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https://issues.apache.org/jira/browse/CALCITE-3810?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17041308#comment-17041308
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Julian Hyde commented on CALCITE-3810:
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Could use a bit of a clean up:
* Document that class.
* Move the big blob of code into a separate method.
* In the JIRA subject and commit message, mention that this is for the JDBC
adapter generating SQL, and that we would now generate EXISTS and NOT EXISTS.
(Same information, just less technical.)
Could potentially go into 1.22 if the tests all pass.
> Implement Rel-to-Sql translation for ANTI and SEMI join
> -------------------------------------------------------
>
> Key: CALCITE-3810
> URL: https://issues.apache.org/jira/browse/CALCITE-3810
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Affects Versions: 1.21.0
> Reporter: Christian Beikov
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Currently, when constructing an ANTI or SEMI join in the relational algebra,
> it's not possible to render to an Sql AST.
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