && numLeaves > 1) {
+    if (numIndexDims == 1 && numLeaves > 1) {
       int levelCount = 2;
       while (true) {
         if (numLeaves >= levelCount && numLeaves <= 2*levelCount) {
@@ -1072,9 +1087,9 @@ public class BKDWriter implements Closeable {
 
     // This is the "file" we append the byte[] to:
     List<byte[]> blocks = new ArrayList<>();
-    byte[] lastSplitValues = new byte[bytesPerDim * numDims];
+    byte[] lastSplitValues = new byte[bytesPerDim * numIndexDims];
     //System.out.println("\npack index");
-    int totalSize = recursePackIndex(writeBuffer, leafBlockFPs, splitPackedValues, 0l, blocks, 1, lastSplitValues, new boolean[numDims], false);
+    int totalSize = recursePackIndex(writeBuffer, leafBlockFPs, splitPackedValues, 0l, blocks, 1, lastSplitValues, new boolean[numIndexDims], false);
 
     // Compact the byte[] blocks into single byte index:
     byte[] index = new byte[totalSize];
@@ -1126,7 +1141,7 @@ public class BKDWriter implements Closeable {
       if (isLeft == false) {
         leftBlockFP = getLeftMostLeafBlockFP(leafBlockFPs, nodeID);
         long delta = leftBlockFP - minBlockFP;
-        assert nodeID == 1 || delta > 0;
+        assert nodeID == 1 || delta > 0 : "expected nodeID=1 or delta > 0; got nodeID=" + nodeID + " and delta=" + delta;
         writeBuffer.writeVLong(delta);
       } else {
         // The left tree's left most leaf block FP is always the minimal FP:
@@ -1162,7 +1177,7 @@ public class BKDWriter implements Closeable {
       }
 
       // pack the prefix, splitDim and delta first diff byte into a single vInt:
-      int code = (firstDiffByteDelta * (1+bytesPerDim) + prefix) * numDims + splitDim;
+      int code = (firstDiffByteDelta * (1+bytesPerDim) + prefix) * numIndexDims + splitDim;
 
       //System.out.println("  code=" + code);
       //System.out.println("  splitValue=" + new BytesRef(splitPackedValues, address, bytesPerDim));
@@ -1248,14 +1263,15 @@ public class BKDWriter implements Closeable {
   private void writeIndex(IndexOutput out, int countPerLeaf, int numLeaves, byte[] packedIndex) throws IOException {
     
     CodecUtil.writeHeader(out, CODEC_NAME, VERSION_CURRENT);
-    out.writeVInt(numDims);
+    out.writeVInt(numDataDims);
+    out.writeVInt(numIndexDims);
     out.writeVInt(countPerLeaf);
     out.writeVInt(bytesPerDim);
 
     assert numLeaves > 0;
     out.writeVInt(numLeaves);
-    out.writeBytes(minPackedValue, 0, packedBytesLength);
-    out.writeBytes(maxPackedValue, 0, packedBytesLength);
+    out.writeBytes(minPackedValue, 0, packedIndexBytesLength);
+    out.writeBytes(maxPackedValue, 0, packedIndexBytesLength);
 
     out.writeVLong(pointCount);
     out.writeVInt(docsSeen.cardinality());
@@ -1275,7 +1291,7 @@ public class BKDWriter implements Closeable {
       // all values in this block are equal
       out.writeByte((byte) -1);
     } else {
-      if (numDims != 1) {
+      if (numIndexDims != 1) {
         writeActualBounds(out, commonPrefixLengths, count, packedValues);
       }
       assert commonPrefixLengths[sortedDim] < bytesPerDim;
@@ -1298,7 +1314,7 @@ public class BKDWriter implements Closeable {
   }
 
   private void writeActualBounds(DataOutput out, int[] commonPrefixLengths, int count, IntFunction<BytesRef> packedValues) throws IOException {
-    for (int dim = 0; dim < numDims; ++dim) {
+    for (int dim = 0; dim < numIndexDims; ++dim) {
       int commonPrefixLength = commonPrefixLengths[dim];
       int suffixLength = bytesPerDim - commonPrefixLength;
       if (suffixLength > 0) {
@@ -1336,7 +1352,7 @@ public class BKDWriter implements Closeable {
       BytesRef ref = packedValues.apply(i);
       assert ref.length == packedBytesLength;
 
-      for(int dim=0;dim<numDims;dim++) {
+      for(int dim=0;dim<numDataDims;dim++) {
         int prefix = commonPrefixLengths[dim];
         out.writeBytes(ref.bytes, ref.offset + dim*bytesPerDim + prefix, bytesPerDim-prefix);
       }
@@ -1358,7 +1374,7 @@ public class BKDWriter implements Closeable {
   }
 
   private void writeCommonPrefixes(DataOutput out, int[] commonPrefixes, byte[] packedValue) throws IOException {
-    for(int dim=0;dim<numDims;dim++) {
+    for(int dim=0;dim<numDataDims;dim++) {
       out.writeVInt(commonPrefixes[dim]);
       //System.out.println(commonPrefixes[dim] + " of " + bytesPerDim);
       out.writeBytes(packedValue, dim*bytesPerDim, commonPrefixes[dim]);
@@ -1429,7 +1445,7 @@ public class BKDWriter implements Closeable {
       boolean result = reader.next();
       assert result: "rightCount=" + rightCount + " source.count=" + source.count + " source.writer=" + source.writer;
       System.arraycopy(reader.packedValue(), splitDim*bytesPerDim, scratch1, 0, bytesPerDim);
-      if (numDims > 1) {
+      if (numDataDims > 1) {
         assert ordBitSet.get(reader.ord()) == false;
         ordBitSet.set(reader.ord());
         // Subtract 1 from rightCount because we already did the first value above (so we could record the split value):
@@ -1444,7 +1460,7 @@ public class BKDWriter implements Closeable {
 
   /** Called only in assert */
   private boolean valueInBounds(BytesRef packedValue, byte[] minPackedValue, byte[] maxPackedValue) {
-    for(int dim=0;dim<numDims;dim++) {
+    for(int dim=0;dim<numIndexDims;dim++) {
       int offset = bytesPerDim*dim;
       if (FutureArrays.compareUnsigned(packedValue.bytes, packedValue.offset + offset, packedValue.offset + offset + bytesPerDim, minPackedValue, offset, offset + bytesPerDim) < 0) {
         return false;
@@ -1472,7 +1488,7 @@ public class BKDWriter implements Closeable {
     for (int numSplits : parentSplits) {
       maxNumSplits = Math.max(maxNumSplits, numSplits);
     }
-    for (int dim = 0; dim < numDims; ++dim) {
+    for (int dim = 0; dim < numIndexDims; ++dim) {
       final int offset = dim * bytesPerDim;
       if (parentSplits[dim] < maxNumSplits / 2 &&
           FutureArrays.compareUnsigned(minPackedValue, offset, offset + bytesPerDim, maxPackedValue, offset, offset + bytesPerDim) != 0) {
@@ -1482,7 +1498,7 @@ public class BKDWriter implements Closeable {
 
     // Find which dim has the largest span so we can split on it:
     int splitDim = -1;
-    for(int dim=0;dim<numDims;dim++) {
+    for(int dim=0;dim<numIndexDims;dim++) {
       NumericUtils.subtract(bytesPerDim, dim, maxPackedValue, minPackedValue, scratchDiff);
       if (splitDim == -1 || FutureArrays.compareUnsigned(scratchDiff, 0, bytesPerDim, scratch1, 0, bytesPerDim) > 0) {
         System.arraycopy(scratchDiff, 0, scratch1, 0, bytesPerDim);
@@ -1532,7 +1548,7 @@ public class BKDWriter implements Closeable {
       reader.getValue(from, scratchBytesRef1);
       for (int i = from + 1; i < to; ++i) {
         reader.getValue(i, scratchBytesRef2);
-        for (int dim=0;dim<numDims;dim++) {
+        for (int dim=0;dim<numDataDims;dim++) {
           final int offset = dim * bytesPerDim;
           for(int j=0;j<commonPrefixLengths[dim];j++) {
             if (scratchBytesRef1.bytes[scratchBytesRef1.offset+offset+j] != scratchBytesRef2.bytes[scratchBytesRef2.offset+offset+j]) {
@@ -1544,14 +1560,14 @@ public class BKDWriter implements Closeable {
       }
 
       // Find the dimension that has the least number of unique bytes at commonPrefixLengths[dim]
-      FixedBitSet[] usedBytes = new FixedBitSet[numDims];
-      for (int dim = 0; dim < numDims; ++dim) {
+      FixedBitSet[] usedBytes = new FixedBitSet[numDataDims];
+      for (int dim = 0; dim < numDataDims; ++dim) {
         if (commonPrefixLengths[dim] < bytesPerDim) {
           usedBytes[dim] = new FixedBitSet(256);
         }
       }
       for (int i = from + 1; i < to; ++i) {
-        for (int dim=0;dim<numDims;dim++) {
+        for (int dim=0;dim<numDataDims;dim++) {
           if (usedBytes[dim] != null) {
             byte b = reader.getByteAt(i, dim * bytesPerDim + commonPrefixLengths[dim]);
             usedBytes[dim].set(Byte.toUnsignedInt(b));
@@ -1560,7 +1576,7 @@ public class BKDWriter implements Closeable {
       }
       int sortedDim = 0;
       int sortedDimCardinality = Integer.MAX_VALUE;
-      for (int dim = 0; dim < numDims; ++dim) {
+      for (int dim = 0; dim < numDataDims; ++dim) {
         if (usedBytes[dim] != null) {
           final int cardinality = usedBytes[dim].cardinality();
           if (cardinality < sortedDimCardinality) {
@@ -1631,8 +1647,8 @@ public class BKDWriter implements Closeable {
       reader.getValue(mid, scratchBytesRef1);
       System.arraycopy(scratchBytesRef1.bytes, scratchBytesRef1.offset + splitDim * bytesPerDim, splitPackedValues, address + 1, bytesPerDim);
 
-      byte[] minSplitPackedValue = ArrayUtil.copyOfSubArray(minPackedValue, 0, packedBytesLength);
-      byte[] maxSplitPackedValue = ArrayUtil.copyOfSubArray(maxPackedValue, 0, packedBytesLength);
+      byte[] minSplitPackedValue = ArrayUtil.copyOfSubArray(minPackedValue, 0, packedIndexBytesLength);
+      byte[] maxSplitPackedValue = ArrayUtil.copyOfSubArray(maxPackedValue, 0, packedIndexBytesLength);
       System.arraycopy(scratchBytesRef1.bytes, scratchBytesRef1.offset + splitDim * bytesPerDim,
           minSplitPackedValue, splitDim * bytesPerDim, bytesPerDim);
       System.arraycopy(scratchBytesRef1.bytes, scratchBytesRef1.offset + splitDim * bytesPerDim,
@@ -1666,7 +1682,7 @@ public class BKDWriter implements Closeable {
       assert slice.count == slices[0].count;
     }
     
-    if (numDims == 1 && slices[0].writer instanceof OfflinePointWriter && slices[0].count <= maxPointsSortInHeap) {
+    if (numDataDims == 1 && slices[0].writer instanceof OfflinePointWriter && slices[0].count <= maxPointsSortInHeap) {
       // Special case for 1D, to cutover to heap once we recurse deeply enough:
       slices[0] = switchToHeap(slices[0], toCloseHeroically);
     }
@@ -1679,7 +1695,7 @@ public class BKDWriter implements Closeable {
       int sortedDim = 0;
       int sortedDimCardinality = Integer.MAX_VALUE;
 
-      for (int dim=0;dim<numDims;dim++) {
+      for (int dim=0;dim<numDataDims;dim++) {
         if (slices[dim].writer instanceof HeapPointWriter == false) {
           // Adversarial cases can cause this, e.g. very lopsided data, all equal points, such that we started
           // offline, but then kept splitting only in one dimension, and so never had to rewrite into heap writer
@@ -1767,7 +1783,7 @@ public class BKDWriter implements Closeable {
       // Inner node: partition/recurse
 
       int splitDim;
-      if (numDims > 1) {
+      if (numIndexDims > 1) {
         splitDim = split(minPackedValue, maxPackedValue, parentSplits);
       } else {
         splitDim = 0;
@@ -1788,24 +1804,24 @@ public class BKDWriter implements Closeable {
 
       // Partition all PathSlice that are not the split dim into sorted left and right sets, so we can recurse:
 
-      PathSlice[] leftSlices = new PathSlice[numDims];
-      PathSlice[] rightSlices = new PathSlice[numDims];
+      PathSlice[] leftSlices = new PathSlice[numDataDims];
+      PathSlice[] rightSlices = new PathSlice[numDataDims];
 
-      byte[] minSplitPackedValue = new byte[packedBytesLength];
-      System.arraycopy(minPackedValue, 0, minSplitPackedValue, 0, packedBytesLength);
+      byte[] minSplitPackedValue = new byte[packedIndexBytesLength];
+      System.arraycopy(minPackedValue, 0, minSplitPackedValue, 0, packedIndexBytesLength);
 
-      byte[] maxSplitPackedValue = new byte[packedBytesLength];
-      System.arraycopy(maxPackedValue, 0, maxSplitPackedValue, 0, packedBytesLength);
+      byte[] maxSplitPackedValue = new byte[packedIndexBytesLength];
+      System.arraycopy(maxPackedValue, 0, maxSplitPackedValue, 0, packedIndexBytesLength);
 
       // When we are on this dim, below, we clear the ordBitSet:
       int dimToClear;
-      if (numDims - 1 == splitDim) {
-        dimToClear = numDims - 2;
+      if (numDataDims - 1 == splitDim) {
+        dimToClear = numDataDims - 2;
       } else {
-        dimToClear = numDims - 1;
+        dimToClear = numDataDims - 1;
       }
 
-      for(int dim=0;dim<numDims;dim++) {
+      for(int dim=0;dim<numDataDims;dim++) {
 
         if (dim == splitDim) {
           // No need to partition on this dim since it's a simple slice of the incoming already sorted slice, and we
@@ -1842,7 +1858,7 @@ public class BKDWriter implements Closeable {
             ordBitSet, out,
             minPackedValue, maxSplitPackedValue, parentSplits,
             splitPackedValues, leafBlockFPs, toCloseHeroically);
-      for(int dim=0;dim<numDims;dim++) {
+      for(int dim=0;dim<numDataDims;dim++) {
         // Don't destroy the dim we split on because we just re-used what our caller above gave us for that dim:
         if (dim != splitDim) {
           leftSlices[dim].writer.destroy();
@@ -1855,7 +1871,7 @@ public class BKDWriter implements Closeable {
             ordBitSet, out,
             minSplitPackedValue, maxPackedValue, parentSplits,
             splitPackedValues, leafBlockFPs, toCloseHeroically);
-      for(int dim=0;dim<numDims;dim++) {
+      for(int dim=0;dim<numDataDims;dim++) {
         // Don't destroy the dim we split on because we just re-used what our caller above gave us for that dim:
         if (dim != splitDim) {
           rightSlices[dim].writer.destroy();

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/test/org/apache/lucene/document/TestFieldType.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/test/org/apache/lucene/document/TestFieldType.java b/lucene/core/src/test/org/apache/lucene/document/TestFieldType.java
index 9214cb9..b770e62 100644
--- a/lucene/core/src/test/org/apache/lucene/document/TestFieldType.java
+++ b/lucene/core/src/test/org/apache/lucene/document/TestFieldType.java
@@ -69,7 +69,7 @@ public class TestFieldType extends LuceneTestCase {
   public void testPointsToString() {
     FieldType ft = new FieldType();
     ft.setDimensions(1, Integer.BYTES);
-    assertEquals("pointDimensionCount=1,pointNumBytes=4", ft.toString());
+    assertEquals("pointDataDimensionCount=1,pointIndexDimensionCount=1,pointNumBytes=4", ft.toString());
   }
 
   private static Object randomValue(Class<?> clazz) {
@@ -85,15 +85,20 @@ public class TestFieldType extends LuceneTestCase {
 
   private static FieldType randomFieldType() throws Exception {
     // setDimensions handled special as values must be in-bounds.
-    Method setDimensionsMethod = FieldType.class.getMethod("setDimensions", int.class, int.class);
+    Method setDimensionsMethodA = FieldType.class.getMethod("setDimensions", int.class, int.class);
+    Method setDimensionsMethodB = FieldType.class.getMethod("setDimensions", int.class, int.class, int.class);
     FieldType ft = new FieldType();
     for (Method method : FieldType.class.getMethods()) {
       if (method.getName().startsWith("set")) {
         final Class<?>[] parameterTypes = method.getParameterTypes();
         final Object[] args = new Object[parameterTypes.length];
-        if (method.equals(setDimensionsMethod)) {
+        if (method.equals(setDimensionsMethodA)) {
           args[0] = 1 + random().nextInt(PointValues.MAX_DIMENSIONS);
           args[1] = 1 + random().nextInt(PointValues.MAX_NUM_BYTES);
+        } else if (method.equals(setDimensionsMethodB)) {
+          args[0] = 1 + random().nextInt(PointValues.MAX_DIMENSIONS);
+          args[1] = 1 + random().nextInt((Integer)args[0]);
+          args[2] = 1 + random().nextInt(PointValues.MAX_NUM_BYTES);
         } else {
           for (int i = 0; i < args.length; ++i) {
             args[i] = randomValue(parameterTypes[i]);

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/test/org/apache/lucene/index/TestIndexableField.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/test/org/apache/lucene/index/TestIndexableField.java b/lucene/core/src/test/org/apache/lucene/index/TestIndexableField.java
index 25b48c8..1091b24 100644
--- a/lucene/core/src/test/org/apache/lucene/index/TestIndexableField.java
+++ b/lucene/core/src/test/org/apache/lucene/index/TestIndexableField.java
@@ -91,7 +91,12 @@ public class TestIndexableField extends LuceneTestCase {
       }
 
       @Override
-      public int pointDimensionCount() {
+      public int pointDataDimensionCount() {
+        return 0;
+      }
+
+      @Override
+      public int pointIndexDimensionCount() {
         return 0;
       }
 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/test/org/apache/lucene/index/TestPendingSoftDeletes.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/test/org/apache/lucene/index/TestPendingSoftDeletes.java b/lucene/core/src/test/org/apache/lucene/index/TestPendingSoftDeletes.java
index 7d03c7e..c882a3b 100644
--- a/lucene/core/src/test/org/apache/lucene/index/TestPendingSoftDeletes.java
+++ b/lucene/core/src/test/org/apache/lucene/index/TestPendingSoftDeletes.java
@@ -164,7 +164,7 @@ public class TestPendingSoftDeletes extends TestPendingDeletes {
     deletes.onNewReader(segmentReader, commitInfo);
     reader.close();
     writer.close();
-    FieldInfo fieldInfo = new FieldInfo("_soft_deletes", 1, false, false, false, IndexOptions.NONE, DocValuesType.NUMERIC, 0, Collections.emptyMap(), 0, 0, true);
+    FieldInfo fieldInfo = new FieldInfo("_soft_deletes", 1, false, false, false, IndexOptions.NONE, DocValuesType.NUMERIC, 0, Collections.emptyMap(), 0, 0, 0, true);
     List<Integer> docsDeleted = Arrays.asList(1, 3, 7, 8, DocIdSetIterator.NO_MORE_DOCS);
     List<DocValuesFieldUpdates> updates = Arrays.asList(singleUpdate(docsDeleted, 10, true));
     for (DocValuesFieldUpdates update : updates) {
@@ -185,7 +185,7 @@ public class TestPendingSoftDeletes extends TestPendingDeletes {
 
     docsDeleted = Arrays.asList(1, 2, DocIdSetIterator.NO_MORE_DOCS);
     updates = Arrays.asList(singleUpdate(docsDeleted, 10, true));
-    fieldInfo = new FieldInfo("_soft_deletes", 1, false, false, false, IndexOptions.NONE, DocValuesType.NUMERIC, 1, Collections.emptyMap(), 0, 0, true);
+    fieldInfo = new FieldInfo("_soft_deletes", 1, false, false, false, IndexOptions.NONE, DocValuesType.NUMERIC, 1, Collections.emptyMap(), 0, 0, 0, true);
     for (DocValuesFieldUpdates update : updates) {
       deletes.onDocValuesUpdate(fieldInfo, update.iterator());
     }
@@ -228,7 +228,7 @@ public class TestPendingSoftDeletes extends TestPendingDeletes {
     SegmentCommitInfo segmentInfo = segmentReader.getSegmentInfo();
     PendingDeletes deletes = newPendingDeletes(segmentInfo);
     deletes.onNewReader(segmentReader, segmentInfo);
-    FieldInfo fieldInfo = new FieldInfo("_soft_deletes", 1, false, false, false, IndexOptions.NONE, DocValuesType.NUMERIC, segmentInfo.getNextDocValuesGen(), Collections.emptyMap(), 0, 0, true);
+    FieldInfo fieldInfo = new FieldInfo("_soft_deletes", 1, false, false, false, IndexOptions.NONE, DocValuesType.NUMERIC, segmentInfo.getNextDocValuesGen(), Collections.emptyMap(), 0, 0, 0, true);
     List<Integer> docsDeleted = Arrays.asList(1, DocIdSetIterator.NO_MORE_DOCS);
     List<DocValuesFieldUpdates> updates = Arrays.asList(singleUpdate(docsDeleted, 3, true));
     for (DocValuesFieldUpdates update : updates) {
@@ -276,7 +276,7 @@ public class TestPendingSoftDeletes extends TestPendingDeletes {
     SegmentCommitInfo segmentInfo = segmentReader.getSegmentInfo();
     PendingDeletes deletes = newPendingDeletes(segmentInfo);
     deletes.onNewReader(segmentReader, segmentInfo);
-    FieldInfo fieldInfo = new FieldInfo("_soft_deletes", 1, false, false, false, IndexOptions.NONE, DocValuesType.NUMERIC, segmentInfo.getNextDocValuesGen(), Collections.emptyMap(), 0, 0, true);
+    FieldInfo fieldInfo = new FieldInfo("_soft_deletes", 1, false, false, false, IndexOptions.NONE, DocValuesType.NUMERIC, segmentInfo.getNextDocValuesGen(), Collections.emptyMap(), 0, 0, 0, true);
     List<DocValuesFieldUpdates> updates = Arrays.asList(singleUpdate(Arrays.asList(0, 1, DocIdSetIterator.NO_MORE_DOCS), 3, false));
     for (DocValuesFieldUpdates update : updates) {
       deletes.onDocValuesUpdate(fieldInfo, update.iterator());
@@ -295,7 +295,7 @@ public class TestPendingSoftDeletes extends TestPendingDeletes {
     assertEquals(0, deletes.numPendingDeletes());
 
     segmentInfo.advanceDocValuesGen();
-    fieldInfo = new FieldInfo("_soft_deletes", 1, false, false, false, IndexOptions.NONE, DocValuesType.NUMERIC, segmentInfo.getNextDocValuesGen(), Collections.emptyMap(), 0, 0, true);
+    fieldInfo = new FieldInfo("_soft_deletes", 1, false, false, false, IndexOptions.NONE, DocValuesType.NUMERIC, segmentInfo.getNextDocValuesGen(), Collections.emptyMap(), 0, 0, 0, true);
     updates = Arrays.asList(singleUpdate(Arrays.asList(1, DocIdSetIterator.NO_MORE_DOCS), 3, true));
     for (DocValuesFieldUpdates update : updates) {
       deletes.onDocValuesUpdate(fieldInfo, update.iterator());

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/test/org/apache/lucene/index/TestPointValues.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/test/org/apache/lucene/index/TestPointValues.java b/lucene/core/src/test/org/apache/lucene/index/TestPointValues.java
index 1ef7abc..ae8605d 100644
--- a/lucene/core/src/test/org/apache/lucene/index/TestPointValues.java
+++ b/lucene/core/src/test/org/apache/lucene/index/TestPointValues.java
@@ -73,7 +73,7 @@ public class TestPointValues extends LuceneTestCase {
     IllegalArgumentException expected = expectThrows(IllegalArgumentException.class, () -> {
       w.addDocument(doc);
     });
-    assertEquals("cannot change point dimension count from 1 to 2 for field=\"dim\"", expected.getMessage());
+    assertEquals("cannot change point data dimension count from 1 to 2 for field=\"dim\"", expected.getMessage());
     w.close();
     dir.close();
   }
@@ -91,7 +91,7 @@ public class TestPointValues extends LuceneTestCase {
     IllegalArgumentException expected = expectThrows(IllegalArgumentException.class, () -> {
       w.addDocument(doc2);
     });
-    assertEquals("cannot change point dimension count from 1 to 2 for field=\"dim\"", expected.getMessage());
+    assertEquals("cannot change point data dimension count from 1 to 2 for field=\"dim\"", expected.getMessage());
 
     w.close();
     dir.close();
@@ -111,7 +111,7 @@ public class TestPointValues extends LuceneTestCase {
     IllegalArgumentException expected = expectThrows(IllegalArgumentException.class, () -> {
       w.addDocument(doc2);
     });
-    assertEquals("cannot change point dimension count from 1 to 2 for field=\"dim\"", expected.getMessage());
+    assertEquals("cannot change point data dimension count from 1 to 2 for field=\"dim\"", expected.getMessage());
 
     w.close();
     dir.close();
@@ -133,7 +133,7 @@ public class TestPointValues extends LuceneTestCase {
     IllegalArgumentException expected = expectThrows(IllegalArgumentException.class, () -> {
       w2.addDocument(doc2);
     });
-    assertEquals("cannot change point dimension count from 1 to 2 for field=\"dim\"", expected.getMessage());
+    assertEquals("cannot change point data dimension count from 1 to 2 for field=\"dim\"", expected.getMessage());
 
     w2.close();
     dir.close();
@@ -156,7 +156,7 @@ public class TestPointValues extends LuceneTestCase {
     IllegalArgumentException expected = expectThrows(IllegalArgumentException.class, () -> {
       w2.addIndexes(new Directory[] {dir});
     });
-    assertEquals("cannot change point dimension count from 2 to 1 for field=\"dim\"", expected.getMessage());
+    assertEquals("cannot change point data dimension count from 2 to 1 for field=\"dim\"", expected.getMessage());
 
     IOUtils.close(w2, dir, dir2);
   }
@@ -179,7 +179,7 @@ public class TestPointValues extends LuceneTestCase {
     IllegalArgumentException expected = expectThrows(IllegalArgumentException.class, () -> {
         w2.addIndexes(new CodecReader[] {(CodecReader) getOnlyLeafReader(r)});
     });
-    assertEquals("cannot change point dimension count from 2 to 1 for field=\"dim\"", expected.getMessage());
+    assertEquals("cannot change point data dimension count from 2 to 1 for field=\"dim\"", expected.getMessage());
 
     IOUtils.close(r, w2, dir, dir2);
   }
@@ -203,7 +203,7 @@ public class TestPointValues extends LuceneTestCase {
     IllegalArgumentException expected = expectThrows(IllegalArgumentException.class, () -> {
       TestUtil.addIndexesSlowly(w2, r);
     });
-    assertEquals("cannot change point dimension count from 2 to 1 for field=\"dim\"", expected.getMessage());
+    assertEquals("cannot change point data dimension count from 2 to 1 for field=\"dim\"", expected.getMessage());
 
     IOUtils.close(r, w2, dir, dir2);
   }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/test/org/apache/lucene/search/TestPointQueries.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/test/org/apache/lucene/search/TestPointQueries.java b/lucene/core/src/test/org/apache/lucene/search/TestPointQueries.java
index f76b973..90df7c3 100644
--- a/lucene/core/src/test/org/apache/lucene/search/TestPointQueries.java
+++ b/lucene/core/src/test/org/apache/lucene/search/TestPointQueries.java
@@ -1095,7 +1095,7 @@ public class TestPointQueries extends LuceneTestCase {
     IllegalArgumentException expected = expectThrows(IllegalArgumentException.class, () -> {
       s.count(BinaryPoint.newRangeQuery("value", point, point));
     });
-    assertEquals("field=\"value\" was indexed with numDims=1 but this query has numDims=2", expected.getMessage());
+    assertEquals("field=\"value\" was indexed with numIndexDimensions=1 but this query has numDims=2", expected.getMessage());
 
     IOUtils.close(r, w, dir);
   }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/test/org/apache/lucene/util/TestDocIdSetBuilder.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/test/org/apache/lucene/util/TestDocIdSetBuilder.java b/lucene/core/src/test/org/apache/lucene/util/TestDocIdSetBuilder.java
index f87a73a..a51b161 100644
--- a/lucene/core/src/test/org/apache/lucene/util/TestDocIdSetBuilder.java
+++ b/lucene/core/src/test/org/apache/lucene/util/TestDocIdSetBuilder.java
@@ -327,7 +327,12 @@ public class TestDocIdSetBuilder extends LuceneTestCase {
     }
 
     @Override
-    public int getNumDimensions() throws IOException {
+    public int getNumDataDimensions() throws IOException {
+      throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public int getNumIndexDimensions() throws IOException {
       throw new UnsupportedOperationException();
     }
 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/test/org/apache/lucene/util/bkd/Test2BBKDPoints.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/test/org/apache/lucene/util/bkd/Test2BBKDPoints.java b/lucene/core/src/test/org/apache/lucene/util/bkd/Test2BBKDPoints.java
index e30168c..0d57bf8 100644
--- a/lucene/core/src/test/org/apache/lucene/util/bkd/Test2BBKDPoints.java
+++ b/lucene/core/src/test/org/apache/lucene/util/bkd/Test2BBKDPoints.java
@@ -41,7 +41,7 @@ public class Test2BBKDPoints extends LuceneTestCase {
 
     final int numDocs = (Integer.MAX_VALUE / 26) + 100;
 
-    BKDWriter w = new BKDWriter(numDocs, dir, "_0", 1, Long.BYTES,
+    BKDWriter w = new BKDWriter(numDocs, dir, "_0", 1, 1, Long.BYTES,
                                 BKDWriter.DEFAULT_MAX_POINTS_IN_LEAF_NODE, BKDWriter.DEFAULT_MAX_MB_SORT_IN_HEAP, 26L * numDocs, false);
     int counter = 0;
     byte[] packedBytes = new byte[Long.BYTES];
@@ -78,7 +78,7 @@ public class Test2BBKDPoints extends LuceneTestCase {
 
     final int numDocs = (Integer.MAX_VALUE / 26) + 100;
 
-    BKDWriter w = new BKDWriter(numDocs, dir, "_0", 2, Long.BYTES,
+    BKDWriter w = new BKDWriter(numDocs, dir, "_0", 2, 2, Long.BYTES,
                                 BKDWriter.DEFAULT_MAX_POINTS_IN_LEAF_NODE, BKDWriter.DEFAULT_MAX_MB_SORT_IN_HEAP, 26L * numDocs, false);
     int counter = 0;
     byte[] packedBytes = new byte[2*Long.BYTES];

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/test/org/apache/lucene/util/bkd/TestBKD.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/test/org/apache/lucene/util/bkd/TestBKD.java b/lucene/core/src/test/org/apache/lucene/util/bkd/TestBKD.java
index cbd4d37..d75d785 100644
--- a/lucene/core/src/test/org/apache/lucene/util/bkd/TestBKD.java
+++ b/lucene/core/src/test/org/apache/lucene/util/bkd/TestBKD.java
@@ -48,7 +48,7 @@ public class TestBKD extends LuceneTestCase {
 
   public void testBasicInts1D() throws Exception {
     try (Directory dir = getDirectory(100)) {
-      BKDWriter w = new BKDWriter(100, dir, "tmp", 1, 4, 2, 1.0f, 100, true);
+      BKDWriter w = new BKDWriter(100, dir, "tmp", 1, 1, 4, 2, 1.0f, 100, true);
       byte[] scratch = new byte[4];
       for(int docID=0;docID<100;docID++) {
         NumericUtils.intToSortableBytes(docID, scratch, 0);
@@ -121,12 +121,13 @@ public class TestBKD extends LuceneTestCase {
     int numDocs = atLeast(1000);
     try (Directory dir = getDirectory(numDocs)) {
       int numDims = TestUtil.nextInt(random(), 1, 5);
+      int numIndexDims = TestUtil.nextInt(random(), 1, numDims);
       int maxPointsInLeafNode = TestUtil.nextInt(random(), 50, 100);
       float maxMB = (float) 3.0 + (3*random().nextFloat());
-      BKDWriter w = new BKDWriter(numDocs, dir, "tmp", numDims, 4, maxPointsInLeafNode, maxMB, numDocs, true);
+      BKDWriter w = new BKDWriter(numDocs, dir, "tmp", numDims, numIndexDims, 4, maxPointsInLeafNode, maxMB, numDocs, true);
 
       if (VERBOSE) {
-        System.out.println("TEST: numDims=" + numDims + " numDocs=" + numDocs);
+        System.out.println("TEST: numDims=" + numDims + " numIndexDims=" + numIndexDims + " numDocs=" + numDocs);
       }
       int[][] docs = new int[numDocs][];
       byte[] scratch = new byte[4*numDims];
@@ -167,7 +168,7 @@ public class TestBKD extends LuceneTestCase {
 
         byte[] minPackedValue = r.getMinPackedValue();
         byte[] maxPackedValue = r.getMaxPackedValue();
-        for(int dim=0;dim<numDims;dim++) {
+        for(int dim=0;dim<numIndexDims;dim++) {
           assertEquals(minValue[dim], NumericUtils.sortableBytesToInt(minPackedValue, dim * Integer.BYTES));
           assertEquals(maxValue[dim], NumericUtils.sortableBytesToInt(maxPackedValue, dim * Integer.BYTES));
         }
@@ -181,7 +182,7 @@ public class TestBKD extends LuceneTestCase {
           // Random N dims rect query:
           int[] queryMin = new int[numDims];
           int[] queryMax = new int[numDims];    
-          for(int dim=0;dim<numDims;dim++) {
+          for(int dim=0;dim<numIndexDims;dim++) {
             queryMin[dim] = random().nextInt();
             queryMax[dim] = random().nextInt();
             if (queryMin[dim] > queryMax[dim]) {
@@ -202,7 +203,7 @@ public class TestBKD extends LuceneTestCase {
             @Override
             public void visit(int docID, byte[] packedValue) {
               //System.out.println("visit check docID=" + docID);
-              for(int dim=0;dim<numDims;dim++) {
+              for(int dim=0;dim<numIndexDims;dim++) {
                 int x = NumericUtils.sortableBytesToInt(packedValue, dim * Integer.BYTES);
                 if (x < queryMin[dim] || x > queryMax[dim]) {
                   //System.out.println("  no");
@@ -217,7 +218,7 @@ public class TestBKD extends LuceneTestCase {
             @Override
             public Relation compare(byte[] minPacked, byte[] maxPacked) {
               boolean crosses = false;
-              for(int dim=0;dim<numDims;dim++) {
+              for(int dim=0;dim<numIndexDims;dim++) {
                 int min = NumericUtils.sortableBytesToInt(minPacked, dim * Integer.BYTES);
                 int max = NumericUtils.sortableBytesToInt(maxPacked, dim * Integer.BYTES);
                 assert max >= min;
@@ -240,7 +241,7 @@ public class TestBKD extends LuceneTestCase {
           for(int docID=0;docID<numDocs;docID++) {
             int[] docValues = docs[docID];
             boolean expected = true;
-            for(int dim=0;dim<numDims;dim++) {
+            for(int dim=0;dim<numIndexDims;dim++) {
               int x = docValues[dim];
               if (x < queryMin[dim] || x > queryMax[dim]) {
                 expected = false;
@@ -264,7 +265,7 @@ public class TestBKD extends LuceneTestCase {
       int numDims = TestUtil.nextInt(random(), 1, 5);
       int maxPointsInLeafNode = TestUtil.nextInt(random(), 50, 100);
       float maxMB = (float) 3.0 + (3*random().nextFloat());
-      BKDWriter w = new BKDWriter(numDocs, dir, "tmp", numDims, numBytesPerDim, maxPointsInLeafNode, maxMB, numDocs, true);
+      BKDWriter w = new BKDWriter(numDocs, dir, "tmp", numDims, numDims, numBytesPerDim, maxPointsInLeafNode, maxMB, numDocs, true);
       BigInteger[][] docs = new BigInteger[numDocs][];
 
       byte[] scratch = new byte[numBytesPerDim*numDims];
@@ -380,13 +381,14 @@ public class TestBKD extends LuceneTestCase {
   public void testWithExceptions() throws Exception {
     int numDocs = atLeast(10000);
     int numBytesPerDim = TestUtil.nextInt(random(), 2, 30);
-    int numDims = TestUtil.nextInt(random(), 1, 5);
+    int numDataDims = TestUtil.nextInt(random(), 1, 5);
+    int numIndexDims = TestUtil.nextInt(random(), 1, numDataDims);
 
     byte[][][] docValues = new byte[numDocs][][];
 
     for(int docID=0;docID<numDocs;docID++) {
-      byte[][] values = new byte[numDims][];
-      for(int dim=0;dim<numDims;dim++) {
+      byte[][] values = new byte[numDataDims][];
+      for(int dim=0;dim<numDataDims;dim++) {
         values[dim] = new byte[numBytesPerDim];
         random().nextBytes(values[dim]);
       }
@@ -401,7 +403,7 @@ public class TestBKD extends LuceneTestCase {
       try {
         dir.setRandomIOExceptionRate(0.05);
         dir.setRandomIOExceptionRateOnOpen(0.05);
-        verify(dir, docValues, null, numDims, numBytesPerDim, 50, maxMBHeap);
+        verify(dir, docValues, null, numDataDims, numIndexDims, numBytesPerDim, 50, maxMBHeap);
       } catch (IllegalArgumentException iae) {
         // This just means we got a too-small maxMB for the maxPointsInLeafNode; just retry w/ more heap
         assertTrue(iae.getMessage().contains("either increase maxMBSortInHeap or decrease maxPointsInLeafNode"));
@@ -439,7 +441,7 @@ public class TestBKD extends LuceneTestCase {
   public void testTooLittleHeap() throws Exception { 
     try (Directory dir = getDirectory(0)) {
       IllegalArgumentException expected = expectThrows(IllegalArgumentException.class, () -> {
-        new BKDWriter(1, dir, "bkd", 1, 16, 1000000, 0.001, 0, true);
+        new BKDWriter(1, dir, "bkd", 1, 1, 16, 1000000, 0.001, 0, true);
       });
       assertTrue(expected.getMessage().contains("either increase maxMBSortInHeap or decrease maxPointsInLeafNode"));
     }
@@ -449,33 +451,35 @@ public class TestBKD extends LuceneTestCase {
     int numDocs = TestUtil.nextInt(random(), count, count*2);
     int numBytesPerDim = TestUtil.nextInt(random(), 2, 30);
 
-    int numDims = TestUtil.nextInt(random(), 1, 5);
+    int numDataDims = TestUtil.nextInt(random(), 1, 5);
+    int numIndexDims = TestUtil.nextInt(random(), 1, numDataDims);
 
     byte[][][] docValues = new byte[numDocs][][];
 
     for(int docID=0;docID<numDocs;docID++) {
-      byte[][] values = new byte[numDims][];
-      for(int dim=0;dim<numDims;dim++) {
+      byte[][] values = new byte[numDataDims][];
+      for(int dim=0;dim<numDataDims;dim++) {
         values[dim] = new byte[numBytesPerDim];
         random().nextBytes(values[dim]);
       }
       docValues[docID] = values;
     }
 
-    verify(docValues, null, numDims, numBytesPerDim);
+    verify(docValues, null, numDataDims, numIndexDims, numBytesPerDim);
   }
 
   public void testAllEqual() throws Exception {
     int numBytesPerDim = TestUtil.nextInt(random(), 2, 30);
-    int numDims = TestUtil.nextInt(random(), 1, 5);
+    int numDataDims = TestUtil.nextInt(random(), 1, 5);
+    int numIndexDims = TestUtil.nextInt(random(), 1, numDataDims);
 
     int numDocs = atLeast(1000);
     byte[][][] docValues = new byte[numDocs][][];
 
     for(int docID=0;docID<numDocs;docID++) {
       if (docID == 0) {
-        byte[][] values = new byte[numDims][];
-        for(int dim=0;dim<numDims;dim++) {
+        byte[][] values = new byte[numDataDims][];
+        for(int dim=0;dim<numDataDims;dim++) {
           values[dim] = new byte[numBytesPerDim];
           random().nextBytes(values[dim]);
         }
@@ -485,20 +489,21 @@ public class TestBKD extends LuceneTestCase {
       }
     }
 
-    verify(docValues, null, numDims, numBytesPerDim);
+    verify(docValues, null, numDataDims, numIndexDims, numBytesPerDim);
   }
 
   public void testOneDimEqual() throws Exception {
     int numBytesPerDim = TestUtil.nextInt(random(), 2, 30);
-    int numDims = TestUtil.nextInt(random(), 1, 5);
+    int numDataDims = TestUtil.nextInt(random(), 1, 5);
+    int numIndexDims = TestUtil.nextInt(random(), 1, numDataDims);
 
     int numDocs = atLeast(1000);
-    int theEqualDim = random().nextInt(numDims);
+    int theEqualDim = random().nextInt(numDataDims);
     byte[][][] docValues = new byte[numDocs][][];
 
     for(int docID=0;docID<numDocs;docID++) {
-      byte[][] values = new byte[numDims][];
-      for(int dim=0;dim<numDims;dim++) {
+      byte[][] values = new byte[numDataDims][];
+      for(int dim=0;dim<numDataDims;dim++) {
         values[dim] = new byte[numBytesPerDim];
         random().nextBytes(values[dim]);
       }
@@ -509,17 +514,18 @@ public class TestBKD extends LuceneTestCase {
     }
 
     // Use a small number of points in leaf blocks to trigger a lot of splitting
-    verify(docValues, null, numDims, numBytesPerDim, TestUtil.nextInt(random(), 20, 50));
+    verify(docValues, null, numDataDims, numIndexDims, numBytesPerDim, TestUtil.nextInt(random(), 20, 50));
   }
 
   // This triggers the logic that makes sure all dimensions get indexed
   // by looking at how many times each dim has been split
   public void testOneDimLowCard() throws Exception {
     int numBytesPerDim = TestUtil.nextInt(random(), 2, 30);
-    int numDims = TestUtil.nextInt(random(), 2, 5);
+    int numDataDims = TestUtil.nextInt(random(), 2, 5);
+    int numIndexDims = TestUtil.nextInt(random(), 2, numDataDims);
 
     int numDocs = atLeast(10000);
-    int theLowCardDim = random().nextInt(numDims);
+    int theLowCardDim = random().nextInt(numDataDims);
 
     byte[] value1 = new byte[numBytesPerDim];
     random().nextBytes(value1);
@@ -533,8 +539,8 @@ public class TestBKD extends LuceneTestCase {
     byte[][][] docValues = new byte[numDocs][][];
 
     for(int docID=0;docID<numDocs;docID++) {
-      byte[][] values = new byte[numDims][];
-      for(int dim=0;dim<numDims;dim++) {
+      byte[][] values = new byte[numDataDims][];
+      for(int dim=0;dim<numDataDims;dim++) {
         if (dim == theLowCardDim) {
           values[dim] = random().nextBoolean() ? value1 : value2;
         } else {
@@ -546,16 +552,17 @@ public class TestBKD extends LuceneTestCase {
     }
 
     // Use a small number of points in leaf blocks to trigger a lot of splitting
-    verify(docValues, null, numDims, numBytesPerDim, TestUtil.nextInt(random(), 20, 50));
+    verify(docValues, null, numDataDims, numIndexDims, numBytesPerDim, TestUtil.nextInt(random(), 20, 50));
   }
 
   // this should trigger run-length compression with lengths that are greater than 255
   public void testOneDimTwoValues() throws Exception {
     int numBytesPerDim = TestUtil.nextInt(random(), 2, 30);
-    int numDims = TestUtil.nextInt(random(), 1, 5);
+    int numDataDims = TestUtil.nextInt(random(), 1, 5);
+    int numIndexDims = TestUtil.nextInt(random(), 1, numDataDims);
 
     int numDocs = atLeast(1000);
-    int theDim = random().nextInt(numDims);
+    int theDim = random().nextInt(numDataDims);
     byte[] value1 = new byte[numBytesPerDim];
     random().nextBytes(value1);
     byte[] value2 = new byte[numBytesPerDim];
@@ -563,8 +570,8 @@ public class TestBKD extends LuceneTestCase {
     byte[][][] docValues = new byte[numDocs][][];
 
     for(int docID=0;docID<numDocs;docID++) {
-      byte[][] values = new byte[numDims][];
-      for(int dim=0;dim<numDims;dim++) {
+      byte[][] values = new byte[numDataDims][];
+      for(int dim=0;dim<numDataDims;dim++) {
         if (dim == theDim) {
           values[dim] = random().nextBoolean() ? value1 : value2;
         } else {
@@ -575,12 +582,13 @@ public class TestBKD extends LuceneTestCase {
       docValues[docID] = values;
     }
 
-    verify(docValues, null, numDims, numBytesPerDim);
+    verify(docValues, null, numDataDims, numIndexDims, numBytesPerDim);
   }
 
   public void testMultiValued() throws Exception {
     int numBytesPerDim = TestUtil.nextInt(random(), 2, 30);
-    int numDims = TestUtil.nextInt(random(), 1, 5);
+    int numDataDims = TestUtil.nextInt(random(), 1, 5);
+    int numIndexDims = TestUtil.nextInt(random(), 1, numDataDims);
 
     int numDocs = atLeast(1000);
     List<byte[][]> docValues = new ArrayList<>();
@@ -590,8 +598,8 @@ public class TestBKD extends LuceneTestCase {
       int numValuesInDoc = TestUtil.nextInt(random(), 1, 5);
       for(int ord=0;ord<numValuesInDoc;ord++) {
         docIDs.add(docID);
-        byte[][] values = new byte[numDims][];
-        for(int dim=0;dim<numDims;dim++) {
+        byte[][] values = new byte[numDataDims][];
+        for(int dim=0;dim<numDataDims;dim++) {
           values[dim] = new byte[numBytesPerDim];
           random().nextBytes(values[dim]);
         }
@@ -605,33 +613,33 @@ public class TestBKD extends LuceneTestCase {
       docIDsArray[i] = docIDs.get(i);
     }
 
-    verify(docValuesArray, docIDsArray, numDims, numBytesPerDim);
+    verify(docValuesArray, docIDsArray, numDataDims, numIndexDims, numBytesPerDim);
   }
 
   /** docIDs can be null, for the single valued case, else it maps value to docID */
-  private void verify(byte[][][] docValues, int[] docIDs, int numDims, int numBytesPerDim) throws Exception {
-    verify(docValues, docIDs, numDims, numBytesPerDim, TestUtil.nextInt(random(), 50, 1000));
+  private void verify(byte[][][] docValues, int[] docIDs, int numDataDims, int numIndexDims, int numBytesPerDim) throws Exception {
+    verify(docValues, docIDs, numDataDims, numIndexDims, numBytesPerDim, TestUtil.nextInt(random(), 50, 1000));
   }
 
-  private void verify(byte[][][] docValues, int[] docIDs, int numDims, int numBytesPerDim,
+  private void verify(byte[][][] docValues, int[] docIDs, int numDataDims, int numIndexDims, int numBytesPerDim,
       int maxPointsInLeafNode) throws Exception {
     try (Directory dir = getDirectory(docValues.length)) {
       double maxMB = (float) 3.0 + (3*random().nextDouble());
-      verify(dir, docValues, docIDs, numDims, numBytesPerDim, maxPointsInLeafNode, maxMB);
+      verify(dir, docValues, docIDs, numDataDims, numIndexDims, numBytesPerDim, maxPointsInLeafNode, maxMB);
     }
   }
 
-  private void verify(Directory dir, byte[][][] docValues, int[] docIDs, int numDims, int numBytesPerDim, int maxPointsInLeafNode, double maxMB) throws Exception {
+  private void verify(Directory dir, byte[][][] docValues, int[] docIDs, int numDataDims, int numIndexDims, int numBytesPerDim, int maxPointsInLeafNode, double maxMB) throws Exception {
     int numValues = docValues.length;
     if (VERBOSE) {
-      System.out.println("TEST: numValues=" + numValues + " numDims=" + numDims + " numBytesPerDim=" + numBytesPerDim + " maxPointsInLeafNode=" + maxPointsInLeafNode + " maxMB=" + maxMB);
+      System.out.println("TEST: numValues=" + numValues + " numDataDims=" + numDataDims + " numIndexDims=" + numIndexDims + " numBytesPerDim=" + numBytesPerDim + " maxPointsInLeafNode=" + maxPointsInLeafNode + " maxMB=" + maxMB);
     }
 
     List<Long> toMerge = null;
     List<MergeState.DocMap> docMaps = null;
     int seg = 0;
 
-    BKDWriter w = new BKDWriter(numValues, dir, "_" + seg, numDims, numBytesPerDim, maxPointsInLeafNode, maxMB, docValues.length, false);
+    BKDWriter w = new BKDWriter(numValues, dir, "_" + seg, numDataDims, numIndexDims, numBytesPerDim, maxPointsInLeafNode, maxMB, docValues.length, false);
     IndexOutput out = dir.createOutput("bkd", IOContext.DEFAULT);
     IndexInput in = null;
 
@@ -639,9 +647,9 @@ public class TestBKD extends LuceneTestCase {
 
     try {
 
-      byte[] scratch = new byte[numBytesPerDim*numDims];
+      byte[] scratch = new byte[numBytesPerDim*numDataDims];
       int lastDocIDBase = 0;
-      boolean useMerge = numDims == 1 && numValues >= 10 && random().nextBoolean();
+      boolean useMerge = numDataDims == 1 && numValues >= 10 && random().nextBoolean();
       int valuesInThisSeg;
       if (useMerge) {
         // Sometimes we will call merge with a single segment:
@@ -662,7 +670,7 @@ public class TestBKD extends LuceneTestCase {
         if (VERBOSE) {
           System.out.println("  ord=" + ord + " docID=" + docID + " lastDocIDBase=" + lastDocIDBase);
         }
-        for(int dim=0;dim<numDims;dim++) {
+        for(int dim=0;dim<numDataDims;dim++) {
           if (VERBOSE) {
             System.out.println("    " + dim + " -> " + new BytesRef(docValues[ord][dim]));
           }
@@ -691,7 +699,7 @@ public class TestBKD extends LuceneTestCase {
           seg++;
           maxPointsInLeafNode = TestUtil.nextInt(random(), 50, 1000);
           maxMB = (float) 3.0 + (3*random().nextDouble());
-          w = new BKDWriter(numValues, dir, "_" + seg, numDims, numBytesPerDim, maxPointsInLeafNode, maxMB, docValues.length, false);
+          w = new BKDWriter(numValues, dir, "_" + seg, numDataDims, numIndexDims, numBytesPerDim, maxPointsInLeafNode, maxMB, docValues.length, false);
           lastDocIDBase = docID;
         }
       }
@@ -712,7 +720,7 @@ public class TestBKD extends LuceneTestCase {
         out.close();
         in = dir.openInput("bkd", IOContext.DEFAULT);
         seg++;
-        w = new BKDWriter(numValues, dir, "_" + seg, numDims, numBytesPerDim, maxPointsInLeafNode, maxMB, docValues.length, false);
+        w = new BKDWriter(numValues, dir, "_" + seg, numDataDims, numIndexDims, numBytesPerDim, maxPointsInLeafNode, maxMB, docValues.length, false);
         List<BKDReader> readers = new ArrayList<>();
         for(long fp : toMerge) {
           in.seek(fp);
@@ -739,9 +747,9 @@ public class TestBKD extends LuceneTestCase {
         }
 
         // Random N dims rect query:
-        byte[][] queryMin = new byte[numDims][];
-        byte[][] queryMax = new byte[numDims][];    
-        for(int dim=0;dim<numDims;dim++) {    
+        byte[][] queryMin = new byte[numDataDims][];
+        byte[][] queryMax = new byte[numDataDims][];
+        for(int dim=0;dim<numDataDims;dim++) {
           queryMin[dim] = new byte[numBytesPerDim];
           random().nextBytes(queryMin[dim]);
           queryMax[dim] = new byte[numBytesPerDim];
@@ -764,7 +772,7 @@ public class TestBKD extends LuceneTestCase {
             @Override
             public void visit(int docID, byte[] packedValue) {
               //System.out.println("visit check docID=" + docID);
-              for(int dim=0;dim<numDims;dim++) {
+              for(int dim=0;dim<numIndexDims;dim++) {
                 if (FutureArrays.compareUnsigned(packedValue, dim * numBytesPerDim, dim * numBytesPerDim + numBytesPerDim, queryMin[dim], 0, numBytesPerDim) < 0 ||
                     FutureArrays.compareUnsigned(packedValue, dim * numBytesPerDim, dim * numBytesPerDim + numBytesPerDim, queryMax[dim], 0, numBytesPerDim) > 0) {
                   //System.out.println("  no");
@@ -779,7 +787,7 @@ public class TestBKD extends LuceneTestCase {
             @Override
             public Relation compare(byte[] minPacked, byte[] maxPacked) {
               boolean crosses = false;
-              for(int dim=0;dim<numDims;dim++) {
+              for(int dim=0;dim<numIndexDims;dim++) {
                 if (FutureArrays.compareUnsigned(maxPacked, dim * numBytesPerDim, dim * numBytesPerDim + numBytesPerDim, queryMin[dim], 0, numBytesPerDim) < 0 ||
                     FutureArrays.compareUnsigned(minPacked, dim * numBytesPerDim, dim * numBytesPerDim + numBytesPerDim, queryMax[dim], 0, numBytesPerDim) > 0) {
                   return Relation.CELL_OUTSIDE_QUERY;
@@ -800,7 +808,7 @@ public class TestBKD extends LuceneTestCase {
         BitSet expected = new BitSet();
         for(int ord=0;ord<numValues;ord++) {
           boolean matches = true;
-          for(int dim=0;dim<numDims;dim++) {
+          for(int dim=0;dim<numIndexDims;dim++) {
             byte[] x = docValues[ord][dim];
             if (FutureArrays.compareUnsigned(x, 0, numBytesPerDim, queryMin[dim], 0, numBytesPerDim) < 0 ||
                 FutureArrays.compareUnsigned(x, 0, numBytesPerDim, queryMax[dim], 0, numBytesPerDim) > 0) {
@@ -897,7 +905,7 @@ public class TestBKD extends LuceneTestCase {
       };
 
       CorruptIndexException e = expectThrows(CorruptIndexException.class, () -> {
-          verify(dir, docValues, null, numDims, numBytesPerDim, 50, 0.1);
+          verify(dir, docValues, null, numDims, numDims, numBytesPerDim, 50, 0.1);
         });
       assertTrue(e.getMessage().contains("checksum failed (hardware problem?)"));
     }
@@ -945,7 +953,7 @@ public class TestBKD extends LuceneTestCase {
       };
 
       Throwable t = expectThrows(CorruptIndexException.class, () -> {
-          verify(dir, docValues, null, numDims, numBytesPerDim, 50, 0.1);
+          verify(dir, docValues, null, numDims, numDims, numBytesPerDim, 50, 0.1);
         });
       assertCorruptionDetected(t);
     }
@@ -971,7 +979,7 @@ public class TestBKD extends LuceneTestCase {
   public void testTieBreakOrder() throws Exception {
     try (Directory dir = newDirectory()) {
       int numDocs = 10000;
-      BKDWriter w = new BKDWriter(numDocs+1, dir, "tmp", 1, Integer.BYTES, 2, 0.01f, numDocs, true);
+      BKDWriter w = new BKDWriter(numDocs+1, dir, "tmp", 1, 1, Integer.BYTES, 2, 0.01f, numDocs, true);
       for(int i=0;i<numDocs;i++) {
         w.add(new byte[Integer.BYTES], i);
       }
@@ -1012,7 +1020,7 @@ public class TestBKD extends LuceneTestCase {
       boolean singleValuePerDoc = false;
       boolean longOrds = true;
       int offlineSorterMaxTempFiles = TestUtil.nextInt(random(), 2, 20);
-      BKDWriter w = new BKDWriter(numDocs+1, dir, "tmp", 2, Integer.BYTES, 2, 0.01f, numDocs,
+      BKDWriter w = new BKDWriter(numDocs+1, dir, "tmp", 2, 2, Integer.BYTES, 2, 0.01f, numDocs,
                                   singleValuePerDoc, longOrds, 1, offlineSorterMaxTempFiles);
       byte[] buffer = new byte[2*Integer.BYTES];
       for(int i=0;i<numDocs;i++) {
@@ -1058,12 +1066,13 @@ public class TestBKD extends LuceneTestCase {
   // values as a LongPoint:
   public void testWastedLeadingBytes() throws Exception {
     int numDims = TestUtil.nextInt(random(), 1, PointValues.MAX_DIMENSIONS);
+    int numIndexDims = TestUtil.nextInt(random(), 1, numDims);
     int bytesPerDim = PointValues.MAX_NUM_BYTES;
     int bytesUsed = TestUtil.nextInt(random(), 1, 3);
 
     Directory dir = newFSDirectory(createTempDir());
     int numDocs = 100000;
-    BKDWriter w = new BKDWriter(numDocs+1, dir, "tmp", numDims, bytesPerDim, 32, 1f, numDocs, true);
+    BKDWriter w = new BKDWriter(numDocs+1, dir, "tmp", numDims, numIndexDims, bytesPerDim, 32, 1f, numDocs, true);
     byte[] tmp = new byte[bytesUsed];
     byte[] buffer = new byte[numDims * bytesPerDim];
     for(int i=0;i<numDocs;i++) {
@@ -1091,11 +1100,14 @@ public class TestBKD extends LuceneTestCase {
 
         @Override
         public void visit(int docID, byte[] packedValue) {
+          assert packedValue.length == numDims * bytesPerDim;
           visit(docID);
         }
 
         @Override
         public Relation compare(byte[] minPacked, byte[] maxPacked) {
+          assert minPacked.length == numIndexDims * bytesPerDim;
+          assert maxPacked.length == numIndexDims * bytesPerDim;
           if (random().nextInt(7) == 1) {
             return Relation.CELL_CROSSES_QUERY;
           } else {
@@ -1117,7 +1129,7 @@ public class TestBKD extends LuceneTestCase {
     final byte[] uniquePointValue = new byte[numBytesPerDim];
     random().nextBytes(uniquePointValue);
 
-    BKDWriter w = new BKDWriter(numValues, dir, "_temp", 1, numBytesPerDim, maxPointsInLeafNode,
+    BKDWriter w = new BKDWriter(numValues, dir, "_temp", 1, 1, numBytesPerDim, maxPointsInLeafNode,
         BKDWriter.DEFAULT_MAX_MB_SORT_IN_HEAP, numValues, true);
     for (int i = 0; i < numValues; ++i) {
       if (i == numValues / 2) {

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/test/org/apache/lucene/util/bkd/TestMutablePointsReaderUtils.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/test/org/apache/lucene/util/bkd/TestMutablePointsReaderUtils.java b/lucene/core/src/test/org/apache/lucene/util/bkd/TestMutablePointsReaderUtils.java
index f38ab5a..da75b12 100644
--- a/lucene/core/src/test/org/apache/lucene/util/bkd/TestMutablePointsReaderUtils.java
+++ b/lucene/core/src/test/org/apache/lucene/util/bkd/TestMutablePointsReaderUtils.java
@@ -232,7 +232,12 @@ public class TestMutablePointsReaderUtils extends LuceneTestCase {
     }
 
     @Override
-    public int getNumDimensions() throws IOException {
+    public int getNumDataDimensions() throws IOException {
+      throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public int getNumIndexDimensions() throws IOException {
       throw new UnsupportedOperationException();
     }
 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/highlighter/src/java/org/apache/lucene/search/highlight/TermVectorLeafReader.java
----------------------------------------------------------------------
diff --git a/lucene/highlighter/src/java/org/apache/lucene/search/highlight/TermVectorLeafReader.java b/lucene/highlighter/src/java/org/apache/lucene/search/highlight/TermVectorLeafReader.java
index 1eef95f..42f7aec 100644
--- a/lucene/highlighter/src/java/org/apache/lucene/search/highlight/TermVectorLeafReader.java
+++ b/lucene/highlighter/src/java/org/apache/lucene/search/highlight/TermVectorLeafReader.java
@@ -81,7 +81,7 @@ public class TermVectorLeafReader extends LeafReader {
     }
     FieldInfo fieldInfo = new FieldInfo(field, 0,
                                         true, true, terms.hasPayloads(),
-                                        indexOptions, DocValuesType.NONE, -1, Collections.emptyMap(), 0, 0, false);
+                                        indexOptions, DocValuesType.NONE, -1, Collections.emptyMap(), 0, 0, 0, false);
     fieldInfos = new FieldInfos(new FieldInfo[]{fieldInfo});
   }
 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/join/src/java/org/apache/lucene/search/join/PointInSetIncludingScoreQuery.java
----------------------------------------------------------------------
diff --git a/lucene/join/src/java/org/apache/lucene/search/join/PointInSetIncludingScoreQuery.java b/lucene/join/src/java/org/apache/lucene/search/join/PointInSetIncludingScoreQuery.java
index 02b7e86..80810e2 100644
--- a/lucene/join/src/java/org/apache/lucene/search/join/PointInSetIncludingScoreQuery.java
+++ b/lucene/join/src/java/org/apache/lucene/search/join/PointInSetIncludingScoreQuery.java
@@ -146,8 +146,8 @@ abstract class PointInSetIncludingScoreQuery extends Query {
         if (fieldInfo == null) {
           return null;
         }
-        if (fieldInfo.getPointDimensionCount() != 1) {
-          throw new IllegalArgumentException("field=\"" + field + "\" was indexed with numDims=" + fieldInfo.getPointDimensionCount() + " but this query has numDims=1");
+        if (fieldInfo.getPointDataDimensionCount() != 1) {
+          throw new IllegalArgumentException("field=\"" + field + "\" was indexed with numDims=" + fieldInfo.getPointDataDimensionCount() + " but this query has numDims=1");
         }
         if (fieldInfo.getPointNumBytes() != bytesPerDim) {
           throw new IllegalArgumentException("field=\"" + field + "\" was indexed with bytesPerDim=" + fieldInfo.getPointNumBytes() + " but this query has bytesPerDim=" + bytesPerDim);

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/memory/src/java/org/apache/lucene/index/memory/MemoryIndex.java
----------------------------------------------------------------------
diff --git a/lucene/memory/src/java/org/apache/lucene/index/memory/MemoryIndex.java b/lucene/memory/src/java/org/apache/lucene/index/memory/MemoryIndex.java
index 42af398..0078c3f 100644
--- a/lucene/memory/src/java/org/apache/lucene/index/memory/MemoryIndex.java
+++ b/lucene/memory/src/java/org/apache/lucene/index/memory/MemoryIndex.java
@@ -410,7 +410,7 @@ public class MemoryIndex {
       storeDocValues(info, docValuesType, docValuesValue);
     }
 
-    if (field.fieldType().pointDimensionCount() > 0) {
+    if (field.fieldType().pointDataDimensionCount() > 0) {
       storePointValues(info, field.binaryValue());
     }
 
@@ -486,9 +486,9 @@ public class MemoryIndex {
     if (info == null) {
       fields.put(fieldName, info = new Info(createFieldInfo(fieldName, fields.size(), fieldType), byteBlockPool));
     }
-    if (fieldType.pointDimensionCount() != info.fieldInfo.getPointDimensionCount()) {
-      if (fieldType.pointDimensionCount() > 0)
-        info.fieldInfo.setPointDimensions(fieldType.pointDimensionCount(), fieldType.pointNumBytes());
+    if (fieldType.pointDataDimensionCount() != info.fieldInfo.getPointDataDimensionCount()) {
+      if (fieldType.pointDataDimensionCount() > 0)
+        info.fieldInfo.setPointDimensions(fieldType.pointDataDimensionCount(), fieldType.pointIndexDimensionCount(), fieldType.pointNumBytes());
     }
     if (fieldType.docValuesType() != info.fieldInfo.getDocValuesType()) {
       if (fieldType.docValuesType() != DocValuesType.NONE)
@@ -501,7 +501,7 @@ public class MemoryIndex {
     IndexOptions indexOptions = storeOffsets ? IndexOptions.DOCS_AND_FREQS_AND_POSITIONS_AND_OFFSETS : IndexOptions.DOCS_AND_FREQS_AND_POSITIONS;
     return new FieldInfo(fieldName, ord, fieldType.storeTermVectors(), fieldType.omitNorms(), storePayloads,
         indexOptions, fieldType.docValuesType(), -1, Collections.emptyMap(),
-        fieldType.pointDimensionCount(), fieldType.pointNumBytes(), false);
+        fieldType.pointDataDimensionCount(), fieldType.pointIndexDimensionCount(), fieldType.pointNumBytes(), false);
   }
 
   private void storePointValues(Info info, BytesRef pointValue) {
@@ -520,7 +520,8 @@ public class MemoryIndex {
       info.fieldInfo = new FieldInfo(
           info.fieldInfo.name, info.fieldInfo.number, info.fieldInfo.hasVectors(), info.fieldInfo.hasPayloads(),
           info.fieldInfo.hasPayloads(), info.fieldInfo.getIndexOptions(), docValuesType, -1, info.fieldInfo.attributes(),
-          info.fieldInfo.getPointDimensionCount(), info.fieldInfo.getPointNumBytes(), info.fieldInfo.isSoftDeletesField()
+          info.fieldInfo.getPointDataDimensionCount(), info.fieldInfo.getPointIndexDimensionCount(), info.fieldInfo.getPointNumBytes(),
+          info.fieldInfo.isSoftDeletesField()
       );
     } else if (existingDocValuesType != docValuesType) {
       throw new IllegalArgumentException("Can't add [" + docValuesType + "] doc values field [" + fieldName + "], because [" + existingDocValuesType + "] doc values field already exists");
@@ -870,7 +871,7 @@ public class MemoryIndex {
         if (pointValues != null) {
           assert pointValues[0].bytes.length == pointValues[0].length : "BytesRef should wrap a precise byte[], BytesRef.deepCopyOf() should take care of this";
 
-          final int numDimensions = fieldInfo.getPointDimensionCount();
+          final int numDimensions = fieldInfo.getPointDataDimensionCount();
           final int numBytesPerDimension = fieldInfo.getPointNumBytes();
           if (numDimensions == 1) {
             // PointInSetQuery.MergePointVisitor expects values to be visited in increasing order,
@@ -1576,8 +1577,13 @@ public class MemoryIndex {
       }
 
       @Override
-      public int getNumDimensions() throws IOException {
-        return info.fieldInfo.getPointDimensionCount();
+      public int getNumDataDimensions() throws IOException {
+        return info.fieldInfo.getPointDataDimensionCount();
+      }
+
+      @Override
+      public int getNumIndexDimensions() throws IOException {
+        return info.fieldInfo.getPointDataDimensionCount();
       }
 
       @Override

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/sandbox/src/java/org/apache/lucene/document/BigIntegerPoint.java
----------------------------------------------------------------------
diff --git a/lucene/sandbox/src/java/org/apache/lucene/document/BigIntegerPoint.java b/lucene/sandbox/src/java/org/apache/lucene/document/BigIntegerPoint.java
index 4dc50d1..82eeb3f 100644
--- a/lucene/sandbox/src/java/org/apache/lucene/document/BigIntegerPoint.java
+++ b/lucene/sandbox/src/java/org/apache/lucene/document/BigIntegerPoint.java
@@ -62,8 +62,8 @@ public class BigIntegerPoint extends Field {
 
   /** Change the values of this field */
   public void setBigIntegerValues(BigInteger... point) {
-    if (type.pointDimensionCount() != point.length) {
-      throw new IllegalArgumentException("this field (name=" + name + ") uses " + type.pointDimensionCount() + " dimensions; cannot change to (incoming) " + point.length + " dimensions");
+    if (type.pointDataDimensionCount() != point.length) {
+      throw new IllegalArgumentException("this field (name=" + name + ") uses " + type.pointDataDimensionCount() + " dimensions; cannot change to (incoming) " + point.length + " dimensions");
     }
     fieldsData = pack(point);
   }
@@ -75,8 +75,8 @@ public class BigIntegerPoint extends Field {
 
   @Override
   public Number numericValue() {
-    if (type.pointDimensionCount() != 1) {
-      throw new IllegalStateException("this field (name=" + name + ") uses " + type.pointDimensionCount() + " dimensions; cannot convert to a single numeric value");
+    if (type.pointDataDimensionCount() != 1) {
+      throw new IllegalStateException("this field (name=" + name + ") uses " + type.pointDataDimensionCount() + " dimensions; cannot convert to a single numeric value");
     }
     BytesRef bytes = (BytesRef) fieldsData;
     assert bytes.length == BYTES;
@@ -119,7 +119,7 @@ public class BigIntegerPoint extends Field {
     result.append(':');
 
     BytesRef bytes = (BytesRef) fieldsData;
-    for (int dim = 0; dim < type.pointDimensionCount(); dim++) {
+    for (int dim = 0; dim < type.pointDataDimensionCount(); dim++) {
       if (dim > 0) {
         result.append(',');
       }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/sandbox/src/java/org/apache/lucene/document/HalfFloatPoint.java
----------------------------------------------------------------------
diff --git a/lucene/sandbox/src/java/org/apache/lucene/document/HalfFloatPoint.java b/lucene/sandbox/src/java/org/apache/lucene/document/HalfFloatPoint.java
index 1f599a6..15d8240 100644
--- a/lucene/sandbox/src/java/org/apache/lucene/document/HalfFloatPoint.java
+++ b/lucene/sandbox/src/java/org/apache/lucene/document/HalfFloatPoint.java
@@ -213,8 +213,8 @@ public final class HalfFloatPoint extends Field {
 
   /** Change the values of this field */
   public void setFloatValues(float... point) {
-    if (type.pointDimensionCount() != point.length) {
-      throw new IllegalArgumentException("this field (name=" + name + ") uses " + type.pointDimensionCount() + " dimensions; cannot change to (incoming) " + point.length + " dimensions");
+    if (type.pointDataDimensionCount() != point.length) {
+      throw new IllegalArgumentException("this field (name=" + name + ") uses " + type.pointDataDimensionCount() + " dimensions; cannot change to (incoming) " + point.length + " dimensions");
     }
     fieldsData = pack(point);
   }
@@ -226,8 +226,8 @@ public final class HalfFloatPoint extends Field {
 
   @Override
   public Number numericValue() {
-    if (type.pointDimensionCount() != 1) {
-      throw new IllegalStateException("this field (name=" + name + ") uses " + type.pointDimensionCount() + " dimensions; cannot convert to a single numeric value");
+    if (type.pointDataDimensionCount() != 1) {
+      throw new IllegalStateException("this field (name=" + name + ") uses " + type.pointDataDimensionCount() + " dimensions; cannot convert to a single numeric value");
     }
     BytesRef bytes = (BytesRef) fieldsData;
     assert bytes.length == BYTES;
@@ -270,7 +270,7 @@ public final class HalfFloatPoint extends Field {
     result.append(':');
 
     BytesRef bytes = (BytesRef) fieldsData;
-    for (int dim = 0; dim < type.pointDimensionCount(); dim++) {
+    for (int dim = 0; dim < type.pointDataDimensionCount(); dim++) {
       if (dim > 0) {
         result.append(',');
       }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/spatial-extras/src/java/org/apache/lucene/spatial/bbox/BBoxStrategy.java
----------------------------------------------------------------------
diff --git a/lucene/spatial-extras/src/java/org/apache/lucene/spatial/bbox/BBoxStrategy.java b/lucene/spatial-extras/src/java/org/apache/lucene/spatial/bbox/BBoxStrategy.java
index 5029d0e..2cdef86 100644
--- a/lucene/spatial-extras/src/java/org/apache/lucene/spatial/bbox/BBoxStrategy.java
+++ b/lucene/spatial-extras/src/java/org/apache/lucene/spatial/bbox/BBoxStrategy.java
@@ -148,7 +148,7 @@ public class BBoxStrategy extends SpatialStrategy {
     if ((this.hasDocVals = fieldType.docValuesType() != DocValuesType.NONE)) {
       numQuads++;
     }
-    if ((this.hasPointVals = fieldType.pointDimensionCount() > 0)) {
+    if ((this.hasPointVals = fieldType.pointDataDimensionCount() > 0)) {
       numQuads++;
     }
 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/spatial-extras/src/java/org/apache/lucene/spatial/vector/PointVectorStrategy.java
----------------------------------------------------------------------
diff --git a/lucene/spatial-extras/src/java/org/apache/lucene/spatial/vector/PointVectorStrategy.java b/lucene/spatial-extras/src/java/org/apache/lucene/spatial/vector/PointVectorStrategy.java
index c7904df..f06770e 100644
--- a/lucene/spatial-extras/src/java/org/apache/lucene/spatial/vector/PointVectorStrategy.java
+++ b/lucene/spatial-extras/src/java/org/apache/lucene/spatial/vector/PointVectorStrategy.java
@@ -139,7 +139,7 @@ public class PointVectorStrategy extends SpatialStrategy {
     if ((this.hasDocVals = fieldType.docValuesType() != DocValuesType.NONE)) {
       numPairs++;
     }
-    if ((this.hasPointVals = fieldType.pointDimensionCount() > 0)) {
+    if ((this.hasPointVals = fieldType.pointDataDimensionCount() > 0)) {
       numPairs++;
     }
     this.fieldsLen = numPairs * 2;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/test-framework/src/java/org/apache/lucene/codecs/asserting/AssertingPointsFormat.java
----------------------------------------------------------------------
diff --git a/lucene/test-framework/src/java/org/apache/lucene/codecs/asserting/AssertingPointsFormat.java b/lucene/test-framework/src/java/org/apache/lucene/codecs/asserting/AssertingPointsFormat.java
index ff2e1b6..4943b99 100644
--- a/lucene/test-framework/src/java/org/apache/lucene/codecs/asserting/AssertingPointsFormat.java
+++ b/lucene/test-framework/src/java/org/apache/lucene/codecs/asserting/AssertingPointsFormat.java
@@ -131,8 +131,8 @@ public final class AssertingPointsFormat extends PointsFormat {
     
     @Override
     public void writeField(FieldInfo fieldInfo, PointsReader values) throws IOException {
-      if (fieldInfo.getPointDimensionCount() == 0) {
-        throw new IllegalArgumentException("writing field=\"" + fieldInfo.name + "\" but pointDimensionalCount is 0");
+      if (fieldInfo.getPointDataDimensionCount() == 0) {
+        throw new IllegalArgumentException("writing field=\"" + fieldInfo.name + "\" but pointDataDimensionalCount is 0");
       }
       in.writeField(fieldInfo, values);
     }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/test-framework/src/java/org/apache/lucene/codecs/cranky/CrankyPointsFormat.java
----------------------------------------------------------------------
diff --git a/lucene/test-framework/src/java/org/apache/lucene/codecs/cranky/CrankyPointsFormat.java b/lucene/test-framework/src/java/org/apache/lucene/codecs/cranky/CrankyPointsFormat.java
index 486d81c..681edbd 100644
--- a/lucene/test-framework/src/java/org/apache/lucene/codecs/cranky/CrankyPointsFormat.java
+++ b/lucene/test-framework/src/java/org/apache/lucene/codecs/cranky/CrankyPointsFormat.java
@@ -155,11 +155,19 @@ class CrankyPointsFormat extends PointsFormat {
         }
 
         @Override
-        public int getNumDimensions() throws IOException {
+        public int getNumDataDimensions() throws IOException {
           if (random.nextInt(100) == 0) {
             throw new IOException("Fake IOException");
           }
-          return delegate.getNumDimensions();
+          return delegate.getNumDataDimensions();
+        }
+
+        @Override
+        public int getNumIndexDimensions() throws IOException {
+          if (random.nextInt(100) == 0) {
+            throw new IOException("Fake IOException");
+          }
+          return delegate.getNumIndexDimensions();
         }
 
         @Override


[4/4] lucene-solr:master: LUCENE-8496: Selective indexing - modify BKDReader/BKDWriter to allow users to select a fewer number of dimensions to be used for creating the index than the total number of dimensions used for field encoding. i.e., dimensions 0

Posted by nk...@apache.org.
LUCENE-8496: Selective indexing - modify BKDReader/BKDWriter to allow users to select a fewer number of dimensions to be used for creating the index than the total number of dimensions used for field encoding. i.e., dimensions 0 to N may be used to determine how to split the inner nodes, and dimensions N+1 to D are ignored and stored as data dimensions at the leaves.


Project: http://git-wip-us.apache.org/repos/asf/lucene-solr/repo
Commit: http://git-wip-us.apache.org/repos/asf/lucene-solr/commit/1118299c
Tree: http://git-wip-us.apache.org/repos/asf/lucene-solr/tree/1118299c
Diff: http://git-wip-us.apache.org/repos/asf/lucene-solr/diff/1118299c

Branch: refs/heads/master
Commit: 1118299c338253cea09640acdc48dc930dc27fda
Parents: df07a43
Author: Nicholas Knize <nk...@gmail.com>
Authored: Mon Oct 8 18:51:03 2018 -0500
Committer: Nicholas Knize <nk...@gmail.com>
Committed: Mon Oct 8 18:51:03 2018 -0500

----------------------------------------------------------------------
 lucene/CHANGES.txt                              |   8 +
 .../codecs/simpletext/SimpleTextBKDReader.java  |  59 ++++---
 .../codecs/simpletext/SimpleTextBKDWriter.java  | 144 ++++++++-------
 .../simpletext/SimpleTextFieldInfosFormat.java  |  21 ++-
 .../simpletext/SimpleTextPointsReader.java      |  20 ++-
 .../simpletext/SimpleTextPointsWriter.java      |   6 +-
 .../org/apache/lucene/codecs/PointsWriter.java  |  13 +-
 .../lucene50/Lucene50FieldInfosFormat.java      |   2 +-
 .../lucene60/Lucene60FieldInfosFormat.java      |  21 ++-
 .../codecs/lucene60/Lucene60PointsReader.java   |   2 +-
 .../codecs/lucene60/Lucene60PointsWriter.java   |  14 +-
 .../codecs/perfield/PerFieldMergeState.java     |   2 +-
 .../org/apache/lucene/document/BinaryPoint.java |   4 +-
 .../org/apache/lucene/document/DoublePoint.java |  10 +-
 .../org/apache/lucene/document/DoubleRange.java |  10 +-
 .../org/apache/lucene/document/FieldType.java   |  66 +++++--
 .../org/apache/lucene/document/FloatPoint.java  |  10 +-
 .../org/apache/lucene/document/FloatRange.java  |  10 +-
 .../org/apache/lucene/document/IntPoint.java    |  10 +-
 .../org/apache/lucene/document/IntRange.java    |  10 +-
 .../org/apache/lucene/document/LatLonPoint.java |   6 +-
 .../org/apache/lucene/document/LongPoint.java   |  10 +-
 .../org/apache/lucene/document/LongRange.java   |  10 +-
 .../apache/lucene/document/RangeFieldQuery.java |   4 +-
 .../org/apache/lucene/index/CheckIndex.java     |  37 ++--
 .../org/apache/lucene/index/CodecReader.java    |   2 +-
 .../lucene/index/DefaultIndexingChain.java      |  15 +-
 .../java/org/apache/lucene/index/FieldInfo.java |  73 +++++---
 .../org/apache/lucene/index/FieldInfos.java     |  61 ++++---
 .../org/apache/lucene/index/IndexWriter.java    |   6 +-
 .../apache/lucene/index/IndexableFieldType.java |   9 +-
 .../org/apache/lucene/index/PointValues.java    |  11 +-
 .../apache/lucene/index/PointValuesWriter.java  |  20 ++-
 .../apache/lucene/index/SortingLeafReader.java  |   9 +-
 .../apache/lucene/search/PointInSetQuery.java   |   4 +-
 .../apache/lucene/search/PointRangeQuery.java   |   4 +-
 .../org/apache/lucene/util/bkd/BKDReader.java   | 140 ++++++++-------
 .../org/apache/lucene/util/bkd/BKDWriter.java   | 174 ++++++++++---------
 .../apache/lucene/document/TestFieldType.java   |  11 +-
 .../apache/lucene/index/TestIndexableField.java |   7 +-
 .../lucene/index/TestPendingSoftDeletes.java    |  10 +-
 .../apache/lucene/index/TestPointValues.java    |  14 +-
 .../apache/lucene/search/TestPointQueries.java  |   2 +-
 .../apache/lucene/util/TestDocIdSetBuilder.java |   7 +-
 .../apache/lucene/util/bkd/Test2BBKDPoints.java |   4 +-
 .../org/apache/lucene/util/bkd/TestBKD.java     | 142 ++++++++-------
 .../util/bkd/TestMutablePointsReaderUtils.java  |   7 +-
 .../search/highlight/TermVectorLeafReader.java  |   2 +-
 .../join/PointInSetIncludingScoreQuery.java     |   4 +-
 .../apache/lucene/index/memory/MemoryIndex.java |  24 ++-
 .../apache/lucene/document/BigIntegerPoint.java |  10 +-
 .../apache/lucene/document/HalfFloatPoint.java  |  10 +-
 .../lucene/spatial/bbox/BBoxStrategy.java       |   2 +-
 .../spatial/vector/PointVectorStrategy.java     |   2 +-
 .../codecs/asserting/AssertingPointsFormat.java |   4 +-
 .../codecs/cranky/CrankyPointsFormat.java       |  12 +-
 .../lucene/index/AssertingLeafReader.java       |  41 +++--
 .../index/BaseIndexFileFormatTestCase.java      |   2 +-
 .../lucene/index/BasePointsFormatTestCase.java  |  76 +++++---
 .../lucene/index/MismatchedLeafReader.java      |   3 +-
 .../org/apache/lucene/index/RandomCodec.java    |   9 +-
 .../lucene/index/RandomPostingsTester.java      |   4 +-
 .../org/apache/lucene/util/LuceneTestCase.java  |  16 +-
 .../java/org/apache/lucene/util/TestUtil.java   |   2 +-
 .../solr/handler/component/ExpandComponent.java |   3 +-
 .../org/apache/solr/legacy/BBoxStrategy.java    |   2 +-
 .../apache/solr/legacy/PointVectorStrategy.java |   2 +-
 .../org/apache/solr/schema/SchemaField.java     |   7 +-
 .../solr/search/CollapsingQParserPlugin.java    |   2 +-
 .../java/org/apache/solr/search/Insanity.java   |   2 +-
 .../apache/solr/uninverting/FieldCacheImpl.java |   6 +-
 .../solr/uninverting/UninvertingReader.java     |   6 +-
 .../solr/uninverting/TestUninvertingReader.java |   6 +-
 73 files changed, 892 insertions(+), 608 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/CHANGES.txt
----------------------------------------------------------------------
diff --git a/lucene/CHANGES.txt b/lucene/CHANGES.txt
index ad83ff9..80d341e 100644
--- a/lucene/CHANGES.txt
+++ b/lucene/CHANGES.txt
@@ -192,6 +192,14 @@ Bug fixes:
 * LUCENE-8479: QueryBuilder#analyzeGraphPhrase now throws TooManyClause exception
   if the number of expanded path reaches the BooleanQuery#maxClause limit. (Jim Ferenczi)
 
+New Features
+
+* LUCENE-8496: Selective indexing - modify BKDReader/BKDWriter to allow users
+  to select a fewer number of dimensions to be used for creating the index than
+  the total number of dimensions used for field encoding. i.e., dimensions 0 to N
+  may be used to determine how to split the inner nodes, and dimensions N+1 to D
+  are ignored and stored as data dimensions at the leaves. (Nick Knize)
+
 ======================= Lucene 7.5.1 =======================
 
 Bug Fixes:

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/codecs/src/java/org/apache/lucene/codecs/simpletext/SimpleTextBKDReader.java
----------------------------------------------------------------------
diff --git a/lucene/codecs/src/java/org/apache/lucene/codecs/simpletext/SimpleTextBKDReader.java b/lucene/codecs/src/java/org/apache/lucene/codecs/simpletext/SimpleTextBKDReader.java
index b7af45a..5227d6d 100644
--- a/lucene/codecs/src/java/org/apache/lucene/codecs/simpletext/SimpleTextBKDReader.java
+++ b/lucene/codecs/src/java/org/apache/lucene/codecs/simpletext/SimpleTextBKDReader.java
@@ -41,7 +41,8 @@ final class SimpleTextBKDReader extends PointValues implements Accountable {
   final private byte[] splitPackedValues; 
   final long[] leafBlockFPs;
   final private int leafNodeOffset;
-  final int numDims;
+  final int numDataDims;
+  final int numIndexDims;
   final int bytesPerDim;
   final int bytesPerIndexEntry;
   final IndexInput in;
@@ -52,16 +53,19 @@ final class SimpleTextBKDReader extends PointValues implements Accountable {
   final int docCount;
   final int version;
   protected final int packedBytesLength;
+  protected final int packedIndexBytesLength;
 
-  public SimpleTextBKDReader(IndexInput in, int numDims, int maxPointsInLeafNode, int bytesPerDim, long[] leafBlockFPs, byte[] splitPackedValues,
+  public SimpleTextBKDReader(IndexInput in, int numDataDims, int numIndexDims, int maxPointsInLeafNode, int bytesPerDim, long[] leafBlockFPs, byte[] splitPackedValues,
                              byte[] minPackedValue, byte[] maxPackedValue, long pointCount, int docCount) throws IOException {
     this.in = in;
-    this.numDims = numDims;
+    this.numDataDims = numDataDims;
+    this.numIndexDims = numIndexDims;
     this.maxPointsInLeafNode = maxPointsInLeafNode;
     this.bytesPerDim = bytesPerDim;
     // no version check here because callers of this API (SimpleText) have no back compat:
-    bytesPerIndexEntry = numDims == 1 ? bytesPerDim : bytesPerDim + 1;
-    packedBytesLength = numDims * bytesPerDim;
+    bytesPerIndexEntry = numIndexDims == 1 ? bytesPerDim : bytesPerDim + 1;
+    packedBytesLength = numDataDims * bytesPerDim;
+    packedIndexBytesLength = numIndexDims * bytesPerDim;
     this.leafNodeOffset = leafBlockFPs.length;
     this.leafBlockFPs = leafBlockFPs;
     this.splitPackedValues = splitPackedValues;
@@ -70,8 +74,8 @@ final class SimpleTextBKDReader extends PointValues implements Accountable {
     this.pointCount = pointCount;
     this.docCount = docCount;
     this.version = SimpleTextBKDWriter.VERSION_CURRENT;
-    assert minPackedValue.length == packedBytesLength;
-    assert maxPackedValue.length == packedBytesLength;
+    assert minPackedValue.length == packedIndexBytesLength;
+    assert maxPackedValue.length == packedIndexBytesLength;
   }
 
   /** Used to track all state for a single call to {@link #intersect}. */
@@ -115,7 +119,7 @@ final class SimpleTextBKDReader extends PointValues implements Accountable {
 
   /** Create a new {@link IntersectState} */
   public IntersectState getIntersectState(IntersectVisitor visitor) {
-    return new IntersectState(in.clone(), numDims,
+    return new IntersectState(in.clone(), numDataDims,
                               packedBytesLength,
                               maxPointsInLeafNode,
                               visitor);
@@ -181,7 +185,7 @@ final class SimpleTextBKDReader extends PointValues implements Accountable {
       scratchPackedValue[compressedByteOffset] = in.readByte();
       final int runLen = Byte.toUnsignedInt(in.readByte());
       for (int j = 0; j < runLen; ++j) {
-        for(int dim=0;dim<numDims;dim++) {
+        for(int dim=0;dim<numDataDims;dim++) {
           int prefix = commonPrefixLengths[dim];
           in.readBytes(scratchPackedValue, dim*bytesPerDim + prefix, bytesPerDim - prefix);
         }
@@ -196,14 +200,14 @@ final class SimpleTextBKDReader extends PointValues implements Accountable {
 
   private int readCompressedDim(IndexInput in) throws IOException {
     int compressedDim = in.readByte();
-    if (compressedDim < -1 || compressedDim >= numDims) {
+    if (compressedDim < -1 || compressedDim >= numIndexDims) {
       throw new CorruptIndexException("Got compressedDim="+compressedDim, in);
     }
     return compressedDim;
   }
 
   private void readCommonPrefixes(int[] commonPrefixLengths, byte[] scratchPackedValue, IndexInput in) throws IOException {
-    for(int dim=0;dim<numDims;dim++) {
+    for(int dim=0;dim<numDataDims;dim++) {
       int prefix = in.readVInt();
       commonPrefixLengths[dim] = prefix;
       if (prefix > 0) {
@@ -258,27 +262,27 @@ final class SimpleTextBKDReader extends PointValues implements Accountable {
 
       int address = nodeID * bytesPerIndexEntry;
       int splitDim;
-      if (numDims == 1) {
+      if (numIndexDims == 1) {
         splitDim = 0;
       } else {
         splitDim = splitPackedValues[address++] & 0xff;
       }
       
-      assert splitDim < numDims;
+      assert splitDim < numIndexDims;
 
       // TODO: can we alloc & reuse this up front?
 
-      byte[] splitPackedValue = new byte[packedBytesLength];
+      byte[] splitPackedValue = new byte[packedIndexBytesLength];
 
       // Recurse on left sub-tree:
-      System.arraycopy(cellMaxPacked, 0, splitPackedValue, 0, packedBytesLength);
+      System.arraycopy(cellMaxPacked, 0, splitPackedValue, 0, packedIndexBytesLength);
       System.arraycopy(splitPackedValues, address, splitPackedValue, splitDim*bytesPerDim, bytesPerDim);
       intersect(state,
                 2*nodeID,
                 cellMinPacked, splitPackedValue);
 
       // Recurse on right sub-tree:
-      System.arraycopy(cellMinPacked, 0, splitPackedValue, 0, packedBytesLength);
+      System.arraycopy(cellMinPacked, 0, splitPackedValue, 0, packedIndexBytesLength);
       System.arraycopy(splitPackedValues, address, splitPackedValue, splitDim*bytesPerDim, bytesPerDim);
       intersect(state,
                 2*nodeID+1,
@@ -307,27 +311,27 @@ final class SimpleTextBKDReader extends PointValues implements Accountable {
 
       int address = nodeID * bytesPerIndexEntry;
       int splitDim;
-      if (numDims == 1) {
+      if (numIndexDims == 1) {
         splitDim = 0;
       } else {
         splitDim = splitPackedValues[address++] & 0xff;
       }
       
-      assert splitDim < numDims;
+      assert splitDim < numIndexDims;
 
       // TODO: can we alloc & reuse this up front?
 
-      byte[] splitPackedValue = new byte[packedBytesLength];
+      byte[] splitPackedValue = new byte[packedIndexBytesLength];
 
       // Recurse on left sub-tree:
-      System.arraycopy(cellMaxPacked, 0, splitPackedValue, 0, packedBytesLength);
+      System.arraycopy(cellMaxPacked, 0, splitPackedValue, 0, packedIndexBytesLength);
       System.arraycopy(splitPackedValues, address, splitPackedValue, splitDim*bytesPerDim, bytesPerDim);
       final long leftCost = estimatePointCount(state,
                 2*nodeID,
                 cellMinPacked, splitPackedValue);
 
       // Recurse on right sub-tree:
-      System.arraycopy(cellMinPacked, 0, splitPackedValue, 0, packedBytesLength);
+      System.arraycopy(cellMinPacked, 0, splitPackedValue, 0, packedIndexBytesLength);
       System.arraycopy(splitPackedValues, address, splitPackedValue, splitDim*bytesPerDim, bytesPerDim);
       final long rightCost = estimatePointCount(state,
                 2*nodeID+1,
@@ -340,13 +344,13 @@ final class SimpleTextBKDReader extends PointValues implements Accountable {
   public void copySplitValue(int nodeID, byte[] splitPackedValue) {
     int address = nodeID * bytesPerIndexEntry;
     int splitDim;
-    if (numDims == 1) {
+    if (numIndexDims == 1) {
       splitDim = 0;
     } else {
       splitDim = splitPackedValues[address++] & 0xff;
     }
     
-    assert splitDim < numDims;
+    assert splitDim < numIndexDims;
     System.arraycopy(splitPackedValues, address, splitPackedValue, splitDim*bytesPerDim, bytesPerDim);
   }
 
@@ -367,8 +371,13 @@ final class SimpleTextBKDReader extends PointValues implements Accountable {
   }
 
   @Override
-  public int getNumDimensions() {
-    return numDims;
+  public int getNumDataDimensions() {
+    return numDataDims;
+  }
+
+  @Override
+  public int getNumIndexDimensions() {
+    return numIndexDims;
   }
 
   @Override

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/codecs/src/java/org/apache/lucene/codecs/simpletext/SimpleTextBKDWriter.java
----------------------------------------------------------------------
diff --git a/lucene/codecs/src/java/org/apache/lucene/codecs/simpletext/SimpleTextBKDWriter.java b/lucene/codecs/src/java/org/apache/lucene/codecs/simpletext/SimpleTextBKDWriter.java
index 1ddc111..f45209c 100644
--- a/lucene/codecs/src/java/org/apache/lucene/codecs/simpletext/SimpleTextBKDWriter.java
+++ b/lucene/codecs/src/java/org/apache/lucene/codecs/simpletext/SimpleTextBKDWriter.java
@@ -62,7 +62,8 @@ import static org.apache.lucene.codecs.simpletext.SimpleTextPointsWriter.INDEX_C
 import static org.apache.lucene.codecs.simpletext.SimpleTextPointsWriter.MAX_LEAF_POINTS;
 import static org.apache.lucene.codecs.simpletext.SimpleTextPointsWriter.MAX_VALUE;
 import static org.apache.lucene.codecs.simpletext.SimpleTextPointsWriter.MIN_VALUE;
-import static org.apache.lucene.codecs.simpletext.SimpleTextPointsWriter.NUM_DIMS;
+import static org.apache.lucene.codecs.simpletext.SimpleTextPointsWriter.NUM_DATA_DIMS;
+import static org.apache.lucene.codecs.simpletext.SimpleTextPointsWriter.NUM_INDEX_DIMS;
 import static org.apache.lucene.codecs.simpletext.SimpleTextPointsWriter.POINT_COUNT;
 import static org.apache.lucene.codecs.simpletext.SimpleTextPointsWriter.SPLIT_COUNT;
 import static org.apache.lucene.codecs.simpletext.SimpleTextPointsWriter.SPLIT_DIM;
@@ -102,15 +103,21 @@ final class SimpleTextBKDWriter implements Closeable {
   /** Maximum number of dimensions */
   public static final int MAX_DIMS = 8;
 
-  /** How many dimensions we are indexing */
-  protected final int numDims;
+  /** How many dimensions we are storing at the leaf (data) nodes */
+  protected final int numDataDims;
+
+  /** How many dimensions we are indexing in the internal nodes */
+  protected final int numIndexDims;
 
   /** How many bytes each value in each dimension takes. */
   protected final int bytesPerDim;
 
-  /** numDims * bytesPerDim */
+  /** numDataDims * bytesPerDim */
   protected final int packedBytesLength;
 
+  /** numIndexDims * bytesPerDim */
+  protected final int packedIndexBytesLength;
+
   final BytesRefBuilder scratch = new BytesRefBuilder();
 
   final TrackingDirectoryWrapper tempDir;
@@ -158,37 +165,39 @@ final class SimpleTextBKDWriter implements Closeable {
 
   private final int maxDoc;
 
-  public SimpleTextBKDWriter(int maxDoc, Directory tempDir, String tempFileNamePrefix, int numDims, int bytesPerDim,
+  public SimpleTextBKDWriter(int maxDoc, Directory tempDir, String tempFileNamePrefix, int numDataDims, int numIndexDims, int bytesPerDim,
                              int maxPointsInLeafNode, double maxMBSortInHeap, long totalPointCount, boolean singleValuePerDoc) throws IOException {
-    this(maxDoc, tempDir, tempFileNamePrefix, numDims, bytesPerDim, maxPointsInLeafNode, maxMBSortInHeap, totalPointCount, singleValuePerDoc,
+    this(maxDoc, tempDir, tempFileNamePrefix, numDataDims, numIndexDims, bytesPerDim, maxPointsInLeafNode, maxMBSortInHeap, totalPointCount, singleValuePerDoc,
          totalPointCount > Integer.MAX_VALUE, Math.max(1, (long) maxMBSortInHeap), OfflineSorter.MAX_TEMPFILES);
   }
 
-  private SimpleTextBKDWriter(int maxDoc, Directory tempDir, String tempFileNamePrefix, int numDims, int bytesPerDim,
+  private SimpleTextBKDWriter(int maxDoc, Directory tempDir, String tempFileNamePrefix, int numDataDims, int numIndexDims, int bytesPerDim,
                               int maxPointsInLeafNode, double maxMBSortInHeap, long totalPointCount,
                               boolean singleValuePerDoc, boolean longOrds, long offlineSorterBufferMB, int offlineSorterMaxTempFiles) throws IOException {
-    verifyParams(numDims, maxPointsInLeafNode, maxMBSortInHeap, totalPointCount);
+    verifyParams(numDataDims, numIndexDims, maxPointsInLeafNode, maxMBSortInHeap, totalPointCount);
     // We use tracking dir to deal with removing files on exception, so each place that
     // creates temp files doesn't need crazy try/finally/sucess logic:
     this.tempDir = new TrackingDirectoryWrapper(tempDir);
     this.tempFileNamePrefix = tempFileNamePrefix;
     this.maxPointsInLeafNode = maxPointsInLeafNode;
-    this.numDims = numDims;
+    this.numDataDims = numDataDims;
+    this.numIndexDims = numIndexDims;
     this.bytesPerDim = bytesPerDim;
     this.totalPointCount = totalPointCount;
     this.maxDoc = maxDoc;
     this.offlineSorterBufferMB = OfflineSorter.BufferSize.megabytes(offlineSorterBufferMB);
     this.offlineSorterMaxTempFiles = offlineSorterMaxTempFiles;
     docsSeen = new FixedBitSet(maxDoc);
-    packedBytesLength = numDims * bytesPerDim;
+    packedBytesLength = numDataDims * bytesPerDim;
+    packedIndexBytesLength = numIndexDims * bytesPerDim;
 
     scratchDiff = new byte[bytesPerDim];
     scratch1 = new byte[packedBytesLength];
     scratch2 = new byte[packedBytesLength];
-    commonPrefixLengths = new int[numDims];
+    commonPrefixLengths = new int[numDataDims];
 
-    minPackedValue = new byte[packedBytesLength];
-    maxPackedValue = new byte[packedBytesLength];
+    minPackedValue = new byte[packedIndexBytesLength];
+    maxPackedValue = new byte[packedIndexBytesLength];
 
     // If we may have more than 1+Integer.MAX_VALUE values, then we must encode ords with long (8 bytes), else we can use int (4 bytes).
     this.longOrds = longOrds;
@@ -215,7 +224,7 @@ final class SimpleTextBKDWriter implements Closeable {
     // bytes to points here.  Each dimension has its own sorted partition, so
     // we must divide by numDims as wel.
 
-    maxPointsSortInHeap = (int) (0.5 * (maxMBSortInHeap * 1024 * 1024) / (bytesPerDoc * numDims));
+    maxPointsSortInHeap = (int) (0.5 * (maxMBSortInHeap * 1024 * 1024) / (bytesPerDoc * numDataDims));
 
     // Finally, we must be able to hold at least the leaf node in heap during build:
     if (maxPointsSortInHeap < maxPointsInLeafNode) {
@@ -228,11 +237,14 @@ final class SimpleTextBKDWriter implements Closeable {
     this.maxMBSortInHeap = maxMBSortInHeap;
   }
 
-  public static void verifyParams(int numDims, int maxPointsInLeafNode, double maxMBSortInHeap, long totalPointCount) {
+  public static void verifyParams(int numDataDims, int numIndexDims, int maxPointsInLeafNode, double maxMBSortInHeap, long totalPointCount) {
     // We encode dim in a single byte in the splitPackedValues, but we only expose 4 bits for it now, in case we want to use
     // remaining 4 bits for another purpose later
-    if (numDims < 1 || numDims > MAX_DIMS) {
-      throw new IllegalArgumentException("numDims must be 1 .. " + MAX_DIMS + " (got: " + numDims + ")");
+    if (numDataDims < 1 || numDataDims > MAX_DIMS) {
+      throw new IllegalArgumentException("numDataDims must be 1 .. " + MAX_DIMS + " (got: " + numDataDims + ")");
+    }
+    if (numIndexDims < 1 || numIndexDims > numDataDims) {
+      throw new IllegalArgumentException("numIndexDims must be 1 .. " + numDataDims + " (got: " + numIndexDims + ")");
     }
     if (maxPointsInLeafNode <= 0) {
       throw new IllegalArgumentException("maxPointsInLeafNode must be > 0; got " + maxPointsInLeafNode);
@@ -281,10 +293,10 @@ final class SimpleTextBKDWriter implements Closeable {
 
     // TODO: we could specialize for the 1D case:
     if (pointCount == 0) {
-      System.arraycopy(packedValue, 0, minPackedValue, 0, packedBytesLength);
-      System.arraycopy(packedValue, 0, maxPackedValue, 0, packedBytesLength);
+      System.arraycopy(packedValue, 0, minPackedValue, 0, packedIndexBytesLength);
+      System.arraycopy(packedValue, 0, maxPackedValue, 0, packedIndexBytesLength);
     } else {
-      for(int dim=0;dim<numDims;dim++) {
+      for(int dim=0;dim<numIndexDims;dim++) {
         int offset = dim*bytesPerDim;
         if (FutureArrays.compareUnsigned(packedValue, offset, offset + bytesPerDim, minPackedValue, offset, offset + bytesPerDim) < 0) {
           System.arraycopy(packedValue, offset, minPackedValue, offset, bytesPerDim);
@@ -313,7 +325,7 @@ final class SimpleTextBKDWriter implements Closeable {
    *  disk. This method does not use transient disk in order to reorder points.
    */
   public long writeField(IndexOutput out, String fieldName, MutablePointValues reader) throws IOException {
-    if (numDims == 1) {
+    if (numIndexDims == 1) {
       return writeField1Dim(out, fieldName, reader);
     } else {
       return writeFieldNDims(out, fieldName, reader);
@@ -356,7 +368,7 @@ final class SimpleTextBKDWriter implements Closeable {
     Arrays.fill(maxPackedValue, (byte) 0);
     for (int i = 0; i < Math.toIntExact(pointCount); ++i) {
       values.getValue(i, scratchBytesRef1);
-      for(int dim=0;dim<numDims;dim++) {
+      for(int dim=0;dim<numIndexDims;dim++) {
         int offset = dim*bytesPerDim;
         if (FutureArrays.compareUnsigned(scratchBytesRef1.bytes, scratchBytesRef1.offset + offset, scratchBytesRef1.offset + offset + bytesPerDim, minPackedValue, offset, offset + bytesPerDim) < 0) {
           System.arraycopy(scratchBytesRef1.bytes, scratchBytesRef1.offset + offset, minPackedValue, offset, bytesPerDim);
@@ -382,7 +394,7 @@ final class SimpleTextBKDWriter implements Closeable {
   /* In the 1D case, we can simply sort points in ascending order and use the
    * same writing logic as we use at merge time. */
   private long writeField1Dim(IndexOutput out, String fieldName, MutablePointValues reader) throws IOException {
-    MutablePointsReaderUtils.sort(maxDoc, packedBytesLength, reader, 0, Math.toIntExact(reader.size()));
+    MutablePointsReaderUtils.sort(maxDoc, packedIndexBytesLength, reader, 0, Math.toIntExact(reader.size()));
 
     final OneDimensionBKDWriter oneDimWriter = new OneDimensionBKDWriter(out);
 
@@ -418,8 +430,8 @@ final class SimpleTextBKDWriter implements Closeable {
     int leafCount;
 
     OneDimensionBKDWriter(IndexOutput out) {
-      if (numDims != 1) {
-        throw new UnsupportedOperationException("numDims must be 1 but got " + numDims);
+      if (numIndexDims != 1) {
+        throw new UnsupportedOperationException("numIndexDims must be 1 but got " + numIndexDims);
       }
       if (pointCount != 0) {
         throw new IllegalStateException("cannot mix add and merge");
@@ -497,9 +509,9 @@ final class SimpleTextBKDWriter implements Closeable {
     private void writeLeafBlock() throws IOException {
       assert leafCount != 0;
       if (valueCount == 0) {
-        System.arraycopy(leafValues, 0, minPackedValue, 0, packedBytesLength);
+        System.arraycopy(leafValues, 0, minPackedValue, 0, packedIndexBytesLength);
       }
-      System.arraycopy(leafValues, (leafCount - 1) * packedBytesLength, maxPackedValue, 0, packedBytesLength);
+      System.arraycopy(leafValues, (leafCount - 1) * packedBytesLength, maxPackedValue, 0, packedIndexBytesLength);
 
       valueCount += leafCount;
 
@@ -512,7 +524,7 @@ final class SimpleTextBKDWriter implements Closeable {
 
       Arrays.fill(commonPrefixLengths, bytesPerDim);
       // Find per-dim common prefix:
-      for(int dim=0;dim<numDims;dim++) {
+      for(int dim=0;dim<numDataDims;dim++) {
         int offset1 = dim * bytesPerDim;
         int offset2 = (leafCount - 1) * packedBytesLength + offset1;
         for(int j=0;j<commonPrefixLengths[dim];j++) {
@@ -658,7 +670,7 @@ final class SimpleTextBKDWriter implements Closeable {
   }
 
   private PointWriter sort(int dim) throws IOException {
-    assert dim >= 0 && dim < numDims;
+    assert dim >= 0 && dim < numDataDims;
 
     if (heapPointWriter != null) {
 
@@ -691,7 +703,7 @@ final class SimpleTextBKDWriter implements Closeable {
       final int offset = bytesPerDim * dim;
 
       Comparator<BytesRef> cmp;
-      if (dim == numDims - 1) {
+      if (dim == numDataDims - 1) {
         // in that case the bytes for the dimension and for the doc id are contiguous,
         // so we don't need a branch
         cmp = new BytesRefComparator(bytesPerDim + Integer.BYTES) {
@@ -776,7 +788,7 @@ final class SimpleTextBKDWriter implements Closeable {
     }
 
     LongBitSet ordBitSet;
-    if (numDims > 1) {
+    if (numDataDims > 1) {
       if (singleValuePerDoc) {
         ordBitSet = new LongBitSet(maxDoc);
       } else {
@@ -811,7 +823,7 @@ final class SimpleTextBKDWriter implements Closeable {
     assert pointCount / numLeaves <= maxPointsInLeafNode: "pointCount=" + pointCount + " numLeaves=" + numLeaves + " maxPointsInLeafNode=" + maxPointsInLeafNode;
 
     // Sort all docs once by each dimension:
-    PathSlice[] sortedPointWriters = new PathSlice[numDims];
+    PathSlice[] sortedPointWriters = new PathSlice[numDataDims];
 
     // This is only used on exception; on normal code paths we close all files we opened:
     List<Closeable> toCloseHeroically = new ArrayList<>();
@@ -819,7 +831,7 @@ final class SimpleTextBKDWriter implements Closeable {
     boolean success = false;
     try {
       //long t0 = System.nanoTime();
-      for(int dim=0;dim<numDims;dim++) {
+      for(int dim=0;dim<numDataDims;dim++) {
         sortedPointWriters[dim] = new PathSlice(sort(dim), 0, pointCount);
       }
       //long t1 = System.nanoTime();
@@ -867,8 +879,12 @@ final class SimpleTextBKDWriter implements Closeable {
 
   /** Subclass can change how it writes the index. */
   private void writeIndex(IndexOutput out, long[] leafBlockFPs, byte[] splitPackedValues) throws IOException {
-    write(out, NUM_DIMS);
-    writeInt(out, numDims);
+    write(out, NUM_DATA_DIMS);
+    writeInt(out, numDataDims);
+    newline(out);
+
+    write(out, NUM_INDEX_DIMS);
+    writeInt(out, numIndexDims);
     newline(out);
 
     write(out, BYTES_PER_DIM);
@@ -952,7 +968,7 @@ final class SimpleTextBKDWriter implements Closeable {
       BytesRef ref = packedValues.apply(i);
       assert ref.length == packedBytesLength;
 
-      for(int dim=0;dim<numDims;dim++) {
+      for(int dim=0;dim<numDataDims;dim++) {
         int prefix = commonPrefixLengths[dim];
         out.writeBytes(ref.bytes, ref.offset + dim*bytesPerDim + prefix, bytesPerDim-prefix);
       }
@@ -1036,7 +1052,7 @@ final class SimpleTextBKDWriter implements Closeable {
       boolean result = reader.next();
       assert result;
       System.arraycopy(reader.packedValue(), splitDim*bytesPerDim, scratch1, 0, bytesPerDim);
-      if (numDims > 1) {
+      if (numDataDims > 1) {
         assert ordBitSet.get(reader.ord()) == false;
         ordBitSet.set(reader.ord());
         // Subtract 1 from rightCount because we already did the first value above (so we could record the split value):
@@ -1051,7 +1067,7 @@ final class SimpleTextBKDWriter implements Closeable {
 
   /** Called only in assert */
   private boolean valueInBounds(BytesRef packedValue, byte[] minPackedValue, byte[] maxPackedValue) {
-    for(int dim=0;dim<numDims;dim++) {
+    for(int dim=0;dim<numIndexDims;dim++) {
       int offset = bytesPerDim*dim;
       if (FutureArrays.compareUnsigned(packedValue.bytes, packedValue.offset + offset, packedValue.offset + offset + bytesPerDim, minPackedValue, offset, offset + bytesPerDim) < 0) {
         return false;
@@ -1067,7 +1083,7 @@ final class SimpleTextBKDWriter implements Closeable {
   protected int split(byte[] minPackedValue, byte[] maxPackedValue) {
     // Find which dim has the largest span so we can split on it:
     int splitDim = -1;
-    for(int dim=0;dim<numDims;dim++) {
+    for(int dim=0;dim<numIndexDims;dim++) {
       NumericUtils.subtract(bytesPerDim, dim, maxPackedValue, minPackedValue, scratchDiff);
       if (splitDim == -1 || FutureArrays.compareUnsigned(scratchDiff, 0, bytesPerDim, scratch1, 0, bytesPerDim) > 0) {
         System.arraycopy(scratchDiff, 0, scratch1, 0, bytesPerDim);
@@ -1115,7 +1131,7 @@ final class SimpleTextBKDWriter implements Closeable {
       reader.getValue(from, scratchBytesRef1);
       for (int i = from + 1; i < to; ++i) {
         reader.getValue(i, scratchBytesRef2);
-        for (int dim=0;dim<numDims;dim++) {
+        for (int dim=0;dim<numDataDims;dim++) {
           final int offset = dim * bytesPerDim;
           for(int j=0;j<commonPrefixLengths[dim];j++) {
             if (scratchBytesRef1.bytes[scratchBytesRef1.offset+offset+j] != scratchBytesRef2.bytes[scratchBytesRef2.offset+offset+j]) {
@@ -1127,14 +1143,14 @@ final class SimpleTextBKDWriter implements Closeable {
       }
 
       // Find the dimension that has the least number of unique bytes at commonPrefixLengths[dim]
-      FixedBitSet[] usedBytes = new FixedBitSet[numDims];
-      for (int dim = 0; dim < numDims; ++dim) {
+      FixedBitSet[] usedBytes = new FixedBitSet[numDataDims];
+      for (int dim = 0; dim < numDataDims; ++dim) {
         if (commonPrefixLengths[dim] < bytesPerDim) {
           usedBytes[dim] = new FixedBitSet(256);
         }
       }
       for (int i = from + 1; i < to; ++i) {
-        for (int dim=0;dim<numDims;dim++) {
+        for (int dim=0;dim<numDataDims;dim++) {
           if (usedBytes[dim] != null) {
             byte b = reader.getByteAt(i, dim * bytesPerDim + commonPrefixLengths[dim]);
             usedBytes[dim].set(Byte.toUnsignedInt(b));
@@ -1143,7 +1159,7 @@ final class SimpleTextBKDWriter implements Closeable {
       }
       int sortedDim = 0;
       int sortedDimCardinality = Integer.MAX_VALUE;
-      for (int dim = 0; dim < numDims; ++dim) {
+      for (int dim = 0; dim < numDataDims; ++dim) {
         if (usedBytes[dim] != null) {
           final int cardinality = usedBytes[dim].cardinality();
           if (cardinality < sortedDimCardinality) {
@@ -1206,8 +1222,8 @@ final class SimpleTextBKDWriter implements Closeable {
       reader.getValue(mid, scratchBytesRef1);
       System.arraycopy(scratchBytesRef1.bytes, scratchBytesRef1.offset + splitDim * bytesPerDim, splitPackedValues, address + 1, bytesPerDim);
 
-      byte[] minSplitPackedValue = ArrayUtil.copyOfSubArray(minPackedValue, 0, packedBytesLength);
-      byte[] maxSplitPackedValue = ArrayUtil.copyOfSubArray(maxPackedValue, 0, packedBytesLength);
+      byte[] minSplitPackedValue = ArrayUtil.copyOfSubArray(minPackedValue, 0, packedIndexBytesLength);
+      byte[] maxSplitPackedValue = ArrayUtil.copyOfSubArray(maxPackedValue, 0, packedIndexBytesLength);
       System.arraycopy(scratchBytesRef1.bytes, scratchBytesRef1.offset + splitDim * bytesPerDim,
           minSplitPackedValue, splitDim * bytesPerDim, bytesPerDim);
       System.arraycopy(scratchBytesRef1.bytes, scratchBytesRef1.offset + splitDim * bytesPerDim,
@@ -1235,7 +1251,7 @@ final class SimpleTextBKDWriter implements Closeable {
       assert slice.count == slices[0].count;
     }
 
-    if (numDims == 1 && slices[0].writer instanceof OfflinePointWriter && slices[0].count <= maxPointsSortInHeap) {
+    if (numDataDims == 1 && slices[0].writer instanceof OfflinePointWriter && slices[0].count <= maxPointsSortInHeap) {
       // Special case for 1D, to cutover to heap once we recurse deeply enough:
       slices[0] = switchToHeap(slices[0], toCloseHeroically);
     }
@@ -1248,7 +1264,7 @@ final class SimpleTextBKDWriter implements Closeable {
       int sortedDim = 0;
       int sortedDimCardinality = Integer.MAX_VALUE;
 
-      for (int dim=0;dim<numDims;dim++) {
+      for (int dim=0;dim<numDataDims;dim++) {
         if (slices[dim].writer instanceof HeapPointWriter == false) {
           // Adversarial cases can cause this, e.g. very lopsided data, all equal points, such that we started
           // offline, but then kept splitting only in one dimension, and so never had to rewrite into heap writer
@@ -1333,7 +1349,7 @@ final class SimpleTextBKDWriter implements Closeable {
       // Inner node: partition/recurse
 
       int splitDim;
-      if (numDims > 1) {
+      if (numIndexDims > 1) {
         splitDim = split(minPackedValue, maxPackedValue);
       } else {
         splitDim = 0;
@@ -1354,24 +1370,24 @@ final class SimpleTextBKDWriter implements Closeable {
 
       // Partition all PathSlice that are not the split dim into sorted left and right sets, so we can recurse:
 
-      PathSlice[] leftSlices = new PathSlice[numDims];
-      PathSlice[] rightSlices = new PathSlice[numDims];
+      PathSlice[] leftSlices = new PathSlice[numDataDims];
+      PathSlice[] rightSlices = new PathSlice[numDataDims];
 
-      byte[] minSplitPackedValue = new byte[packedBytesLength];
-      System.arraycopy(minPackedValue, 0, minSplitPackedValue, 0, packedBytesLength);
+      byte[] minSplitPackedValue = new byte[packedIndexBytesLength];
+      System.arraycopy(minPackedValue, 0, minSplitPackedValue, 0, packedIndexBytesLength);
 
-      byte[] maxSplitPackedValue = new byte[packedBytesLength];
-      System.arraycopy(maxPackedValue, 0, maxSplitPackedValue, 0, packedBytesLength);
+      byte[] maxSplitPackedValue = new byte[packedIndexBytesLength];
+      System.arraycopy(maxPackedValue, 0, maxSplitPackedValue, 0, packedIndexBytesLength);
 
       // When we are on this dim, below, we clear the ordBitSet:
       int dimToClear;
-      if (numDims - 1 == splitDim) {
-        dimToClear = numDims - 2;
+      if (numDataDims - 1 == splitDim) {
+        dimToClear = numDataDims - 2;
       } else {
-        dimToClear = numDims - 1;
+        dimToClear = numDataDims - 1;
       }
 
-      for(int dim=0;dim<numDims;dim++) {
+      for(int dim=0;dim<numDataDims;dim++) {
 
         if (dim == splitDim) {
           // No need to partition on this dim since it's a simple slice of the incoming already sorted slice, and we
@@ -1392,7 +1408,7 @@ final class SimpleTextBKDWriter implements Closeable {
 
           long nextRightCount = reader.split(source.count, ordBitSet, leftPointWriter, rightPointWriter, dim == dimToClear);
           if (rightCount != nextRightCount) {
-            throw new IllegalStateException("wrong number of points in split: expected=" + rightCount + " but actual=" + nextRightCount);
+            throw new IllegalStateException("wrong number of points in split: expected=" + rightCount + " but actual=" + nextRightCount + " in dim " + dim);
           }
 
           leftSlices[dim] = new PathSlice(leftPointWriter, 0, leftCount);
@@ -1407,7 +1423,7 @@ final class SimpleTextBKDWriter implements Closeable {
             ordBitSet, out,
             minPackedValue, maxSplitPackedValue,
             splitPackedValues, leafBlockFPs, toCloseHeroically);
-      for(int dim=0;dim<numDims;dim++) {
+      for(int dim=0;dim<numDataDims;dim++) {
         // Don't destroy the dim we split on because we just re-used what our caller above gave us for that dim:
         if (dim != splitDim) {
           leftSlices[dim].writer.destroy();
@@ -1420,7 +1436,7 @@ final class SimpleTextBKDWriter implements Closeable {
             ordBitSet, out,
             minSplitPackedValue, maxPackedValue,
             splitPackedValues, leafBlockFPs, toCloseHeroically);
-      for(int dim=0;dim<numDims;dim++) {
+      for(int dim=0;dim<numDataDims;dim++) {
         // Don't destroy the dim we split on because we just re-used what our caller above gave us for that dim:
         if (dim != splitDim) {
           rightSlices[dim].writer.destroy();
@@ -1454,10 +1470,10 @@ final class SimpleTextBKDWriter implements Closeable {
     if (ord > 0) {
       int cmp = FutureArrays.compareUnsigned(lastPackedValue, dimOffset, dimOffset + bytesPerDim, packedValue, packedValueOffset + dimOffset, packedValueOffset + dimOffset + bytesPerDim);
       if (cmp > 0) {
-        throw new AssertionError("values out of order: last value=" + new BytesRef(lastPackedValue) + " current value=" + new BytesRef(packedValue, packedValueOffset, packedBytesLength) + " ord=" + ord);
+        throw new AssertionError("values out of order: last value=" + new BytesRef(lastPackedValue) + " current value=" + new BytesRef(packedValue, packedValueOffset, packedBytesLength) + " ord=" + ord + " sortedDim=" + sortedDim);
       }
       if (cmp == 0 && doc < lastDoc) {
-        throw new AssertionError("docs out of order: last doc=" + lastDoc + " current doc=" + doc + " ord=" + ord);
+        throw new AssertionError("docs out of order: last doc=" + lastDoc + " current doc=" + doc + " ord=" + ord + " sortedDim=" + sortedDim);
       }
     }
     System.arraycopy(packedValue, packedValueOffset, lastPackedValue, 0, packedBytesLength);

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/codecs/src/java/org/apache/lucene/codecs/simpletext/SimpleTextFieldInfosFormat.java
----------------------------------------------------------------------
diff --git a/lucene/codecs/src/java/org/apache/lucene/codecs/simpletext/SimpleTextFieldInfosFormat.java b/lucene/codecs/src/java/org/apache/lucene/codecs/simpletext/SimpleTextFieldInfosFormat.java
index 1c40cbd..f52a84a 100644
--- a/lucene/codecs/src/java/org/apache/lucene/codecs/simpletext/SimpleTextFieldInfosFormat.java
+++ b/lucene/codecs/src/java/org/apache/lucene/codecs/simpletext/SimpleTextFieldInfosFormat.java
@@ -64,7 +64,8 @@ public class SimpleTextFieldInfosFormat extends FieldInfosFormat {
   static final BytesRef NUM_ATTS        =  new BytesRef("  attributes ");
   static final BytesRef ATT_KEY         =  new BytesRef("    key ");
   static final BytesRef ATT_VALUE       =  new BytesRef("    value ");
-  static final BytesRef DIM_COUNT       =  new BytesRef("  dimensional count ");
+  static final BytesRef DATA_DIM_COUNT  =  new BytesRef("  data dimensional count ");
+  static final BytesRef INDEX_DIM_COUNT =  new BytesRef("  index dimensional count ");
   static final BytesRef DIM_NUM_BYTES   =  new BytesRef("  dimensional num bytes ");
   static final BytesRef SOFT_DELETES    =  new BytesRef("  soft-deletes ");
   
@@ -134,8 +135,12 @@ public class SimpleTextFieldInfosFormat extends FieldInfosFormat {
         }
 
         SimpleTextUtil.readLine(input, scratch);
-        assert StringHelper.startsWith(scratch.get(), DIM_COUNT);
-        int dimensionalCount = Integer.parseInt(readString(DIM_COUNT.length, scratch));
+        assert StringHelper.startsWith(scratch.get(), DATA_DIM_COUNT);
+        int dataDimensionalCount = Integer.parseInt(readString(DATA_DIM_COUNT.length, scratch));
+
+        SimpleTextUtil.readLine(input, scratch);
+        assert StringHelper.startsWith(scratch.get(), INDEX_DIM_COUNT);
+        int indexDimensionalCount = Integer.parseInt(readString(INDEX_DIM_COUNT.length, scratch));
 
         SimpleTextUtil.readLine(input, scratch);
         assert StringHelper.startsWith(scratch.get(), DIM_NUM_BYTES);
@@ -147,7 +152,7 @@ public class SimpleTextFieldInfosFormat extends FieldInfosFormat {
 
         infos[i] = new FieldInfo(name, fieldNumber, storeTermVector, 
                                  omitNorms, storePayloads, indexOptions, docValuesType, dvGen, Collections.unmodifiableMap(atts),
-                                 dimensionalCount, dimensionalNumBytes, isSoftDeletesField);
+                                 dataDimensionalCount, indexDimensionalCount, dimensionalNumBytes, isSoftDeletesField);
       }
 
       SimpleTextUtil.checkFooter(input);
@@ -236,8 +241,12 @@ public class SimpleTextFieldInfosFormat extends FieldInfosFormat {
           }
         }
 
-        SimpleTextUtil.write(out, DIM_COUNT);
-        SimpleTextUtil.write(out, Integer.toString(fi.getPointDimensionCount()), scratch);
+        SimpleTextUtil.write(out, DATA_DIM_COUNT);
+        SimpleTextUtil.write(out, Integer.toString(fi.getPointDataDimensionCount()), scratch);
+        SimpleTextUtil.writeNewline(out);
+
+        SimpleTextUtil.write(out, INDEX_DIM_COUNT);
+        SimpleTextUtil.write(out, Integer.toString(fi.getPointIndexDimensionCount()), scratch);
         SimpleTextUtil.writeNewline(out);
         
         SimpleTextUtil.write(out, DIM_NUM_BYTES);

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/codecs/src/java/org/apache/lucene/codecs/simpletext/SimpleTextPointsReader.java
----------------------------------------------------------------------
diff --git a/lucene/codecs/src/java/org/apache/lucene/codecs/simpletext/SimpleTextPointsReader.java b/lucene/codecs/src/java/org/apache/lucene/codecs/simpletext/SimpleTextPointsReader.java
index 453bd23..728aad1 100644
--- a/lucene/codecs/src/java/org/apache/lucene/codecs/simpletext/SimpleTextPointsReader.java
+++ b/lucene/codecs/src/java/org/apache/lucene/codecs/simpletext/SimpleTextPointsReader.java
@@ -47,7 +47,8 @@ import static org.apache.lucene.codecs.simpletext.SimpleTextPointsWriter.INDEX_C
 import static org.apache.lucene.codecs.simpletext.SimpleTextPointsWriter.MAX_LEAF_POINTS;
 import static org.apache.lucene.codecs.simpletext.SimpleTextPointsWriter.MAX_VALUE;
 import static org.apache.lucene.codecs.simpletext.SimpleTextPointsWriter.MIN_VALUE;
-import static org.apache.lucene.codecs.simpletext.SimpleTextPointsWriter.NUM_DIMS;
+import static org.apache.lucene.codecs.simpletext.SimpleTextPointsWriter.NUM_DATA_DIMS;
+import static org.apache.lucene.codecs.simpletext.SimpleTextPointsWriter.NUM_INDEX_DIMS;
 import static org.apache.lucene.codecs.simpletext.SimpleTextPointsWriter.POINT_COUNT;
 import static org.apache.lucene.codecs.simpletext.SimpleTextPointsWriter.SPLIT_COUNT;
 import static org.apache.lucene.codecs.simpletext.SimpleTextPointsWriter.SPLIT_DIM;
@@ -101,7 +102,10 @@ class SimpleTextPointsReader extends PointsReader {
     // NOTE: matches what writeIndex does in SimpleTextPointsWriter
     dataIn.seek(fp);
     readLine(dataIn);
-    int numDims = parseInt(NUM_DIMS);
+    int numDataDims = parseInt(NUM_DATA_DIMS);
+
+    readLine(dataIn);
+    int numIndexDims = parseInt(NUM_INDEX_DIMS);
 
     readLine(dataIn);
     int bytesPerDim = parseInt(BYTES_PER_DIM);
@@ -115,12 +119,12 @@ class SimpleTextPointsReader extends PointsReader {
     readLine(dataIn);
     assert startsWith(MIN_VALUE);
     BytesRef minValue = SimpleTextUtil.fromBytesRefString(stripPrefix(MIN_VALUE));
-    assert minValue.length == numDims*bytesPerDim;
+    assert minValue.length == numIndexDims*bytesPerDim;
 
     readLine(dataIn);
     assert startsWith(MAX_VALUE);
     BytesRef maxValue = SimpleTextUtil.fromBytesRefString(stripPrefix(MAX_VALUE));
-    assert maxValue.length == numDims*bytesPerDim;
+    assert maxValue.length == numIndexDims*bytesPerDim;
 
     readLine(dataIn);
     assert startsWith(POINT_COUNT);
@@ -140,7 +144,7 @@ class SimpleTextPointsReader extends PointsReader {
 
     byte[] splitPackedValues;
     int bytesPerIndexEntry;
-    if (numDims == 1) {
+    if (numIndexDims == 1) {
       bytesPerIndexEntry = bytesPerDim;
     } else {
       bytesPerIndexEntry = 1 + bytesPerDim;
@@ -150,7 +154,7 @@ class SimpleTextPointsReader extends PointsReader {
       readLine(dataIn);
       int address = bytesPerIndexEntry * i;
       int splitDim = parseInt(SPLIT_DIM);
-      if (numDims != 1) {
+      if (numIndexDims != 1) {
         splitPackedValues[address++] = (byte) splitDim;
       }
       readLine(dataIn);
@@ -160,7 +164,7 @@ class SimpleTextPointsReader extends PointsReader {
       System.arraycopy(br.bytes, br.offset, splitPackedValues, address, bytesPerDim);
     }
 
-    return new SimpleTextBKDReader(dataIn, numDims, maxPointsInLeafNode, bytesPerDim, leafBlockFPs, splitPackedValues, minValue.bytes, maxValue.bytes, pointCount, docCount);
+    return new SimpleTextBKDReader(dataIn, numDataDims, numIndexDims, maxPointsInLeafNode, bytesPerDim, leafBlockFPs, splitPackedValues, minValue.bytes, maxValue.bytes, pointCount, docCount);
   }
 
   private void readLine(IndexInput in) throws IOException {
@@ -191,7 +195,7 @@ class SimpleTextPointsReader extends PointsReader {
     if (fieldInfo == null) {
       throw new IllegalArgumentException("field=\"" + fieldName + "\" is unrecognized");
     }
-    if (fieldInfo.getPointDimensionCount() == 0) {
+    if (fieldInfo.getPointDataDimensionCount() == 0) {
       throw new IllegalArgumentException("field=\"" + fieldName + "\" did not index points");
     }
     return readers.get(fieldName);

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/codecs/src/java/org/apache/lucene/codecs/simpletext/SimpleTextPointsWriter.java
----------------------------------------------------------------------
diff --git a/lucene/codecs/src/java/org/apache/lucene/codecs/simpletext/SimpleTextPointsWriter.java b/lucene/codecs/src/java/org/apache/lucene/codecs/simpletext/SimpleTextPointsWriter.java
index c3217f3..2da74d6 100644
--- a/lucene/codecs/src/java/org/apache/lucene/codecs/simpletext/SimpleTextPointsWriter.java
+++ b/lucene/codecs/src/java/org/apache/lucene/codecs/simpletext/SimpleTextPointsWriter.java
@@ -35,7 +35,8 @@ import org.apache.lucene.util.BytesRefBuilder;
 
 class SimpleTextPointsWriter extends PointsWriter {
 
-  public final static BytesRef NUM_DIMS      = new BytesRef("num dims ");
+  public final static BytesRef NUM_DATA_DIMS  = new BytesRef("num data dims ");
+  public final static BytesRef NUM_INDEX_DIMS = new BytesRef("num index dims ");
   public final static BytesRef BYTES_PER_DIM = new BytesRef("bytes per dim ");
   public final static BytesRef MAX_LEAF_POINTS = new BytesRef("max leaf points ");
   public final static BytesRef INDEX_COUNT = new BytesRef("index count ");
@@ -76,7 +77,8 @@ class SimpleTextPointsWriter extends PointsWriter {
     try (SimpleTextBKDWriter writer = new SimpleTextBKDWriter(writeState.segmentInfo.maxDoc(),
                                                               writeState.directory,
                                                               writeState.segmentInfo.name,
-                                                              fieldInfo.getPointDimensionCount(),
+                                                              fieldInfo.getPointDataDimensionCount(),
+                                                              fieldInfo.getPointIndexDimensionCount(),
                                                               fieldInfo.getPointNumBytes(),
                                                               SimpleTextBKDWriter.DEFAULT_MAX_POINTS_IN_LEAF_NODE,
                                                               SimpleTextBKDWriter.DEFAULT_MAX_MB_SORT_IN_HEAP,

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/codecs/PointsWriter.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/codecs/PointsWriter.java b/lucene/core/src/java/org/apache/lucene/codecs/PointsWriter.java
index d9a0b30..dd1eaeb 100644
--- a/lucene/core/src/java/org/apache/lucene/codecs/PointsWriter.java
+++ b/lucene/core/src/java/org/apache/lucene/codecs/PointsWriter.java
@@ -48,7 +48,7 @@ public abstract class PointsWriter implements Closeable {
       PointsReader pointsReader = mergeState.pointsReaders[i];
       if (pointsReader != null) {
         FieldInfo readerFieldInfo = mergeState.fieldInfos[i].fieldInfo(fieldInfo.name);
-        if (readerFieldInfo != null && readerFieldInfo.getPointDimensionCount() > 0) {
+        if (readerFieldInfo != null && readerFieldInfo.getPointDataDimensionCount() > 0) {
           PointValues values = pointsReader.getValues(fieldInfo.name);
           if (values != null) {
             maxPointCount += values.size();
@@ -92,7 +92,7 @@ public abstract class PointsWriter implements Closeable {
                     continue;
                   }
 
-                  if (readerFieldInfo.getPointDimensionCount() == 0) {
+                  if (readerFieldInfo.getPointDataDimensionCount() == 0) {
                     // This segment saw this field, but the field did not index points in it:
                     continue;
                   }
@@ -143,7 +143,12 @@ public abstract class PointsWriter implements Closeable {
               }
 
               @Override
-              public int getNumDimensions() {
+              public int getNumDataDimensions() {
+                throw new UnsupportedOperationException();
+              }
+
+              @Override
+              public int getNumIndexDimensions() {
                 throw new UnsupportedOperationException();
               }
 
@@ -182,7 +187,7 @@ public abstract class PointsWriter implements Closeable {
     }
     // merge field at a time
     for (FieldInfo fieldInfo : mergeState.mergeFieldInfos) {
-      if (fieldInfo.getPointDimensionCount() != 0) {
+      if (fieldInfo.getPointDataDimensionCount() != 0) {
         mergeOneField(mergeState, fieldInfo);
       }
     }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/codecs/lucene50/Lucene50FieldInfosFormat.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/codecs/lucene50/Lucene50FieldInfosFormat.java b/lucene/core/src/java/org/apache/lucene/codecs/lucene50/Lucene50FieldInfosFormat.java
index 30dca70..0ad0cad 100644
--- a/lucene/core/src/java/org/apache/lucene/codecs/lucene50/Lucene50FieldInfosFormat.java
+++ b/lucene/core/src/java/org/apache/lucene/codecs/lucene50/Lucene50FieldInfosFormat.java
@@ -148,7 +148,7 @@ public final class Lucene50FieldInfosFormat extends FieldInfosFormat {
           lastAttributes = attributes;
           try {
             infos[i] = new FieldInfo(name, fieldNumber, storeTermVector, omitNorms, storePayloads, 
-                                     indexOptions, docValuesType, dvGen, attributes, 0, 0, false);
+                                     indexOptions, docValuesType, dvGen, attributes, 0, 0, 0, false);
             infos[i].checkConsistency();
           } catch (IllegalStateException e) {
             throw new CorruptIndexException("invalid fieldinfo for field: " + name + ", fieldNumber=" + fieldNumber, input, e);

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/codecs/lucene60/Lucene60FieldInfosFormat.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/codecs/lucene60/Lucene60FieldInfosFormat.java b/lucene/core/src/java/org/apache/lucene/codecs/lucene60/Lucene60FieldInfosFormat.java
index 522a73f..e2ca9ee 100644
--- a/lucene/core/src/java/org/apache/lucene/codecs/lucene60/Lucene60FieldInfosFormat.java
+++ b/lucene/core/src/java/org/apache/lucene/codecs/lucene60/Lucene60FieldInfosFormat.java
@@ -114,7 +114,7 @@ public final class Lucene60FieldInfosFormat extends FieldInfosFormat {
       Throwable priorE = null;
       FieldInfo infos[] = null;
       try {
-        CodecUtil.checkIndexHeader(input,
+        int version = CodecUtil.checkIndexHeader(input,
                                    Lucene60FieldInfosFormat.CODEC_NAME, 
                                    Lucene60FieldInfosFormat.FORMAT_START, 
                                    Lucene60FieldInfosFormat.FORMAT_CURRENT,
@@ -149,9 +149,13 @@ public final class Lucene60FieldInfosFormat extends FieldInfosFormat {
             attributes = lastAttributes;
           }
           lastAttributes = attributes;
-          int pointDimensionCount = input.readVInt();
+          int pointDataDimensionCount = input.readVInt();
           int pointNumBytes;
-          if (pointDimensionCount != 0) {
+          int pointIndexDimensionCount = pointDataDimensionCount;
+          if (pointDataDimensionCount != 0) {
+            if (version >= Lucene60FieldInfosFormat.FORMAT_SELECTIVE_INDEXING) {
+              pointIndexDimensionCount = input.readVInt();
+            }
             pointNumBytes = input.readVInt();
           } else {
             pointNumBytes = 0;
@@ -160,7 +164,7 @@ public final class Lucene60FieldInfosFormat extends FieldInfosFormat {
           try {
             infos[i] = new FieldInfo(name, fieldNumber, storeTermVector, omitNorms, storePayloads, 
                                      indexOptions, docValuesType, dvGen, attributes,
-                                     pointDimensionCount, pointNumBytes, isSoftDeletesField);
+                                     pointDataDimensionCount, pointIndexDimensionCount, pointNumBytes, isSoftDeletesField);
             infos[i].checkConsistency();
           } catch (IllegalStateException e) {
             throw new CorruptIndexException("invalid fieldinfo for field: " + name + ", fieldNumber=" + fieldNumber, input, e);
@@ -287,9 +291,9 @@ public final class Lucene60FieldInfosFormat extends FieldInfosFormat {
         output.writeByte(docValuesByte(fi.getDocValuesType()));
         output.writeLong(fi.getDocValuesGen());
         output.writeMapOfStrings(fi.attributes());
-        int pointDimensionCount = fi.getPointDimensionCount();
-        output.writeVInt(pointDimensionCount);
-        if (pointDimensionCount != 0) {
+        output.writeVInt(fi.getPointDataDimensionCount());
+        if (fi.getPointDataDimensionCount() != 0) {
+          output.writeVInt(fi.getPointIndexDimensionCount());
           output.writeVInt(fi.getPointNumBytes());
         }
       }
@@ -304,7 +308,8 @@ public final class Lucene60FieldInfosFormat extends FieldInfosFormat {
   static final String CODEC_NAME = "Lucene60FieldInfos";
   static final int FORMAT_START = 0;
   static final int FORMAT_SOFT_DELETES = 1;
-  static final int FORMAT_CURRENT = FORMAT_SOFT_DELETES;
+  static final int FORMAT_SELECTIVE_INDEXING = 2;
+  static final int FORMAT_CURRENT = FORMAT_SELECTIVE_INDEXING;
   
   // Field flags
   static final byte STORE_TERMVECTOR = 0x1;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/codecs/lucene60/Lucene60PointsReader.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/codecs/lucene60/Lucene60PointsReader.java b/lucene/core/src/java/org/apache/lucene/codecs/lucene60/Lucene60PointsReader.java
index 0eecdbb..b5ff680 100644
--- a/lucene/core/src/java/org/apache/lucene/codecs/lucene60/Lucene60PointsReader.java
+++ b/lucene/core/src/java/org/apache/lucene/codecs/lucene60/Lucene60PointsReader.java
@@ -124,7 +124,7 @@ public class Lucene60PointsReader extends PointsReader implements Closeable {
     if (fieldInfo == null) {
       throw new IllegalArgumentException("field=\"" + fieldName + "\" is unrecognized");
     }
-    if (fieldInfo.getPointDimensionCount() == 0) {
+    if (fieldInfo.getPointDataDimensionCount() == 0) {
       throw new IllegalArgumentException("field=\"" + fieldName + "\" did not index point values");
     }
 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/codecs/lucene60/Lucene60PointsWriter.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/codecs/lucene60/Lucene60PointsWriter.java b/lucene/core/src/java/org/apache/lucene/codecs/lucene60/Lucene60PointsWriter.java
index 4f51e26..fddf08c 100644
--- a/lucene/core/src/java/org/apache/lucene/codecs/lucene60/Lucene60PointsWriter.java
+++ b/lucene/core/src/java/org/apache/lucene/codecs/lucene60/Lucene60PointsWriter.java
@@ -94,7 +94,8 @@ public class Lucene60PointsWriter extends PointsWriter implements Closeable {
     try (BKDWriter writer = new BKDWriter(writeState.segmentInfo.maxDoc(),
                                           writeState.directory,
                                           writeState.segmentInfo.name,
-                                          fieldInfo.getPointDimensionCount(),
+                                          fieldInfo.getPointDataDimensionCount(),
+                                          fieldInfo.getPointIndexDimensionCount(),
                                           fieldInfo.getPointNumBytes(),
                                           maxPointsInLeafNode,
                                           maxMBSortInHeap,
@@ -152,8 +153,8 @@ public class Lucene60PointsWriter extends PointsWriter implements Closeable {
     }
 
     for (FieldInfo fieldInfo : mergeState.mergeFieldInfos) {
-      if (fieldInfo.getPointDimensionCount() != 0) {
-        if (fieldInfo.getPointDimensionCount() == 1) {
+      if (fieldInfo.getPointDataDimensionCount() != 0) {
+        if (fieldInfo.getPointDataDimensionCount() == 1) {
 
           boolean singleValuePerDoc = true;
 
@@ -164,7 +165,7 @@ public class Lucene60PointsWriter extends PointsWriter implements Closeable {
             if (reader != null) {
               FieldInfos readerFieldInfos = mergeState.fieldInfos[i];
               FieldInfo readerFieldInfo = readerFieldInfos.fieldInfo(fieldInfo.name);
-              if (readerFieldInfo != null && readerFieldInfo.getPointDimensionCount() > 0) {
+              if (readerFieldInfo != null && readerFieldInfo.getPointDataDimensionCount() > 0) {
                 PointValues values = reader.getValues(fieldInfo.name);
                 if (values != null) {
                   totMaxSize += values.size();
@@ -181,7 +182,8 @@ public class Lucene60PointsWriter extends PointsWriter implements Closeable {
           try (BKDWriter writer = new BKDWriter(writeState.segmentInfo.maxDoc(),
                                                 writeState.directory,
                                                 writeState.segmentInfo.name,
-                                                fieldInfo.getPointDimensionCount(),
+                                                fieldInfo.getPointDataDimensionCount(),
+                                                fieldInfo.getPointIndexDimensionCount(),
                                                 fieldInfo.getPointNumBytes(),
                                                 maxPointsInLeafNode,
                                                 maxMBSortInHeap,
@@ -204,7 +206,7 @@ public class Lucene60PointsWriter extends PointsWriter implements Closeable {
 
                 FieldInfos readerFieldInfos = mergeState.fieldInfos[i];
                 FieldInfo readerFieldInfo = readerFieldInfos.fieldInfo(fieldInfo.name);
-                if (readerFieldInfo != null && readerFieldInfo.getPointDimensionCount() > 0) {
+                if (readerFieldInfo != null && readerFieldInfo.getPointDataDimensionCount() > 0) {
                   BKDReader bkdReader = reader60.readers.get(readerFieldInfo.number);
                   if (bkdReader != null) {
                     bkdReaders.add(bkdReader);

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/codecs/perfield/PerFieldMergeState.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/codecs/perfield/PerFieldMergeState.java b/lucene/core/src/java/org/apache/lucene/codecs/perfield/PerFieldMergeState.java
index 991eedf..291a384 100644
--- a/lucene/core/src/java/org/apache/lucene/codecs/perfield/PerFieldMergeState.java
+++ b/lucene/core/src/java/org/apache/lucene/codecs/perfield/PerFieldMergeState.java
@@ -134,7 +134,7 @@ final class PerFieldMergeState {
           hasNorms |= fi.hasNorms();
           hasDocValues |= fi.getDocValuesType() != DocValuesType.NONE;
           hasPayloads |= fi.hasPayloads();
-          hasPointValues |= (fi.getPointDimensionCount() != 0);
+          hasPointValues |= (fi.getPointDataDimensionCount() != 0);
         }
       }
 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/document/BinaryPoint.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/document/BinaryPoint.java b/lucene/core/src/java/org/apache/lucene/document/BinaryPoint.java
index 693a00f..f4b625e 100644
--- a/lucene/core/src/java/org/apache/lucene/document/BinaryPoint.java
+++ b/lucene/core/src/java/org/apache/lucene/document/BinaryPoint.java
@@ -124,8 +124,8 @@ public final class BinaryPoint extends Field {
   /** Expert API */
   public BinaryPoint(String name, byte[] packedPoint, IndexableFieldType type) {
     super(name, packedPoint, type);
-    if (packedPoint.length != type.pointDimensionCount() * type.pointNumBytes()) {
-      throw new IllegalArgumentException("packedPoint is length=" + packedPoint.length + " but type.pointDimensionCount()=" + type.pointDimensionCount() + " and type.pointNumBytes()=" + type.pointNumBytes());
+    if (packedPoint.length != type.pointDataDimensionCount() * type.pointNumBytes()) {
+      throw new IllegalArgumentException("packedPoint is length=" + packedPoint.length + " but type.pointDimensionCount()=" + type.pointDataDimensionCount() + " and type.pointNumBytes()=" + type.pointNumBytes());
     }
   }
   

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/document/DoublePoint.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/document/DoublePoint.java b/lucene/core/src/java/org/apache/lucene/document/DoublePoint.java
index 6547402..e442bec 100644
--- a/lucene/core/src/java/org/apache/lucene/document/DoublePoint.java
+++ b/lucene/core/src/java/org/apache/lucene/document/DoublePoint.java
@@ -85,8 +85,8 @@ public final class DoublePoint extends Field {
 
   /** Change the values of this field */
   public void setDoubleValues(double... point) {
-    if (type.pointDimensionCount() != point.length) {
-      throw new IllegalArgumentException("this field (name=" + name + ") uses " + type.pointDimensionCount() + " dimensions; cannot change to (incoming) " + point.length + " dimensions");
+    if (type.pointDataDimensionCount() != point.length) {
+      throw new IllegalArgumentException("this field (name=" + name + ") uses " + type.pointDataDimensionCount() + " dimensions; cannot change to (incoming) " + point.length + " dimensions");
     }
     fieldsData = pack(point);
   }
@@ -98,8 +98,8 @@ public final class DoublePoint extends Field {
 
   @Override
   public Number numericValue() {
-    if (type.pointDimensionCount() != 1) {
-      throw new IllegalStateException("this field (name=" + name + ") uses " + type.pointDimensionCount() + " dimensions; cannot convert to a single numeric value");
+    if (type.pointDataDimensionCount() != 1) {
+      throw new IllegalStateException("this field (name=" + name + ") uses " + type.pointDataDimensionCount() + " dimensions; cannot convert to a single numeric value");
     }
     BytesRef bytes = (BytesRef) fieldsData;
     assert bytes.length == Double.BYTES;
@@ -142,7 +142,7 @@ public final class DoublePoint extends Field {
     result.append(':');
 
     BytesRef bytes = (BytesRef) fieldsData;
-    for (int dim = 0; dim < type.pointDimensionCount(); dim++) {
+    for (int dim = 0; dim < type.pointDataDimensionCount(); dim++) {
       if (dim > 0) {
         result.append(',');
       }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/document/DoubleRange.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/document/DoubleRange.java b/lucene/core/src/java/org/apache/lucene/document/DoubleRange.java
index cf308c3..726d0a1 100644
--- a/lucene/core/src/java/org/apache/lucene/document/DoubleRange.java
+++ b/lucene/core/src/java/org/apache/lucene/document/DoubleRange.java
@@ -77,8 +77,8 @@ public class DoubleRange extends Field {
    */
   public void setRangeValues(double[] min, double[] max) {
     checkArgs(min, max);
-    if (min.length*2 != type.pointDimensionCount() || max.length*2 != type.pointDimensionCount()) {
-      throw new IllegalArgumentException("field (name=" + name + ") uses " + type.pointDimensionCount()/2
+    if (min.length*2 != type.pointDataDimensionCount() || max.length*2 != type.pointDataDimensionCount()) {
+      throw new IllegalArgumentException("field (name=" + name + ") uses " + type.pointDataDimensionCount()/2
           + " dimensions; cannot change to (incoming) " + min.length + " dimensions");
     }
 
@@ -148,7 +148,7 @@ public class DoubleRange extends Field {
    * @return the decoded min value
    */
   public double getMin(int dimension) {
-    FutureObjects.checkIndex(dimension, type.pointDimensionCount()/2);
+    FutureObjects.checkIndex(dimension, type.pointDataDimensionCount()/2);
     return decodeMin(((BytesRef)fieldsData).bytes, dimension);
   }
 
@@ -158,7 +158,7 @@ public class DoubleRange extends Field {
    * @return the decoded max value
    */
   public double getMax(int dimension) {
-    FutureObjects.checkIndex(dimension, type.pointDimensionCount()/2);
+    FutureObjects.checkIndex(dimension, type.pointDataDimensionCount()/2);
     return decodeMax(((BytesRef)fieldsData).bytes, dimension);
   }
 
@@ -244,7 +244,7 @@ public class DoubleRange extends Field {
     sb.append(':');
     byte[] b = ((BytesRef)fieldsData).bytes;
     toString(b, 0);
-    for (int d = 0; d < type.pointDimensionCount() / 2; ++d) {
+    for (int d = 0; d < type.pointDataDimensionCount() / 2; ++d) {
       sb.append(' ');
       sb.append(toString(b, d));
     }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/document/FieldType.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/document/FieldType.java b/lucene/core/src/java/org/apache/lucene/document/FieldType.java
index 3c7d276..a21572e 100644
--- a/lucene/core/src/java/org/apache/lucene/document/FieldType.java
+++ b/lucene/core/src/java/org/apache/lucene/document/FieldType.java
@@ -38,7 +38,8 @@ public class FieldType implements IndexableFieldType  {
   private IndexOptions indexOptions = IndexOptions.NONE;
   private boolean frozen;
   private DocValuesType docValuesType = DocValuesType.NONE;
-  private int dimensionCount;
+  private int dataDimensionCount;
+  private int indexDimensionCount;
   private int dimensionNumBytes;
 
   /**
@@ -54,7 +55,8 @@ public class FieldType implements IndexableFieldType  {
     this.omitNorms = ref.omitNorms();
     this.indexOptions = ref.indexOptions();
     this.docValuesType = ref.docValuesType();
-    this.dimensionCount = ref.pointDimensionCount();
+    this.dataDimensionCount = ref.pointDataDimensionCount();
+    this.indexDimensionCount = ref.pointIndexDimensionCount();
     this.dimensionNumBytes = ref.pointNumBytes();
     // Do not copy frozen!
   }
@@ -279,11 +281,24 @@ public class FieldType implements IndexableFieldType  {
    * Enables points indexing.
    */
   public void setDimensions(int dimensionCount, int dimensionNumBytes) {
-    if (dimensionCount < 0) {
-      throw new IllegalArgumentException("dimensionCount must be >= 0; got " + dimensionCount);
+    this.setDimensions(dimensionCount, dimensionCount, dimensionNumBytes);
+  }
+
+  /**
+   * Enables points indexing with selectable dimension indexing.
+   */
+  public void setDimensions(int dataDimensionCount, int indexDimensionCount, int dimensionNumBytes) {
+    if (dataDimensionCount < 0) {
+      throw new IllegalArgumentException("dataDimensionCount must be >= 0; got " + dataDimensionCount);
+    }
+    if (dataDimensionCount > PointValues.MAX_DIMENSIONS) {
+      throw new IllegalArgumentException("dataDimensionCount must be <= " + PointValues.MAX_DIMENSIONS + "; got " + dataDimensionCount);
     }
-    if (dimensionCount > PointValues.MAX_DIMENSIONS) {
-      throw new IllegalArgumentException("dimensionCount must be <= " + PointValues.MAX_DIMENSIONS + "; got " + dimensionCount);
+    if (indexDimensionCount < 0) {
+      throw new IllegalArgumentException("indexDimensionCount must be >= 0; got " + indexDimensionCount);
+    }
+    if (indexDimensionCount > dataDimensionCount) {
+      throw new IllegalArgumentException("indexDimensionCount must be <= dataDimensionCount: " + dataDimensionCount + "; got " + indexDimensionCount);
     }
     if (dimensionNumBytes < 0) {
       throw new IllegalArgumentException("dimensionNumBytes must be >= 0; got " + dimensionNumBytes);
@@ -291,23 +306,34 @@ public class FieldType implements IndexableFieldType  {
     if (dimensionNumBytes > PointValues.MAX_NUM_BYTES) {
       throw new IllegalArgumentException("dimensionNumBytes must be <= " + PointValues.MAX_NUM_BYTES + "; got " + dimensionNumBytes);
     }
-    if (dimensionCount == 0) {
+    if (dataDimensionCount == 0) {
+      if (indexDimensionCount != 0) {
+        throw new IllegalArgumentException("when dataDimensionCount is 0, indexDimensionCount must be 0; got " + indexDimensionCount);
+      }
       if (dimensionNumBytes != 0) {
-        throw new IllegalArgumentException("when dimensionCount is 0, dimensionNumBytes must 0; got " + dimensionNumBytes);
+        throw new IllegalArgumentException("when dataDimensionCount is 0, dimensionNumBytes must be 0; got " + dimensionNumBytes);
       }
+    } else if (indexDimensionCount == 0) {
+      throw new IllegalArgumentException("when dataDimensionCount is > 0, indexDimensionCount must be > 0; got " + indexDimensionCount);
     } else if (dimensionNumBytes == 0) {
-      if (dimensionCount != 0) {
-        throw new IllegalArgumentException("when dimensionNumBytes is 0, dimensionCount must 0; got " + dimensionCount);
+      if (dataDimensionCount != 0) {
+        throw new IllegalArgumentException("when dimensionNumBytes is 0, dataDimensionCount must be 0; got " + dataDimensionCount);
       }
     }
 
-    this.dimensionCount = dimensionCount;
+    this.dataDimensionCount = dataDimensionCount;
+    this.indexDimensionCount = indexDimensionCount;
     this.dimensionNumBytes = dimensionNumBytes;
   }
 
   @Override
-  public int pointDimensionCount() {
-    return dimensionCount;
+  public int pointDataDimensionCount() {
+    return dataDimensionCount;
+  }
+
+  @Override
+  public int pointIndexDimensionCount() {
+    return indexDimensionCount;
   }
 
   @Override
@@ -349,12 +375,14 @@ public class FieldType implements IndexableFieldType  {
         result.append(indexOptions);
       }
     }
-    if (dimensionCount != 0) {
+    if (dataDimensionCount != 0) {
       if (result.length() > 0) {
         result.append(",");
       }
-      result.append("pointDimensionCount=");
-      result.append(dimensionCount);
+      result.append("pointDataDimensionCount=");
+      result.append(dataDimensionCount);
+      result.append(",pointIndexDimensionCount=");
+      result.append(indexDimensionCount);
       result.append(",pointNumBytes=");
       result.append(dimensionNumBytes);
     }
@@ -399,7 +427,8 @@ public class FieldType implements IndexableFieldType  {
   public int hashCode() {
     final int prime = 31;
     int result = 1;
-    result = prime * result + dimensionCount;
+    result = prime * result + dataDimensionCount;
+    result = prime * result + indexDimensionCount;
     result = prime * result + dimensionNumBytes;
     result = prime * result + ((docValuesType == null) ? 0 : docValuesType.hashCode());
     result = prime * result + indexOptions.hashCode();
@@ -419,7 +448,8 @@ public class FieldType implements IndexableFieldType  {
     if (obj == null) return false;
     if (getClass() != obj.getClass()) return false;
     FieldType other = (FieldType) obj;
-    if (dimensionCount != other.dimensionCount) return false;
+    if (dataDimensionCount != other.dataDimensionCount) return false;
+    if (indexDimensionCount != other.indexDimensionCount) return false;
     if (dimensionNumBytes != other.dimensionNumBytes) return false;
     if (docValuesType != other.docValuesType) return false;
     if (indexOptions != other.indexOptions) return false;

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/document/FloatPoint.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/document/FloatPoint.java b/lucene/core/src/java/org/apache/lucene/document/FloatPoint.java
index 0ec67fd..b6d508f 100644
--- a/lucene/core/src/java/org/apache/lucene/document/FloatPoint.java
+++ b/lucene/core/src/java/org/apache/lucene/document/FloatPoint.java
@@ -85,8 +85,8 @@ public final class FloatPoint extends Field {
 
   /** Change the values of this field */
   public void setFloatValues(float... point) {
-    if (type.pointDimensionCount() != point.length) {
-      throw new IllegalArgumentException("this field (name=" + name + ") uses " + type.pointDimensionCount() + " dimensions; cannot change to (incoming) " + point.length + " dimensions");
+    if (type.pointDataDimensionCount() != point.length) {
+      throw new IllegalArgumentException("this field (name=" + name + ") uses " + type.pointDataDimensionCount() + " dimensions; cannot change to (incoming) " + point.length + " dimensions");
     }
     fieldsData = pack(point);
   }
@@ -98,8 +98,8 @@ public final class FloatPoint extends Field {
 
   @Override
   public Number numericValue() {
-    if (type.pointDimensionCount() != 1) {
-      throw new IllegalStateException("this field (name=" + name + ") uses " + type.pointDimensionCount() + " dimensions; cannot convert to a single numeric value");
+    if (type.pointDataDimensionCount() != 1) {
+      throw new IllegalStateException("this field (name=" + name + ") uses " + type.pointDataDimensionCount() + " dimensions; cannot convert to a single numeric value");
     }
     BytesRef bytes = (BytesRef) fieldsData;
     assert bytes.length == Float.BYTES;
@@ -142,7 +142,7 @@ public final class FloatPoint extends Field {
     result.append(':');
 
     BytesRef bytes = (BytesRef) fieldsData;
-    for (int dim = 0; dim < type.pointDimensionCount(); dim++) {
+    for (int dim = 0; dim < type.pointDataDimensionCount(); dim++) {
       if (dim > 0) {
         result.append(',');
       }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/document/FloatRange.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/document/FloatRange.java b/lucene/core/src/java/org/apache/lucene/document/FloatRange.java
index 9b555d6..191631b 100644
--- a/lucene/core/src/java/org/apache/lucene/document/FloatRange.java
+++ b/lucene/core/src/java/org/apache/lucene/document/FloatRange.java
@@ -77,8 +77,8 @@ public class FloatRange extends Field {
    */
   public void setRangeValues(float[] min, float[] max) {
     checkArgs(min, max);
-    if (min.length*2 != type.pointDimensionCount() || max.length*2 != type.pointDimensionCount()) {
-      throw new IllegalArgumentException("field (name=" + name + ") uses " + type.pointDimensionCount()/2
+    if (min.length*2 != type.pointDataDimensionCount() || max.length*2 != type.pointDataDimensionCount()) {
+      throw new IllegalArgumentException("field (name=" + name + ") uses " + type.pointDataDimensionCount()/2
           + " dimensions; cannot change to (incoming) " + min.length + " dimensions");
     }
 
@@ -148,7 +148,7 @@ public class FloatRange extends Field {
    * @return the decoded min value
    */
   public float getMin(int dimension) {
-    FutureObjects.checkIndex(dimension, type.pointDimensionCount()/2);
+    FutureObjects.checkIndex(dimension, type.pointDataDimensionCount()/2);
     return decodeMin(((BytesRef)fieldsData).bytes, dimension);
   }
 
@@ -158,7 +158,7 @@ public class FloatRange extends Field {
    * @return the decoded max value
    */
   public float getMax(int dimension) {
-    FutureObjects.checkIndex(dimension, type.pointDimensionCount()/2);
+    FutureObjects.checkIndex(dimension, type.pointDataDimensionCount()/2);
     return decodeMax(((BytesRef)fieldsData).bytes, dimension);
   }
 
@@ -244,7 +244,7 @@ public class FloatRange extends Field {
     sb.append(':');
     byte[] b = ((BytesRef)fieldsData).bytes;
     toString(b, 0);
-    for (int d = 0; d < type.pointDimensionCount() / 2; ++d) {
+    for (int d = 0; d < type.pointDataDimensionCount() / 2; ++d) {
       sb.append(' ');
       sb.append(toString(b, d));
     }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/document/IntPoint.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/document/IntPoint.java b/lucene/core/src/java/org/apache/lucene/document/IntPoint.java
index 8b3484b..da4f391 100644
--- a/lucene/core/src/java/org/apache/lucene/document/IntPoint.java
+++ b/lucene/core/src/java/org/apache/lucene/document/IntPoint.java
@@ -59,8 +59,8 @@ public final class IntPoint extends Field {
 
   /** Change the values of this field */
   public void setIntValues(int... point) {
-    if (type.pointDimensionCount() != point.length) {
-      throw new IllegalArgumentException("this field (name=" + name + ") uses " + type.pointDimensionCount() + " dimensions; cannot change to (incoming) " + point.length + " dimensions");
+    if (type.pointDataDimensionCount() != point.length) {
+      throw new IllegalArgumentException("this field (name=" + name + ") uses " + type.pointDataDimensionCount() + " dimensions; cannot change to (incoming) " + point.length + " dimensions");
     }
     fieldsData = pack(point);
   }
@@ -72,8 +72,8 @@ public final class IntPoint extends Field {
 
   @Override
   public Number numericValue() {
-    if (type.pointDimensionCount() != 1) {
-      throw new IllegalStateException("this field (name=" + name + ") uses " + type.pointDimensionCount() + " dimensions; cannot convert to a single numeric value");
+    if (type.pointDataDimensionCount() != 1) {
+      throw new IllegalStateException("this field (name=" + name + ") uses " + type.pointDataDimensionCount() + " dimensions; cannot convert to a single numeric value");
     }
     BytesRef bytes = (BytesRef) fieldsData;
     assert bytes.length == Integer.BYTES;
@@ -116,7 +116,7 @@ public final class IntPoint extends Field {
     result.append(':');
 
     BytesRef bytes = (BytesRef) fieldsData;
-    for (int dim = 0; dim < type.pointDimensionCount(); dim++) {
+    for (int dim = 0; dim < type.pointDataDimensionCount(); dim++) {
       if (dim > 0) {
         result.append(',');
       }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/document/IntRange.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/document/IntRange.java b/lucene/core/src/java/org/apache/lucene/document/IntRange.java
index e67b94f..b24e80a 100644
--- a/lucene/core/src/java/org/apache/lucene/document/IntRange.java
+++ b/lucene/core/src/java/org/apache/lucene/document/IntRange.java
@@ -77,8 +77,8 @@ public class IntRange extends Field {
    */
   public void setRangeValues(int[] min, int[] max) {
     checkArgs(min, max);
-    if (min.length*2 != type.pointDimensionCount() || max.length*2 != type.pointDimensionCount()) {
-      throw new IllegalArgumentException("field (name=" + name + ") uses " + type.pointDimensionCount()/2
+    if (min.length*2 != type.pointDataDimensionCount() || max.length*2 != type.pointDataDimensionCount()) {
+      throw new IllegalArgumentException("field (name=" + name + ") uses " + type.pointDataDimensionCount()/2
           + " dimensions; cannot change to (incoming) " + min.length + " dimensions");
     }
 
@@ -148,7 +148,7 @@ public class IntRange extends Field {
    * @return the decoded min value
    */
   public int getMin(int dimension) {
-    FutureObjects.checkIndex(dimension, type.pointDimensionCount()/2);
+    FutureObjects.checkIndex(dimension, type.pointDataDimensionCount()/2);
     return decodeMin(((BytesRef)fieldsData).bytes, dimension);
   }
 
@@ -158,7 +158,7 @@ public class IntRange extends Field {
    * @return the decoded max value
    */
   public int getMax(int dimension) {
-    FutureObjects.checkIndex(dimension, type.pointDimensionCount()/2);
+    FutureObjects.checkIndex(dimension, type.pointDataDimensionCount()/2);
     return decodeMax(((BytesRef)fieldsData).bytes, dimension);
   }
 
@@ -244,7 +244,7 @@ public class IntRange extends Field {
     sb.append(':');
     byte[] b = ((BytesRef)fieldsData).bytes;
     toString(b, 0);
-    for (int d = 0; d < type.pointDimensionCount() / 2; ++d) {
+    for (int d = 0; d < type.pointDataDimensionCount() / 2; ++d) {
       sb.append(' ');
       sb.append(toString(b, d));
     }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/document/LatLonPoint.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/document/LatLonPoint.java b/lucene/core/src/java/org/apache/lucene/document/LatLonPoint.java
index e3edead..c3ecc8a 100644
--- a/lucene/core/src/java/org/apache/lucene/document/LatLonPoint.java
+++ b/lucene/core/src/java/org/apache/lucene/document/LatLonPoint.java
@@ -147,9 +147,9 @@ public class LatLonPoint extends Field {
   /** helper: checks a fieldinfo and throws exception if its definitely not a LatLonPoint */
   static void checkCompatible(FieldInfo fieldInfo) {
     // point/dv properties could be "unset", if you e.g. used only StoredField with this same name in the segment.
-    if (fieldInfo.getPointDimensionCount() != 0 && fieldInfo.getPointDimensionCount() != TYPE.pointDimensionCount()) {
-      throw new IllegalArgumentException("field=\"" + fieldInfo.name + "\" was indexed with numDims=" + fieldInfo.getPointDimensionCount() + 
-                                         " but this point type has numDims=" + TYPE.pointDimensionCount() + 
+    if (fieldInfo.getPointDataDimensionCount() != 0 && fieldInfo.getPointDataDimensionCount() != TYPE.pointDataDimensionCount()) {
+      throw new IllegalArgumentException("field=\"" + fieldInfo.name + "\" was indexed with numDims=" + fieldInfo.getPointDataDimensionCount() +
+          " but this point type has numDims=" + TYPE.pointDataDimensionCount() +
                                          ", is the field really a LatLonPoint?");
     }
     if (fieldInfo.getPointNumBytes() != 0 && fieldInfo.getPointNumBytes() != TYPE.pointNumBytes()) {

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/document/LongPoint.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/document/LongPoint.java b/lucene/core/src/java/org/apache/lucene/document/LongPoint.java
index 5311114..835a37a 100644
--- a/lucene/core/src/java/org/apache/lucene/document/LongPoint.java
+++ b/lucene/core/src/java/org/apache/lucene/document/LongPoint.java
@@ -62,8 +62,8 @@ public final class LongPoint extends Field {
 
   /** Change the values of this field */
   public void setLongValues(long... point) {
-    if (type.pointDimensionCount() != point.length) {
-      throw new IllegalArgumentException("this field (name=" + name + ") uses " + type.pointDimensionCount() + " dimensions; cannot change to (incoming) " + point.length + " dimensions");
+    if (type.pointDataDimensionCount() != point.length) {
+      throw new IllegalArgumentException("this field (name=" + name + ") uses " + type.pointDataDimensionCount() + " dimensions; cannot change to (incoming) " + point.length + " dimensions");
     }
     fieldsData = pack(point);
   }
@@ -75,8 +75,8 @@ public final class LongPoint extends Field {
 
   @Override
   public Number numericValue() {
-    if (type.pointDimensionCount() != 1) {
-      throw new IllegalStateException("this field (name=" + name + ") uses " + type.pointDimensionCount() + " dimensions; cannot convert to a single numeric value");
+    if (type.pointDataDimensionCount() != 1) {
+      throw new IllegalStateException("this field (name=" + name + ") uses " + type.pointDataDimensionCount() + " dimensions; cannot convert to a single numeric value");
     }
     BytesRef bytes = (BytesRef) fieldsData;
     assert bytes.length == Long.BYTES;
@@ -119,7 +119,7 @@ public final class LongPoint extends Field {
     result.append(':');
 
     BytesRef bytes = (BytesRef) fieldsData;
-    for (int dim = 0; dim < type.pointDimensionCount(); dim++) {
+    for (int dim = 0; dim < type.pointDataDimensionCount(); dim++) {
       if (dim > 0) {
         result.append(',');
       }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/1118299c/lucene/core/src/java/org/apache/lucene/document/LongRange.java
----------------------------------------------------------------------
diff --git a/lucene/core/src/java/org/apache/lucene/document/LongRange.java b/lucene/core/src/java/org/apache/lucene/document/LongRange.java
index 1a1b19a..9056d2d 100644
--- a/lucene/core/src/java/org/apache/lucene/document/LongRange.java
+++ b/lucene/core/src/java/org/apache/lucene/document/LongRange.java
@@ -77,8 +77,8 @@ public class LongRange extends Field {
    */
   public void setRangeValues(long[] min, long[] max) {
     checkArgs(min, max);
-    if (min.length*2 != type.pointDimensionCount() || max.length*2 != type.pointDimensionCount()) {
-      throw new IllegalArgumentException("field (name=" + name + ") uses " + type.pointDimensionCount()/2
+    if (min.length*2 != type.pointDataDimensionCount() || max.length*2 != type.pointDataDimensionCount()) {
+      throw new IllegalArgumentException("field (name=" + name + ") uses " + type.pointDataDimensionCount()/2
           + " dimensions; cannot change to (incoming) " + min.length + " dimensions");
     }
 
@@ -146,7 +146,7 @@ public class LongRange extends Field {
    * @return the decoded min value
    */
   public long getMin(int dimension) {
-    FutureObjects.checkIndex(dimension, type.pointDimensionCount()/2);
+    FutureObjects.checkIndex(dimension, type.pointDataDimensionCount()/2);
     return decodeMin(((BytesRef)fieldsData).bytes, dimension);
   }
 
@@ -156,7 +156,7 @@ public class LongRange extends Field {
    * @return the decoded max value
    */
   public long getMax(int dimension) {
-    FutureObjects.checkIndex(dimension, type.pointDimensionCount()/2);
+    FutureObjects.checkIndex(dimension, type.pointDataDimensionCount()/2);
     return decodeMax(((BytesRef)fieldsData).bytes, dimension);
   }
 
@@ -242,7 +242,7 @@ public class LongRange extends Field {
     sb.append(':');
     byte[] b = ((BytesRef)fieldsData).bytes;
     toString(b, 0);
-    for (int d = 0; d < type.pointDimensionCount() / 2; ++d) {
+    for (int d = 0; d < type.pointDataDimensionCount() / 2; ++d) {
       sb.append(' ');
       sb.append(toString(b, d));
     }