AMashenkov commented on a change in pull request #398:
URL: https://github.com/apache/ignite-3/pull/398#discussion_r732526925
##########
File path:
modules/calcite/src/main/java/org/apache/ignite/internal/processors/query/calcite/trait/TraitUtils.java
##########
@@ -497,28 +497,32 @@ public PropagationContext propagate(TraitsPropagator
processor) {
if (combinations.isEmpty())
return this;
- ImmutableSet.Builder<Pair<RelTraitSet, List<RelTraitSet>>> b =
ImmutableSet.builder();
+ Set<Pair<RelTraitSet, List<RelTraitSet>>> b = new HashSet<>();
+
for (Pair<RelTraitSet, List<RelTraitSet>> variant : combinations)
b.addAll(processor.propagate(variant.left, variant.right));
- return new PropagationContext(b.build());
+
+ return new PropagationContext(Set.copyOf(b));
Review comment:
```suggestion
return new PropagationContext(Set.of(b));
```
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