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-rw-r--r--mysql-test/t/ctype_utf32.test5
1 files changed, 5 insertions, 0 deletions
diff --git a/mysql-test/t/ctype_utf32.test b/mysql-test/t/ctype_utf32.test
index 2fe075f24ef..f364f1bd3a5 100644
--- a/mysql-test/t/ctype_utf32.test
+++ b/mysql-test/t/ctype_utf32.test
@@ -889,6 +889,11 @@ SELECT CHAR_LENGTH(TRIM(BOTH 0x0001 FROM _utf32 0x00000061));
SELECT CHAR_LENGTH(TRIM(BOTH 0x61 FROM _utf32 0x00000061));
SELECT CHAR_LENGTH(TRIM(BOTH 0x00 FROM _utf32 0x00000061));
+#
+# potential signedness issue
+#
+select hex(lower(cast(0xffff0000 as char character set utf32))) as c;
+
--echo #
--echo # End of 5.5 tests
--echo #