Gian Merlino created CALCITE-5865:
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Summary: ClassCastException with FLOOR and CEIL on conformances
that are not builtin
Key: CALCITE-5865
URL: https://issues.apache.org/jira/browse/CALCITE-5865
Project: Calcite
Issue Type: Bug
Reporter: Gian Merlino
CALCITE-5747 introduced some BigQuery-specific logic for FLOOR and CEIL that is
keyed off the conformance being {{SqlConformanceEnum.BIG_QUERY}}. However, it
was implemented in such a way that implementations of {{SqlConformance}} that
are not {{SqlConformanceEnum}} would throw {{ClassCastException}}, due to this
line in {{Parser.jj}}:
{code}
SqlOperator op = SqlStdOperatorTable.floorCeil(floorFlag, (SqlConformanceEnum)
this.conformance);
{code}
Better would be to pass {{this.conformance}} without casting, and adjust
{{SqlStdOperatorTable.floorCeil}} to handle any kind of conformance.
This affects us in Apache Druid land, because we have a conformance that
extends {{SqlAbstractConformance}}.
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