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Posted to issues@calcite.apache.org by "Will Yu (Jira)" <ji...@apache.org> on 2020/11/20 00:54:00 UTC

[jira] [Created] (CALCITE-4410) Expose the type of internal sql node in Planner

Will Yu created CALCITE-4410:
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             Summary: Expose the type of internal sql node in Planner
                 Key: CALCITE-4410
                 URL: https://issues.apache.org/jira/browse/CALCITE-4410
             Project: Calcite
          Issue Type: Improvement
          Components: core
    Affects Versions: 1.26.0
            Reporter: Will Yu
            Assignee: Will Yu


Currently in Planner interface, there is only possible to fetch the *RelDataType* of the whole SqlNode through *validateAndGetType*, but really hard to fetch the type of one component in the SqlNode, e.g. one of the statement in the select list.

Currently, we worked it around by duplicate some code in Calcite, which is not a good practice. It would be helpful to directly expose the *SqlValidator::getValidatedNodeType* through Planner.



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