deniskuzZ commented on code in PR #5409:
URL: https://github.com/apache/hive/pull/5409#discussion_r1813082595


##########
ql/src/java/org/apache/hadoop/hive/ql/optimizer/ConvertJoinMapJoin.java:
##########
@@ -714,6 +737,23 @@ private boolean convertJoinBucketMapJoin(JoinOperator 
joinOp, OptimizeTezProcCon
       }
     }
 
+    if (bucketFunction != null) {
+      final Operator<?> bigTableOp = 
mapJoinOp.getParentOperators().get(bigTablePosition);
+      for (TableScanOperator tso : 
OperatorUtils.findOperatorsUpstream(bigTableOp, TableScanOperator.class)) {
+        
tso.getConf().setGroupingPartitionColumns(bucketFunction.getSourceColumnNames());
+        tso.getConf().setGroupingNumBuckets(bucketFunction.getNumBuckets());
+      }
+
+      for (Operator<?> op : mapJoinOp.getParentOperators()) {
+        if (!(op instanceof ReduceSinkOperator)) {

Review Comment:
   you could use stream API, filter and then foreach



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