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

2 files changed, 127 insertions, 0 deletions

diff --git a/mysql-test/suite/heap/heap_auto_increment.result b/mysql-test/suite/heap/heap_auto_increment.result
index 5b04a77e9eb..d6504349d92 100644
--- a/mysql-test/suite/heap/heap_auto_increment.result
+++ b/mysql-test/suite/heap/heap_auto_increment.result
@@ -39,3 +39,123 @@ _rowid	_rowid	skey	sval
 1	1	1	hello
 2	2	2	hey
 drop table t1;
+#
+# MDEV-15352 AUTO_INCREMENT breaks after updating a column value to a negative number
+#
+SET @engine='MEMORY';
+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;
+$$
+CALL autoinc_mdev15353_one(@engine, 'tinyint');
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `id` tinyint(4) NOT NULL AUTO_INCREMENT,
+  `name` char(30) NOT NULL,
+  PRIMARY KEY (`id`)
+) ENGINE=MEMORY DEFAULT CHARSET=latin1
+id	name
+1	dog
+id	name
+-1	dog
+id	name
+-1	dog
+2	cat
+CALL autoinc_mdev15353_one(@engine, 'smallint');
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `id` smallint(6) NOT NULL AUTO_INCREMENT,
+  `name` char(30) NOT NULL,
+  PRIMARY KEY (`id`)
+) ENGINE=MEMORY DEFAULT CHARSET=latin1
+id	name
+1	dog
+id	name
+-1	dog
+id	name
+-1	dog
+2	cat
+CALL autoinc_mdev15353_one(@engine, 'mediumint');
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `id` mediumint(9) NOT NULL AUTO_INCREMENT,
+  `name` char(30) NOT NULL,
+  PRIMARY KEY (`id`)
+) ENGINE=MEMORY DEFAULT CHARSET=latin1
+id	name
+1	dog
+id	name
+-1	dog
+id	name
+-1	dog
+2	cat
+CALL autoinc_mdev15353_one(@engine, 'int');
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `name` char(30) NOT NULL,
+  PRIMARY KEY (`id`)
+) ENGINE=MEMORY DEFAULT CHARSET=latin1
+id	name
+1	dog
+id	name
+-1	dog
+id	name
+-1	dog
+2	cat
+CALL autoinc_mdev15353_one(@engine, 'bigint');
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `id` bigint(20) NOT NULL AUTO_INCREMENT,
+  `name` char(30) NOT NULL,
+  PRIMARY KEY (`id`)
+) ENGINE=MEMORY DEFAULT CHARSET=latin1
+id	name
+1	dog
+id	name
+-1	dog
+id	name
+-1	dog
+2	cat
+CALL autoinc_mdev15353_one(@engine, 'float');
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `id` float NOT NULL AUTO_INCREMENT,
+  `name` char(30) NOT NULL,
+  PRIMARY KEY (`id`)
+) ENGINE=MEMORY DEFAULT CHARSET=latin1
+id	name
+1	dog
+id	name
+-1	dog
+id	name
+-1	dog
+2	cat
+CALL autoinc_mdev15353_one(@engine, 'double');
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `id` double NOT NULL AUTO_INCREMENT,
+  `name` char(30) NOT NULL,
+  PRIMARY KEY (`id`)
+) ENGINE=MEMORY DEFAULT CHARSET=latin1
+id	name
+1	dog
+id	name
+-1	dog
+id	name
+-1	dog
+2	cat
+DROP PROCEDURE autoinc_mdev15353_one;
diff --git a/mysql-test/suite/heap/heap_auto_increment.test b/mysql-test/suite/heap/heap_auto_increment.test
index 016bc946209..6ec150f48da 100644
--- a/mysql-test/suite/heap/heap_auto_increment.test
+++ b/mysql-test/suite/heap/heap_auto_increment.test
@@ -33,3 +33,10 @@ select _rowid,t1._rowid,skey,sval from t1;
 drop table t1;
 
 # End of 4.1 tests
+
+--echo #
+--echo # MDEV-15352 AUTO_INCREMENT breaks after updating a column value to a negative number
+--echo #
+
+SET @engine='MEMORY';
+--source include/autoinc_mdev15353.inc