[jira] [Commented] (BEAM-9075) Join re-ordering doesn't work for ZetaSQL

["Brian Hulette (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/BEAM-9075?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17013274#comment-17013274 ] 

Brian Hulette commented on BEAM-9075:
-------------------------------------

In order to disable struct flattening in Calcite we need to make this line [1] optional. According to [~amaliujia] [2] we can comment out that line and run calcite tests to find 25 test failures pointing us to the rules that need to be fixed.

[1] https://github.com/apache/calcite/blob/master/core/src/main/java/org/apache/calcite/prepare/PlannerImpl.java#L257
[2] https://lists.apache.org/thread.html/89e37ebf18aac1f1783c2affb3d2162231e10889c7c4d11cded325c7%40%3Cdev.calcite.apache.org%3E

> Join re-ordering doesn't work for ZetaSQL
> -----------------------------------------
>
>                 Key: BEAM-9075
>                 URL: https://issues.apache.org/jira/browse/BEAM-9075
>             Project: Beam
>          Issue Type: Bug
>          Components: dsl-sql-zetasql
>    Affects Versions: 2.17.0
>            Reporter: Brian Hulette
>            Assignee: Brian Hulette
>            Priority: Major
>          Time Spent: 1h 50m
>  Remaining Estimate: 0h
>
> Join re-ordering can actually break queries in the ZetaSQL planner because Calcite's JoinCommuteRule doesn't work when schemas have nested fields. It only adjusts RexInputRef nodes and not RexFieldAccess.



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