[jira] [Commented] (CALCITE-2986) Wrong results with =ANY subquery

["Vineet Garg (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CALCITE-2986?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16812799#comment-16812799 ] 

Vineet Garg commented on CALCITE-2986:
--------------------------------------

{{=ANY}} is equivalent to IN therefore such queries should be rewritten into IN. I am not what is the correct transformation for {{<>ANY}}.

> Wrong results with =ANY subquery
> --------------------------------
>
>                 Key: CALCITE-2986
>                 URL: https://issues.apache.org/jira/browse/CALCITE-2986
>             Project: Calcite
>          Issue Type: Bug
>          Components: core
>            Reporter: Vineet Garg
>            Assignee: Vineet Garg
>            Priority: Major
>              Labels: sub-query
>
> ANY/SOME subqueries are rewritten using MAX/MIN and cross-join. This is wrong transformation for {{=ANY}} and {{<>ANY}} (and therefore {{=ALL}} and {{<>ALL}}).
> Query
> {code:sql}
> select * from "scott".emp where empno = any (select empno from "scott".emp);
> {code}
> Expected output for above query is all rows from {{scott.emp}} but actual is only one row
> Test case: e.g. https://github.com/apache/calcite/compare/master...vineetgarg02:CALCITE-2986



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