[GitHub] [calcite] xy2953396112 commented on a change in pull request #1526: [CALCITE-3439] Support Intersect and Minus in RelMdPredicates

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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
 
 

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 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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