hsyuan commented on a change in pull request #1884:
URL: https://github.com/apache/calcite/pull/1884#discussion_r416320873
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File path: core/src/main/java/org/apache/calcite/rel/RelCollationTraitDef.java
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@@ -61,18 +65,21 @@ public RelCollation getDefault() {
public RelNode convert(
RelOptPlanner planner,
+ RelBuilder builder,
RelNode rel,
RelCollation toCollation,
+ Convention toConvention,
Review comment:
Base class doesn't need this either. We can get convention from
parameter `rel`. So the extra parameter is not needed.
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