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https://issues.apache.org/jira/browse/CALCITE-5349?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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TJ Banghart updated CALCITE-5349:
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Priority: Minor (was: Major)
> 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
> Priority: Minor
>
> 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 or overridable.
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