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Posted to dev@calcite.apache.org by "Rui Wang (Jira)" <ji...@apache.org> on 2019/12/09 23:41:00 UTC

[jira] [Created] (CALCITE-3582) Make StructFlatterner configurable in PlannerImpl

Rui Wang created CALCITE-3582:
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             Summary: Make StructFlatterner configurable in PlannerImpl
                 Key: CALCITE-3582
                 URL: https://issues.apache.org/jira/browse/CALCITE-3582
             Project: Calcite
          Issue Type: Task
            Reporter: Rui Wang
            Assignee: Rui Wang


There is a use case where users want to mix Beam programming model with Beam SQL together to process a dataset. The following is an example of the use case:

dataset.apply(something user defined)
            .apply(SELECT ...)
            .apply(something user defined)

As you can see, after the SQL statement is applied, the data structure should be preserved for further processing.


Make struct flattener configurable in PlannerImpl to allow disabling it when not needed can be a solution.  



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