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https://issues.apache.org/jira/browse/BEAM-2018?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15997078#comment-15997078
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ASF GitHub Bot commented on BEAM-2018:
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Github user XuMingmin closed the pull request at:
https://github.com/apache/beam/pull/2656
> refine expression of Calcite method/function
> --------------------------------------------
>
> Key: BEAM-2018
> URL: https://issues.apache.org/jira/browse/BEAM-2018
> Project: Beam
> Issue Type: Improvement
> Components: dsl-sql
> Reporter: Xu Mingmin
> Assignee: Xu Mingmin
>
> https://calcite.apache.org/docs/reference.html list the method/functions that
> are supported in Calcite SQL statements.
> In this task, it defines an interface on how to mapping SQL expressions(with
> method/functions, and those without like direct-field reference) into a Java
> expression that can be evaluated against row records.
> --It's supposed to replace the reference implementation
> {{BeamSQLSpELExecutor}} for better capability.
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