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-rw-r--r--mysql-test/t/user_var.test9
1 files changed, 9 insertions, 0 deletions
diff --git a/mysql-test/t/user_var.test b/mysql-test/t/user_var.test
index 6a64343b609..fa23d118634 100644
--- a/mysql-test/t/user_var.test
+++ b/mysql-test/t/user_var.test
@@ -404,4 +404,13 @@ SELECT f1, f2 FROM t1 ORDER BY f2;
DROP TRIGGER trg1;
DROP TABLE t1;
+
+--echo #
+--echo # Bug #12408412: GROUP_CONCAT + ORDER BY + INPUT/OUTPUT
+--echo # SAME USER VARIABLE = CRASH
+--echo #
+
+SET @bug12408412=1;
+SELECT GROUP_CONCAT(@bug12408412 ORDER BY 1) INTO @bug12408412;
+
--echo End of 5.5 tests