[CALCITE-5468] SqlToRelConverter throws if ORDER BY contains IN

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.32.0, 1.33.0
• Fix Version/s: 1.34.0
• Component/s: core
• Labels: pull-request-available
• Assignee: Dmitry Sysolyatin
• Reporter: Dmitry Sysolyatin
• Created: 09/Jan/23 10:45
• Updated: 14/Mar/23 13:53
• Resolved: 14/Feb/23 07:51

Description

At the moment the following query throws exception:

@Test void testOrderByWithSubQuery() {
    String sql = "SELECT empno\n"
        + "FROM emp\n"
        + "ORDER BY\n"
        + "CASE WHEN empno IN (1,2) THEN 0 ELSE 1 END";
    sql(sql).ok();
  }

while converting CASE WHEN `EMP`.`EMPNO` IN (1, 2) THEN 0 ELSE 1 END
java.lang.RuntimeException: while converting CASE WHEN `EMP`.`EMPNO` IN (1, 2) THEN 0 ELSE 1 END
	at org.apache.calcite.sql2rel.ReflectiveConvertletTable.lambda$registerNodeTypeMethod$1(ReflectiveConvertletTable.java:98)

It happens because SqlToRelConverter does not register sub-query inside ORDER BY if query does not have aggregation

Issue Links

• links to: GitHub Pull Request #3022