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Posted to commits@spark.apache.org by jo...@apache.org on 2015/07/29 02:52:02 UTC
spark git commit: [SPARK-9421] Fix null-handling bugs in
UnsafeRow.getDouble, getFloat(), and get(ordinal, dataType)
Repository: spark
Updated Branches:
refs/heads/master 6662ee212 -> e78ec1a8f
[SPARK-9421] Fix null-handling bugs in UnsafeRow.getDouble, getFloat(), and get(ordinal, dataType)
UnsafeRow.getDouble and getFloat() return NaN when called on columns that are null, which is inconsistent with the behavior of other row classes (which is to return 0.0).
In addition, the generic get(ordinal, dataType) method should always return null for a null literal, but currently it handles nulls by calling the type-specific accessors.
This patch addresses both of these issues and adds a regression test.
Author: Josh Rosen <jo...@databricks.com>
Closes #7736 from JoshRosen/unsafe-row-null-fixes and squashes the following commits:
c8eb2ee [Josh Rosen] Fix test in UnsafeRowConverterSuite
6214682 [Josh Rosen] Fixes to null handling in UnsafeRow
Project: http://git-wip-us.apache.org/repos/asf/spark/repo
Commit: http://git-wip-us.apache.org/repos/asf/spark/commit/e78ec1a8
Tree: http://git-wip-us.apache.org/repos/asf/spark/tree/e78ec1a8
Diff: http://git-wip-us.apache.org/repos/asf/spark/diff/e78ec1a8
Branch: refs/heads/master
Commit: e78ec1a8fabfe409c92c4904208f53dbdcfcf139
Parents: 6662ee2
Author: Josh Rosen <jo...@databricks.com>
Authored: Tue Jul 28 17:51:58 2015 -0700
Committer: Josh Rosen <jo...@databricks.com>
Committed: Tue Jul 28 17:51:58 2015 -0700
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.../spark/sql/catalyst/expressions/UnsafeRow.java | 14 +++-----------
.../expressions/UnsafeRowConverterSuite.scala | 4 ++--
.../org/apache/spark/sql/UnsafeRowSuite.scala | 17 ++++++++++++++++-
3 files changed, 21 insertions(+), 14 deletions(-)
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http://git-wip-us.apache.org/repos/asf/spark/blob/e78ec1a8/sql/catalyst/src/main/java/org/apache/spark/sql/catalyst/expressions/UnsafeRow.java
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diff --git a/sql/catalyst/src/main/java/org/apache/spark/sql/catalyst/expressions/UnsafeRow.java b/sql/catalyst/src/main/java/org/apache/spark/sql/catalyst/expressions/UnsafeRow.java
index 955fb42..64a8edc 100644
--- a/sql/catalyst/src/main/java/org/apache/spark/sql/catalyst/expressions/UnsafeRow.java
+++ b/sql/catalyst/src/main/java/org/apache/spark/sql/catalyst/expressions/UnsafeRow.java
@@ -239,7 +239,7 @@ public final class UnsafeRow extends MutableRow {
@Override
public Object get(int ordinal, DataType dataType) {
- if (dataType instanceof NullType) {
+ if (isNullAt(ordinal) || dataType instanceof NullType) {
return null;
} else if (dataType instanceof BooleanType) {
return getBoolean(ordinal);
@@ -313,21 +313,13 @@ public final class UnsafeRow extends MutableRow {
@Override
public float getFloat(int ordinal) {
assertIndexIsValid(ordinal);
- if (isNullAt(ordinal)) {
- return Float.NaN;
- } else {
- return PlatformDependent.UNSAFE.getFloat(baseObject, getFieldOffset(ordinal));
- }
+ return PlatformDependent.UNSAFE.getFloat(baseObject, getFieldOffset(ordinal));
}
@Override
public double getDouble(int ordinal) {
assertIndexIsValid(ordinal);
- if (isNullAt(ordinal)) {
- return Float.NaN;
- } else {
- return PlatformDependent.UNSAFE.getDouble(baseObject, getFieldOffset(ordinal));
- }
+ return PlatformDependent.UNSAFE.getDouble(baseObject, getFieldOffset(ordinal));
}
@Override
http://git-wip-us.apache.org/repos/asf/spark/blob/e78ec1a8/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/UnsafeRowConverterSuite.scala
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diff --git a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/UnsafeRowConverterSuite.scala b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/UnsafeRowConverterSuite.scala
index 2834b54..b7bc17f 100644
--- a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/UnsafeRowConverterSuite.scala
+++ b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/UnsafeRowConverterSuite.scala
@@ -146,8 +146,8 @@ class UnsafeRowConverterSuite extends SparkFunSuite with Matchers {
assert(createdFromNull.getShort(3) === 0)
assert(createdFromNull.getInt(4) === 0)
assert(createdFromNull.getLong(5) === 0)
- assert(java.lang.Float.isNaN(createdFromNull.getFloat(6)))
- assert(java.lang.Double.isNaN(createdFromNull.getDouble(7)))
+ assert(createdFromNull.getFloat(6) === 0.0f)
+ assert(createdFromNull.getDouble(7) === 0.0d)
assert(createdFromNull.getUTF8String(8) === null)
assert(createdFromNull.getBinary(9) === null)
// assert(createdFromNull.get(10) === null)
http://git-wip-us.apache.org/repos/asf/spark/blob/e78ec1a8/sql/core/src/test/scala/org/apache/spark/sql/UnsafeRowSuite.scala
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diff --git a/sql/core/src/test/scala/org/apache/spark/sql/UnsafeRowSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/UnsafeRowSuite.scala
index ad3bb17..e72a1bc 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/UnsafeRowSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/UnsafeRowSuite.scala
@@ -22,7 +22,7 @@ import java.io.ByteArrayOutputStream
import org.apache.spark.SparkFunSuite
import org.apache.spark.sql.catalyst.InternalRow
import org.apache.spark.sql.catalyst.expressions.{UnsafeRow, UnsafeProjection}
-import org.apache.spark.sql.types.{DataType, IntegerType, StringType}
+import org.apache.spark.sql.types._
import org.apache.spark.unsafe.PlatformDependent
import org.apache.spark.unsafe.memory.MemoryAllocator
import org.apache.spark.unsafe.types.UTF8String
@@ -67,4 +67,19 @@ class UnsafeRowSuite extends SparkFunSuite {
assert(bytesFromArrayBackedRow === bytesFromOffheapRow)
}
+
+ test("calling getDouble() and getFloat() on null columns") {
+ val row = InternalRow.apply(null, null)
+ val unsafeRow = UnsafeProjection.create(Array[DataType](FloatType, DoubleType)).apply(row)
+ assert(unsafeRow.getFloat(0) === row.getFloat(0))
+ assert(unsafeRow.getDouble(1) === row.getDouble(1))
+ }
+
+ test("calling get(ordinal, datatype) on null columns") {
+ val row = InternalRow.apply(null)
+ val unsafeRow = UnsafeProjection.create(Array[DataType](NullType)).apply(row)
+ for (dataType <- DataTypeTestUtils.atomicTypes) {
+ assert(unsafeRow.get(0, dataType) === null)
+ }
+ }
}
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