MDEV-17693 Shift/reduce conflicts for NAMES,ROLE,PASSWORD in the option_value_no_option_type grammar

1 files changed, 74 insertions, 0 deletions

diff --git a/mysql-test/main/parser.test b/mysql-test/main/parser.test
index 65db9c3cda3..040678a51df 100644
--- a/mysql-test/main/parser.test
+++ b/mysql-test/main/parser.test
@@ -1459,4 +1459,78 @@ DROP PROCEDURE p1;
 (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT (SELECT
 1
 )))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))));
+
+--echo #
+--echo # MDEV-17693 Shift/reduce conflicts for NAMES,ROLE,PASSWORD in the option_value_no_option_type grammar
+--echo #
+
+CREATE TABLE names (names INT);
+SELECT names FROM names AS names;
+DROP TABLE names;
+
+CREATE TABLE password (password INT);
+SELECT password FROM password AS password;
+DROP TABLE password;
+
+CREATE TABLE role (role INT);
+SELECT role FROM role AS role;
+DROP TABLE role;
+
+DELIMITER $$;
+BEGIN NOT ATOMIC
+  DECLARE names    VARCHAR(32) DEFAULT '[names]';
+  DECLARE password VARCHAR(32) DEFAULT '[password]';
+  DECLARE role     VARCHAR(32) DEFAULT '[role]';
+names:
+  LOOP
+    SELECT names;
+    LEAVE names;
+  END LOOP;
+password:
+  LOOP
+    SELECT password;
+    LEAVE password;
+  END LOOP;
+role:
+  LOOP
+    SELECT role;
+    LEAVE role;
+  END LOOP;
+END;
+$$
+DELIMITER ;$$
+
+DELIMITER $$;
+--error ER_SP_BAD_VAR_SHADOW
+BEGIN NOT ATOMIC
+  DECLARE names VARCHAR(32);
+  SET names='[names]';
+END;
+$$
+DELIMITER ;$$
+
+DELIMITER $$;
+--error ER_SP_BAD_VAR_SHADOW
+BEGIN NOT ATOMIC
+  DECLARE password VARCHAR(32);
+  SET password='[password]';
+END;
+$$
+DELIMITER ;$$
+
+DELIMITER $$;
+BEGIN NOT ATOMIC
+  DECLARE role VARCHAR(32);
+  SET role='[role]';
+END;
+$$
+DELIMITER ;$$
+
+--error ER_UNKNOWN_SYSTEM_VARIABLE
+SELECT @@GLOBAL.names;
+--error ER_UNKNOWN_SYSTEM_VARIABLE
+SELECT @@GLOBAL.password;
+--error ER_UNKNOWN_SYSTEM_VARIABLE
+SELECT @@GLOBAL.role;
+
 --echo End of 10.3 tests