vineetgarg02 commented on a change in pull request #809: HIVE-22274: upgrade
Calcite to 1.21
URL: https://github.com/apache/hive/pull/809#discussion_r333775973
##########
File path:
ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/HiveRelBuilder.java
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@@ -113,9 +113,8 @@ public RelBuilder filter(Iterable<? extends RexNode>
predicates) {
@Override
public RelBuilder empty() {
final RelNode input = build();
- final RelNode sort = HiveRelFactories.HIVE_SORT_FACTORY.createSort(
- input, RelCollations.of(), null, literal(0));
- return this.push(sort);
+ final RelNode filter =
HiveRelFactories.HIVE_FILTER_FACTORY.createFilter(input, literal(false));
Review comment:
Method's comment is outdated (referring to Limit 0)
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