danny0405 commented on a change in pull request #2302:
URL: https://github.com/apache/calcite/pull/2302#discussion_r580871231
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File path: core/src/main/java/org/apache/calcite/sql2rel/RelDecorrelator.java
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@@ -429,7 +430,7 @@ protected RexNode removeCorrelationExpr(
ImmutableSortedMap.of());
}
- public @Nullable Frame decorrelateRel(Sort rel) {
+ public @Nullable Frame decorrelateRel(Sort rel, boolean isCorVarDefined) {
//
Review comment:
I have no ideas yet, keep an recursive state in the decorrelator is
really a complex work and needs careful design logic, we can merge this PR
first and refactor it later on.
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