[jira] [Resolved] (CALCITE-3501) Improve EnumerableTableFunctionScan's implement() for table value function windowing

["Rui Wang (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CALCITE-3501?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rui Wang resolved CALCITE-3501.
-------------------------------
    Fix Version/s: 1.22.0
       Resolution: Fixed

> Improve EnumerableTableFunctionScan's implement() for table value function windowing
> ------------------------------------------------------------------------------------
>
>                 Key: CALCITE-3501
>                 URL: https://issues.apache.org/jira/browse/CALCITE-3501
>             Project: Calcite
>          Issue Type: Sub-task
>            Reporter: Rui Wang
>            Assignee: Rui Wang
>            Priority: Major
>             Fix For: 1.22.0
>
>
> In order to support table value function windowing, EnumerableTableFunctionScan's implement() should have an implementation which generates code that iterates input, calls the RexCall and generates output (can refer to the implementation of EnumerableCalc).
> For example, assume the input of table function is:
> col1 timestamp, col2 int, col3 char
> enumerable table function scan should emit
> col1 timestamp, col2 int, col3 char, wstart timestamp, wend timestamp



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