Maryann Xue created CALCITE-1019:
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Summary: RelMdUtil.checkInputForCollationAndLimit() was wrong with
alreadySorted check
Key: CALCITE-1019
URL: https://issues.apache.org/jira/browse/CALCITE-1019
Project: Calcite
Issue Type: Bug
Reporter: Maryann Xue
Assignee: Maryann Xue
Priority: Minor
Fix For: 1.6.0
The below line works incorrectly with EMPTY collation:
{code}
final boolean alreadySorted = RelCollations.equal(
ImmutableList.of(collation), inputCollation);
{code}
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