zabetak commented on a change in pull request #1130: [CALCITE-2865]
FilterProjectTransposeRule generates wrong traitSet when copyFilter/Project is
true
URL: https://github.com/apache/calcite/pull/1130#discussion_r270352233
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File path:
core/src/main/java/org/apache/calcite/rel/rules/FilterProjectTransposeRule.java
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@@ -155,8 +158,12 @@ public void onMatch(RelOptRuleCall call) {
final RelBuilder relBuilder = call.builder();
RelNode newFilterRel;
if (copyFilter) {
- newFilterRel = filter.copy(filter.getTraitSet(), project.getInput(),
- simplifyFilterCondition(newCondition, call));
+ final RelNode input = project.getInput();
+ final RelTraitSet traitSet = filter.getTraitSet()
+ .replaceIfs(RelCollationTraitDef.INSTANCE,
Review comment:
The way the rule currently is, If it matches an EnumerableFilter and
EnumerableProject with `copy==false` it will create logical equivalents and not
enumerable operators (provided that the RelBuilderFactory is the logical one).
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