maheshk114 commented on a change in pull request #1147:
URL: https://github.com/apache/hive/pull/1147#discussion_r459216878
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File path: ql/src/java/org/apache/hadoop/hive/ql/ppd/SyntheticJoinPredicate.java
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@@ -339,6 +339,12 @@ String getFuncText(String funcText, final int srcPos) {
vector.add(right, left);
break;
case JoinDesc.LEFT_OUTER_JOIN:
+ case JoinDesc.ANTI_JOIN:
+ //TODO : In case of anti join, bloom filter can be created on left
side also ("IN (keylist right table)").
+ // But the filter should be "not-in" ("NOT IN (keylist right table)")
as we want to select the records from
+ // left side which are not present in the right side. But it may cause
wrong result as
+ // bloom filter may have false positive and thus simply adding not is
not correct,
+ // special handling is required for "NOT IN".
Review comment:
created a Jira ..https://issues.apache.org/jira/browse/HIVE-23903
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