danny0405 commented on a change in pull request #1157: [CALCITE-2969] Improve
design of join-like relational expressions
URL: https://github.com/apache/calcite/pull/1157#discussion_r276497848
##########
File path:
core/src/main/java/org/apache/calcite/adapter/enumerable/EnumerableJoinRule.java
##########
@@ -71,26 +72,34 @@
EnumerableRules.LOGGER.debug(e.toString());
return null;
}
- }
- RelNode newRel;
- try {
- newRel = EnumerableJoin.create(
+ } else if (info.isEqui() && join.isNonCorrelateSemiJoin()) {
+ // This is a semi-join.
+ return EnumerableNestedLoopJoin.create(
Review comment:
This question is gone if we move semiJoin implementation to
EnumerableHashJoin.
----------------------------------------------------------------
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.
For queries about this service, please contact Infrastructure at:
[email protected]
With regards,
Apache Git Services
