MDEV-15352 AUTO_INCREMENT breaks after updating a column value to a negative number

1 files changed, 29 insertions, 0 deletions

diff --git a/mysql-test/include/autoinc_mdev15353.inc b/mysql-test/include/autoinc_mdev15353.inc
new file mode 100644
index 00000000000..9085cb29f20
--- /dev/null
+++ b/mysql-test/include/autoinc_mdev15353.inc
@@ -0,0 +1,29 @@
+DELIMITER $$;
+CREATE PROCEDURE autoinc_mdev15353_one(engine VARCHAR(64), t VARCHAR(64))
+BEGIN
+  DECLARE query TEXT DEFAULT 'CREATE TABLE t1 ('
+                             '  id TTT NOT NULL AUTO_INCREMENT,'
+                             '  name CHAR(30) NOT NULL,'
+                             '  PRIMARY KEY (id)) ENGINE=EEE';
+  EXECUTE IMMEDIATE REPLACE(REPLACE(query,'TTT', t), 'EEE', engine);
+  SHOW CREATE TABLE t1;
+  INSERT INTO t1 (name) VALUES ('dog');
+  SELECT * FROM t1;
+  UPDATE t1 SET id=-1 WHERE id=1;
+  SELECT * FROM t1;
+  INSERT INTO t1 (name) VALUES ('cat');
+  SELECT * FROM t1;
+  DROP TABLE t1;
+END;
+$$
+DELIMITER ;$$
+
+CALL autoinc_mdev15353_one(@engine, 'tinyint');
+CALL autoinc_mdev15353_one(@engine, 'smallint');
+CALL autoinc_mdev15353_one(@engine, 'mediumint');
+CALL autoinc_mdev15353_one(@engine, 'int');
+CALL autoinc_mdev15353_one(@engine, 'bigint');
+CALL autoinc_mdev15353_one(@engine, 'float');
+CALL autoinc_mdev15353_one(@engine, 'double');
+
+DROP PROCEDURE autoinc_mdev15353_one;