hsyuan commented on a change in pull request #1462:
[CALCITE-3353]ProjectJoinTransposeRule caused AssertionError when creating a
new Join
URL: https://github.com/apache/calcite/pull/1462#discussion_r326423136
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File path:
core/src/main/java/org/apache/calcite/rel/rules/ProjectJoinTransposeRule.java
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@@ -142,13 +144,9 @@ public void onMatch(RelOptRuleCall call) {
// create a new join with the projected children
Join newJoinRel =
- join.copy(
Review comment:
I remember we had a discussion before about this. Because for rules that can
match both logical and physical operators, `copy` method can keep it.
`RelBuilderFacory` will most likely create logical relational nodes. I don't
mind the default rule instance matching logical rel nodes only.
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