[jira] [Commented] (CALCITE-2011) ProjectSetOpTransposeRule gives StackOverflowError

["zhen wang (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CALCITE-2011?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16374086#comment-16374086 ] 

zhen wang commented on CALCITE-2011:
------------------------------------

@Test public void testSelectUnion() {
    final String sql = "select a, a + 1 from ("
        + "select a from (values (1)) as t1 (a) union all select a from (Values (2)) as t2 (a) )";
    CalciteAssert.hr()
        .query(sql)
        .runs();
  }

this actually works. guess it's a different scenario, [~RuidongLi] need more details

> ProjectSetOpTransposeRule gives StackOverflowError
> --------------------------------------------------
>
>                 Key: CALCITE-2011
>                 URL: https://issues.apache.org/jira/browse/CALCITE-2011
>             Project: Calcite
>          Issue Type: Bug
>            Reporter: Ruidong Li
>            Assignee: Julian Hyde
>            Priority: Major
>
> Here's the test case. If t1 and t2 are tables with one column "a", then
> {code}
> t1.unionAll(t2).select(a + 1, a).select(a)
> {code}
> will cause {{StatckOverflowError}} if {{ProjectSetOpTransposeRule}} is enabled.



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