tjbanghart commented on code in PR #3434:
URL: https://github.com/apache/calcite/pull/3434#discussion_r1331860175
##########
core/src/test/java/org/apache/calcite/test/SqlToRelConverterTest.java:
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@@ -4690,6 +4690,23 @@ void checkUserDefinedOrderByOver(NullCollation
nullCollation) {
.ok();
}
+ /** Test case for:
+ * <a
href="https://issues.apache.org/jira/browse/CALCITE-6013";>[CALCITE-6013]
+ * Unnecessary measures added as projects during rel construction</a>.
+ */
+ @Test void testAvoidUnnecessaryMeasureProject() {
+ final String sql = "select deptno\n"
+ + "from empm\n"
+ + "group by deptno";
Review Comment:
The `GROUP BY` is needed here to trigger the bug correct? Otherwise
`createAggImpl` is not called?
Are we certain this issue only impacted aggregate queries?
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