[jira] [Created] (CALCITE-4167) Group by COALESCE IN throws NullPointerException

["Danny Chen (Jira)" <ji...@apache.org>]

Danny Chen created CALCITE-4167:
-----------------------------------

             Summary: Group by COALESCE IN throws NullPointerException
                 Key: CALCITE-4167
                 URL: https://issues.apache.org/jira/browse/CALCITE-4167
             Project: Calcite
          Issue Type: Bug
          Components: core
    Affects Versions: 1.24.0
            Reporter: Danny Chen
            Assignee: Danny Chen
             Fix For: 1.25.0


Added this test case in SqlToRelConverterTest:

{code:java}
@Test void testGroupByCoalesceIn() {
    final String sql = "select case when coalesce(ename, 'a') in ('1', '2')\n" +
        "then 'CKA' else 'QT' END, count(distinct deptno) from emp\n" +
        "group by case when coalesce(ename, 'a') in ('1', '2') then 'CKA' else 'QT' END";
    sql(sql).ok();
  }
{code}




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