Haisheng Yuan created CALCITE-3124:
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Summary: Infinite rule matching when AggregateRemoveRule is
enabled for SUM0
Key: CALCITE-3124
URL: https://issues.apache.org/jira/browse/CALCITE-3124
Project: Calcite
Issue Type: Bug
Reporter: Haisheng Yuan
Make the following changes (uncomment return clause) to /AggregateRemoveRule,
the test case {{JdbcTest.testHavingNot2}} won't complete due to infinite rule
matching.
{code:diff}
--- a/core/src/main/java/org/apache/calcite/rel/rules/AggregateRemoveRule.java
+++ b/core/src/main/java/org/apache/calcite/rel/rules/AggregateRemoveRule.java
@@ -102,7 +102,7 @@ public void onMatch(RelOptRuleCall call) {
if (aggregation.getKind() == SqlKind.SUM0) {
// Bail out for SUM0 to avoid potential infinite rule matching,
// because it may be generated by transforming SUM aggregate
// function to SUM0 and COUNT.
- return;
+// return;
}
final SqlSplittableAggFunction splitter =
Objects.requireNonNull(
{code}
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