[jira] [Assigned] (FLINK-13075) Project pushdown rule shouldn't require the TableSource return a modified schema in blink planner

["Jark Wu (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-13075?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jark Wu reassigned FLINK-13075:
-------------------------------

    Assignee: godfrey he

> Project pushdown rule shouldn't require the TableSource return a modified schema in blink planner
> -------------------------------------------------------------------------------------------------
>
>                 Key: FLINK-13075
>                 URL: https://issues.apache.org/jira/browse/FLINK-13075
>             Project: Flink
>          Issue Type: Bug
>          Components: Table SQL / Planner
>            Reporter: Jark Wu
>            Assignee: godfrey he
>            Priority: Major
>
> As the javadoc of {{org.apache.flink.table.sources.ProjectableTableSource#projectFields}} said, the table schema of the TableSource copy must not be modified by this method. However, {{PushProjectIntoTableSourceScanRule}} in blink planner requires the returning a table source with the modified table schema. This conflict with the javadoc and result in the TableSource works for flink planner can't work for blink planner.



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