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https://issues.apache.org/jira/browse/BEAM-9075?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17015348#comment-17015348
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Brian Hulette commented on BEAM-9075:
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Yes so we have two options to resolve this:
1) Make sure JoinCommuteRule (and ideally all calcite rules) work with non
flattened schemas, or
2) Flatten schemas when using the ZetaSQL planner
I provided some details on how to do (1) in my first comment, I'll defer to
[~amaliujia] and [~apilloud] to assess how feasible (2) is.
> 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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