[jira] [Created] (CALCITE-5050) Unexpected rowCount of aggregate without group keys

["Jing Zhang (Jira)" <ji...@apache.org>]

Jing Zhang created CALCITE-5050:
-----------------------------------

             Summary: Unexpected rowCount of aggregate without group keys
                 Key: CALCITE-5050
                 URL: https://issues.apache.org/jira/browse/CALCITE-5050
             Project: Calcite
          Issue Type: Bug
          Components: core
    Affects Versions: 1.29.0, 1.30.0
            Reporter: Jing Zhang


Currently, RowCount of aggregate without group keys are unexpected.
The problem could be appear in the following UT:

{code:java}
  @Test void testRowCountAggregateEmptyKey1() {
    fixture()
        .withRelFn(b ->
            b.scan("EMP")
                .aggregate(
                    b.groupKey(),
                    b.count(false, "C"))
                .build())
        .assertThatRowCount(is(1D), is(1D), is(1D));
  }
{code}

Now, the above UT would be failed because row count return 1.4D instead of 1D.



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