asolimando commented on code in PR #4878:
URL: https://github.com/apache/calcite/pull/4878#discussion_r3075127521
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core/src/main/java/org/apache/calcite/rel/rules/SetOpToFilterRule.java:
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@@ -143,7 +153,14 @@ private static void match(RelOptRuleCall call) {
for (int i = 1; i < inputs.size(); i++) {
final RelNode input = inputs.get(i).stripped();
- final Pair<RelNode, @Nullable RexNode> pair =
extractSourceAndCond(input);
+ boolean isSorted = false;
+ final List<RelCollation> inputCollations = mq.collations(input);
Review Comment:
As suggested let's bring the discussion in Jira, I will try to summarize
there my idea, let's see if it makes sense for everyone, thanks for the code
draft @xiedeyantu!
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