korlov42 commented on a change in pull request #8472:
URL: https://github.com/apache/ignite/pull/8472#discussion_r528723576
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File path:
modules/calcite/src/main/java/org/apache/ignite/internal/processors/query/calcite/rel/IgniteProject.java
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@@ -191,6 +196,27 @@ public IgniteProject(RelInput input) {
return ImmutableList.of(Pair.of(nodeTraits.replace(collation),
ImmutableList.of(in)));
}
+ /** */
+ @Override public List<Pair<RelTraitSet, List<RelTraitSet>>>
passThroughCorrelation(RelTraitSet nodeTraits,
+ List<RelTraitSet> inTraits) {
+ if (RexUtils.hasCorrelation(getProjects()))
+ return ImmutableList.of();
Review comment:
The empty list should be returned only in case when correlations derived
from `getProjects()` is not subset of `TraitUtils.correlation(nodeTraits))`
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