xy2953396112 commented on a change in pull request #1526: [CALCITE-3439]
Support Intersect and Minus in RelMdPredicates
URL: https://github.com/apache/calcite/pull/1526#discussion_r339281776
##########
File path:
core/src/main/java/org/apache/calcite/rel/metadata/RelMdPredicates.java
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@@ -410,6 +415,52 @@ public RelOptPredicateList getPredicates(Union union,
RelMetadataQuery mq) {
return RelOptPredicateList.of(rexBuilder, predicates);
}
+ /**
+ * Infers predicates for a Intersect.
+ */
+ public RelOptPredicateList getPredicates(Intersect intersect,
RelMetadataQuery mq) {
+ final RexBuilder rexBuilder = intersect.getCluster().getRexBuilder();
+
+ final RexExecutorImpl rexImpl =
+ (RexExecutorImpl) (intersect.getCluster().getPlanner().getExecutor());
+ final RexImplicationChecker rexImplicationChecker =
+ new RexImplicationChecker(
+ intersect.getCluster().getRexBuilder(), rexImpl,
intersect.getRowType());
Review comment:
use rexBuilder?
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