xiedeyantu commented on code in PR #4704:
URL: https://github.com/apache/calcite/pull/4704#discussion_r2644415395
##########
core/src/main/java/org/apache/calcite/rel/rules/FilterProjectTransposeRule.java:
##########
@@ -175,11 +176,13 @@ protected FilterProjectTransposeRule(
final RelNode input = project.getInput();
final RelTraitSet traitSet = filter.getTraitSet()
.replaceIfs(RelCollationTraitDef.INSTANCE,
- () -> Collections.singletonList(
-
input.getTraitSet().getTrait(RelCollationTraitDef.INSTANCE)))
+ () ->
input.getTraitSet().getTraits(RelCollationTraitDef.INSTANCE))
Review Comment:
Yes, I'm not entirely sure why; I made some adjustments based on the error
message. I will revert the changes to RelDistribution later.
```
> Error while executing command ExplainCommand [sql: with t (a, b) as
(select * from (values (60, 'b')))
> select * from t where a in (select deptno from "scott".dept)]
> java.sql.SQLException: Error while executing SQL "explain plan for with t
(a, b) as (select * from (values (60, 'b')))
> select * from t where a in (select deptno from "scott".dept)": class
org.apache.calcite.plan.RelCompositeTrait cannot be cast to class
org.apache.calcite.rel.RelCollation (org.apache.calcite.plan.RelCompositeTrait
and org.apache.calcite.rel.RelCollation are in unnamed module of loader 'app')
```
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