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https://issues.apache.org/jira/browse/FLINK-13777?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jingsong Lee updated FLINK-13777:
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Description:
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
> 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
> 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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