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https://issues.apache.org/jira/browse/CALCITE-35?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16847202#comment-16847202
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Hongze Zhang commented on CALCITE-35:
-------------------------------------
Just my 2 cents - I would prefer coming up with a better solution, then put the
changes to core parser, not only for babel, because the syntax is defined by
SQL standard. In the sense porting current PR to babel is more like a
workaround.
Anyway, I like the idea adding some defensive test cases first, thanks for that.
> Support parenthesized sub-clause in JOIN
> ----------------------------------------
>
> Key: CALCITE-35
> URL: https://issues.apache.org/jira/browse/CALCITE-35
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.19.0
> Reporter: GitHub Import
> Priority: Major
> Labels: github-import, pull-request-available
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> SQL-92 allows joins to be grouped into trees using parentheses. For example,
> select * from a join (b join c on b.x = c.x) on a.y = c.y
> Optiq should support this. Currently this gives
> "org.eigenbase.util.EigenbaseException: Non-query expression encountered in
> illegal context".
> ---------------- Imported from GitHub ----------------
> Url: https://github.com/julianhyde/optiq/issues/35
> Created by: [julianhyde|https://github.com/julianhyde]
> Labels:
> Created at: Fri Apr 19 02:46:01 CEST 2013
> State: open
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