chunweilei commented on a change in pull request #2146:
URL: https://github.com/apache/calcite/pull/2146#discussion_r487615286
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File path: core/src/test/java/org/apache/calcite/test/RelMetadataTest.java
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@@ -918,6 +918,28 @@ private void checkRelSelectivity(
@Test void testDistinctRowCountTable() {
// no unique key information is available so return null
+ RelNode rel = convertSql("select * from (values "
+ + "(1, 2, 3), "
+ + "(3, 4, 5), "
+ + "(3, 4, 5), "
+ + "(8, 4, 5) "
+ + ") t(c1, c2, c3)");
+ final RelMetadataQuery mq = rel.getCluster().getMetadataQuery();
+
+ ImmutableBitSet groupKey = ImmutableBitSet.of(0, 1, 2);
Review comment:
Could you add a test case which contains null literal?
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