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_r283692183
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File path:
core/src/main/java/org/apache/calcite/rel/metadata/RelMdPredicates.java
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@@ -578,6 +577,7 @@ public RelOptPredicateList inferPredicates(
final Set<RexNode> allExprs = new HashSet<>(this.allExprs);
final JoinRelType joinType = joinRel.getJoinType();
switch (joinType) {
+ case SEMI:
Review comment:
I'm not that sure, i add some `ANTI`s where `SEMI`s appears which i'm
confident that the modification is right, for the others, i would rather leave
it to the one who implements the `ANTI` join expression.
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