[jira] [Created] (CALCITE-6030) DATE_PART is not handled by the RexToLixTranslator

[Mihai Budiu (Jira)]

Mihai Budiu created CALCITE-6030:
------------------------------------

             Summary: DATE_PART is not handled by the RexToLixTranslator
                 Key: CALCITE-6030
                 URL: https://issues.apache.org/jira/browse/CALCITE-6030
             Project: Calcite
          Issue Type: Bug
          Components: core
    Affects Versions: 1.35.0
            Reporter: Mihai Budiu


The following test, when added to SqlOperatorTest, causes a RuntimeException:
{code:java}
@Test void testDatePart() {
    final SqlOperatorFixture f = fixture().withLibrary(SqlLibrary.POSTGRESQL)
        .withParserConfig(p -> p.withParserFactory(SqlBabelParserImpl.FACTORY));
    f.checkScalar("DATE_PART(second, TIME '10:10:10')",
        "10", "BIGINT NOT NULL");
  }
{code}

Note that this needs https://github.com/apache/calcite/pull/3445 to execute 
correctly.

The stack trace is:

{code:java}
Suppressed: java.lang.RuntimeException: cannot translate call DATE_PART($t1, 
$t2)
                at 
org.apache.calcite.adapter.enumerable.RexToLixTranslator.visitCall(RexToLixTranslator.java:1160)
                at 
org.apache.calcite.adapter.enumerable.RexToLixTranslator.visitCall(RexToLixTranslator.java:101)
                at org.apache.calcite.rex.RexCall.accept(RexCall.java:189)
{code}

According to the documentation DATE_PART is just an alias for EXTRACT, which is 
(mostly implemented), so this should work.



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