okumin commented on code in PR #5409: URL: https://github.com/apache/hive/pull/5409#discussion_r1822962580
########## ql/src/java/org/apache/hadoop/hive/ql/optimizer/ConvertJoinMapJoin.java: ########## @@ -1521,12 +1570,22 @@ private static int estimateNumBuckets(JoinOperator joinOp, boolean useOpTraits) int estimatedBuckets = -1; for (Operator<? extends OperatorDesc>parentOp : joinOp.getParentOperators()) { - if (parentOp.getOpTraits().getNumBuckets() > 0) { - numBuckets = (numBuckets < parentOp.getOpTraits().getNumBuckets()) ? - parentOp.getOpTraits().getNumBuckets() : numBuckets; + final OpTraits parentOpTraits = parentOp.getOpTraits(); + if (parentOpTraits.getNumBuckets() > 0) { + numBuckets = (numBuckets < parentOpTraits.getNumBuckets()) ? + parentOpTraits.getNumBuckets() : numBuckets; + } + + if (!(parentOp instanceof ReduceSinkOperator)) { Review Comment: This tried to keep the original logic as much as possible, but I think your question should be valid. I tried to move it and am monitoring CI https://github.com/apache/hive/pull/5409/commits/c6aa9d2d0a81ff2e8834e1350a18405e593fe212 -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: gitbox-unsubscr...@hive.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: gitbox-unsubscr...@hive.apache.org For additional commands, e-mail: gitbox-h...@hive.apache.org