slim bouguerra created HIVE-18254:
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Summary: Use proper AVG Calcite primitive instead of Other_FUNCTION
Key: HIVE-18254
URL: https://issues.apache.org/jira/browse/HIVE-18254
Project: Hive
Issue Type: Bug
Reporter: slim bouguerra
Currently Hive-Calcite operator tree treats AVG function as an unknown function
that has a Calcite Sql Kind of Other_FUNCTION. This is an issue that can get
into the way of rules like
{{org.apache.calcite.rel.rules.AggregateReduceFunctionsRule}}.
This patch adds the avg function to the list of known aggregate function.
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