mihaibudiu commented on code in PR #5009:
URL: https://github.com/apache/calcite/pull/5009#discussion_r3416519745
##########
core/src/test/java/org/apache/calcite/test/JdbcTest.java:
##########
@@ -1297,6 +1297,17 @@ private void checkResultSetMetaData(Connection
connection, String sql)
+ "c0=1998\n");
}
+ /** Test case for [CALCITE-7594] GROUP BY ALL: grouping only by a constant
+ * over empty input returns 0 rows. */
+ @Test void testGroupByAllOverEmptyInput() {
Review Comment:
I think that the preferred way to write such tests is to use quidem files
(suffix .iq), but this works too.
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