AMashenkov commented on a change in pull request #498:
URL: https://github.com/apache/ignite-3/pull/498#discussion_r769701776
##########
File path:
modules/calcite/src/main/java/org/apache/ignite/internal/processors/query/calcite/trait/TraitUtils.java
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@@ -575,7 +576,7 @@ private static boolean fillRecursive(RelTraitSet outTraits,
List<List<RelTraitSe
* @param keys The keys to create collation from.
* @return New collation.
*/
- public static RelCollation createCollation(List<Integer> keys) {
+ public static RelCollation createCollation(IntSet keys) {
return RelCollations.of(
keys.stream().map(RelFieldCollation::new).collect(Collectors.toList())
Review comment:
key
```suggestion
keys.intStream().mapToObj(RelFieldCollation::new).collect(Collectors.toList())
```
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