jcamachor commented on a change in pull request #812: Hive 22324
URL: https://github.com/apache/hive/pull/812#discussion_r337260931
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File path:
ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/rules/HiveJoinConstraintsRule.java
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@@ -117,7 +117,7 @@ public void onMatch(RelOptRuleCall call) {
// These boolean values represent corresponding left, right input which is
potential FK
boolean leftInputPotentialFK = topRefs.intersects(leftBits);
boolean rightInputPotentialFK = topRefs.intersects(rightBits);
- if (leftInputPotentialFK && rightInputPotentialFK && joinType ==
JoinRelType.INNER) {
+ if (leftInputPotentialFK && rightInputPotentialFK && (joinType ==
JoinRelType.INNER || joinType == JoinRelType.SEMI)) {
Review comment:
Same comment for all rules that match on `HiveJoin` (this does not seem to
be the case for this one).
I am not trying to be picky, it is just that if we are not sure that these
rules will work correctly, maybe we should bail out until we can add proper
semijoin testing for them.
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