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Posted to issues@flink.apache.org by "Jingsong Lee (Jira)" <ji...@apache.org> on 2020/02/24 04:09:00 UTC

[jira] [Assigned] (FLINK-13777) Introduce sql function wrappers and conversion to ExpressionConverter

     [ https://issues.apache.org/jira/browse/FLINK-13777?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jingsong Lee reassigned FLINK-13777:
------------------------------------

    Assignee:     (was: Jingsong Lee)

> Introduce sql function wrappers and conversion to ExpressionConverter
> ---------------------------------------------------------------------
>
>                 Key: FLINK-13777
>                 URL: https://issues.apache.org/jira/browse/FLINK-13777
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Table SQL / Planner
>            Reporter: Jingsong Lee
>            Priority: Major
>
> For remove the extended calcite sql functions, we introduce wrappers to wrap flink FunctionDefinition:
> 1.Add SqlReturnTypeInferenceWrapper to wrap TypeStrategy
> 2.Add SqlOperandTypeInferenceWrapper to wrap InputTypeStrategy
> 3.Add SqlOperandTypeCheckerWrapper to wrap InputTypeValidator
> 4.Add SqlFunctionWrapper to wrap SqlFunction
> 5.Add SqlFunctionWrapper converter and Standard sql converter



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