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-rw-r--r--mysql-test/t/func_test.test6
1 files changed, 6 insertions, 0 deletions
diff --git a/mysql-test/t/func_test.test b/mysql-test/t/func_test.test
index 2ad64b6c5a6..631639c7a74 100644
--- a/mysql-test/t/func_test.test
+++ b/mysql-test/t/func_test.test
@@ -108,4 +108,10 @@ select 5.1 mod 3, 5.1 mod -3, -5.1 mod 3, -5.1 mod -3;
select 5 mod 3, 5 mod -3, -5 mod 3, -5 mod -3;
+#
+# Bug #20924: UNSIGNED values in GREATEST() and LEAST() are treated as SIGNED
+#
+SELECT GREATEST(1, 18446744073709551615);
+SELECT LEAST(1, 18446744073709551615);
+
# End of 4.1 tests