TJ Banghart created CALCITE-5349:
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Summary: RelJson should support non-standard operators
Key: CALCITE-5349
URL: https://issues.apache.org/jira/browse/CALCITE-5349
Project: Calcite
Issue Type: Improvement
Components: core
Reporter: TJ Banghart
Assignee: TJ Banghart
I am attempting to deserialize {{RexNodes}} that contain non-standard operators
but {{RexJson#toOp}} only considers operators found in
{{{}SqlStdOperatorTable{}}}:
[https://github.com/apache/calcite/blob/c945b7f49b99538748c871557f6ac80957be2b6e/core/src/main/java/org/apache/calcite/rel/externalize/RelJson.java#L780]
For example, attempting to deserialize a JSON RexCall that includes the
BigQuery only `DATE_FROM_UNIX_DATE` operator raises {{CalciteException: No
operator for 'DATE_FROM_UNIX_DATE' with kind: 'OTHER_FUNCTION', syntax:
'FUNCTION' during JSON deserialization}}
Unless I am missing something, I don't believe the operator lookup is
configurable nor overridable.
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