[GitHub] gparai commented on a change in pull request #729: Drill 1328: Support table statistics for Parquet

[GitBox <gi...@apache.org>]

gparai commented on a change in pull request #729: Drill 1328: Support table statistics for Parquet
URL: https://github.com/apache/drill/pull/729#discussion_r256614163
 
 

 ##########
 File path: exec/java-exec/src/main/java/org/apache/drill/exec/expr/fn/impl/StatisticsAggrFunctions.java
 ##########
 @@ -5513,4 +5514,1517 @@ public void reset() {
       nonNullCount.value = 0;
     }
   }
+
+  @FunctionTemplate(name = "approx_count_dups", scope = FunctionTemplate.FunctionScope.POINT_AGGREGATE)
+  public static class BitCntDupsFunction implements DrillAggFunc {
+    @Param
+    BitHolder in;
+    @Workspace
+    ObjectHolder work;
+    @Workspace BigIntHolder dups;
+    @Output NullableBigIntHolder out;
+    @Inject OptionManager options;
+    @Workspace IntHolder ndvBloomFilterElts;
+    @Workspace IntHolder ndvBloomFilterFPProb;
+
+    @Override
+    public void setup() {
 
 Review comment:
   Done

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