MDEV-16534 PPC64: Unexpected error with a negative value into auto-increment columns in HEAP, MyISAM, ARIA

mysql-test/r/auto_increment.result

@@ -537,3 +537,32 @@ pk
 -5
 1
 drop table t1;
+#
+# Start of 5.5 tests
+#
+#
+# MDEV-16534 PPC64: Unexpected error with a negative values into auto-increment columns in HEAP, MyISAM, ARIA
+#
+CREATE TABLE t1 (
+id TINYINT NOT NULL AUTO_INCREMENT,
+name CHAR(30) NOT NULL,
+PRIMARY KEY (id)
+) ENGINE=MyISAM;
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `id` tinyint(4) NOT NULL AUTO_INCREMENT,
+  `name` char(30) NOT NULL,
+  PRIMARY KEY (`id`)
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+INSERT INTO t1 (name) VALUES ('dog');
+UPDATE t1 SET id=-1 WHERE id=1;
+INSERT INTO t1 (name) VALUES ('cat');
+SELECT * FROM t1;
+id	name
+-1	dog
+2	cat
+DROP TABLE t1;
+#
+# End of 5.5 tests
+#

mysql-test/suite/heap/heap_auto_increment.result

@@ -39,3 +39,32 @@ _rowid	_rowid	skey	sval
 1	1	1	hello
 2	2	2	hey
 drop table t1;
+#
+# Start of 5.5 tests
+#
+#
+# MDEV-16534 PPC64: Unexpected error with a negative values into auto-increment columns in HEAP, MyISAM, ARIA
+#
+CREATE TABLE t1 (
+id TINYINT NOT NULL AUTO_INCREMENT,
+name CHAR(30) NOT NULL,
+PRIMARY KEY (id)
+) ENGINE=MEMORY;
+SHOW CREATE TABLE t1;
+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
+INSERT INTO t1 (name) VALUES ('dog');
+UPDATE t1 SET id=-1 WHERE id=1;
+INSERT INTO t1 (name) VALUES ('cat');
+SELECT * FROM t1;
+id	name
+-1	dog
+2	cat
+DROP TABLE t1;
+#
+# End of 5.5 tests
+#

mysql-test/suite/heap/heap_auto_increment.test

@@ -33,3 +33,28 @@ select _rowid,t1._rowid,skey,sval from t1;
 drop table t1;
 
 # End of 4.1 tests
+
+--echo #
+--echo # Start of 5.5 tests
+--echo #
+
+--echo #
+--echo # MDEV-16534 PPC64: Unexpected error with a negative values into auto-increment columns in HEAP, MyISAM, ARIA
+--echo #
+
+CREATE TABLE t1 (
+  id TINYINT NOT NULL AUTO_INCREMENT,
+  name CHAR(30) NOT NULL,
+  PRIMARY KEY (id)
+) ENGINE=MEMORY;
+SHOW CREATE TABLE t1;
+INSERT INTO t1 (name) VALUES ('dog');
+UPDATE t1 SET id=-1 WHERE id=1;
+INSERT INTO t1 (name) VALUES ('cat');
+SELECT * FROM t1;
+DROP TABLE t1;
+
+--echo #
+--echo # End of 5.5 tests
+--echo #
+

mysql-test/suite/maria/maria.result

@@ -2697,3 +2697,32 @@ ALTER TABLE t1 DISABLE KEYS;
 INSERT INTO t1 (b) VALUES ('');
 ALTER TABLE t1 ENABLE KEYS;
 DROP TABLE t1;
+#
+# Start of 5.5 tests
+#
+#
+# MDEV-16534 PPC64: Unexpected error with a negative values into auto-increment columns in HEAP, MyISAM, ARIA
+#
+CREATE TABLE t1 (
+id TINYINT NOT NULL AUTO_INCREMENT,
+name CHAR(30) NOT NULL,
+PRIMARY KEY (id)
+) ENGINE=ARIA;
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `id` tinyint(4) NOT NULL AUTO_INCREMENT,
+  `name` char(30) NOT NULL,
+  PRIMARY KEY (`id`)
+) ENGINE=Aria DEFAULT CHARSET=latin1 PAGE_CHECKSUM=1
+INSERT INTO t1 (name) VALUES ('dog');
+UPDATE t1 SET id=-1 WHERE id=1;
+INSERT INTO t1 (name) VALUES ('cat');
+SELECT * FROM t1;
+id	name
+-1	dog
+2	cat
+DROP TABLE t1;
+#
+# End of 5.5 tests
+#

mysql-test/suite/maria/maria.test

@@ -1990,3 +1990,28 @@ aria_page_checksum=$default_checksum,
 aria_log_file_size=$default_log_file_size;
 --enable_result_log
 --enable_query_log
+
+
+--echo #
+--echo # Start of 5.5 tests
+--echo #
+
+--echo #
+--echo # MDEV-16534 PPC64: Unexpected error with a negative values into auto-increment columns in HEAP, MyISAM, ARIA
+--echo #
+
+CREATE TABLE t1 (
+  id TINYINT NOT NULL AUTO_INCREMENT,
+  name CHAR(30) NOT NULL,
+  PRIMARY KEY (id)
+) ENGINE=ARIA;
+SHOW CREATE TABLE t1;
+INSERT INTO t1 (name) VALUES ('dog');
+UPDATE t1 SET id=-1 WHERE id=1;
+INSERT INTO t1 (name) VALUES ('cat');
+SELECT * FROM t1;
+DROP TABLE t1;
+
+--echo #
+--echo # End of 5.5 tests
+--echo #

mysql-test/t/auto_increment.test

@@ -397,3 +397,28 @@ insert into t1 values(null);
 select last_insert_id();
 select * from t1;
 drop table t1;
+
+
+--echo #
+--echo # Start of 5.5 tests
+--echo #
+
+--echo #
+--echo # MDEV-16534 PPC64: Unexpected error with a negative values into auto-increment columns in HEAP, MyISAM, ARIA
+--echo #
+
+CREATE TABLE t1 (
+  id TINYINT NOT NULL AUTO_INCREMENT,
+  name CHAR(30) NOT NULL,
+  PRIMARY KEY (id)
+) ENGINE=MyISAM;
+SHOW CREATE TABLE t1;
+INSERT INTO t1 (name) VALUES ('dog');
+UPDATE t1 SET id=-1 WHERE id=1;
+INSERT INTO t1 (name) VALUES ('cat');
+SELECT * FROM t1;
+DROP TABLE t1;
+
+--echo #
+--echo # End of 5.5 tests
+--echo #

storage/heap/hp_hash.c

@@ -1012,7 +1012,7 @@ void heap_update_auto_increment(HP_INFO *info, const uchar *record)
 
   switch (info->s->auto_key_type) {
   case HA_KEYTYPE_INT8:
-    s_value= (longlong) *(char*)key;
+    s_value= (longlong) *(const signed char*) key;
     break;
   case HA_KEYTYPE_BINARY:
     value=(ulonglong)  *(uchar*) key;

storage/maria/ma_key.c

@@ -728,7 +728,7 @@ ulonglong ma_retrieve_auto_increment(const uchar *key, uint8 key_type)
 
   switch (key_type) {
   case HA_KEYTYPE_INT8:
-    s_value= (longlong) *(const char*)key;
+    s_value= (longlong) *(const signed char*) key;
     break;
   case HA_KEYTYPE_BINARY:
     value=(ulonglong)  *key;

storage/myisam/mi_key.c

@@ -553,7 +553,7 @@ ulonglong retrieve_auto_increment(MI_INFO *info,const uchar *record)
 
   switch (keyseg->type) {
   case HA_KEYTYPE_INT8:
-    s_value= (longlong) *(char*)key;
+    s_value= (longlong) *(const signed char*) key;
     break;
   case HA_KEYTYPE_BINARY:
     value=(ulonglong)  *(uchar*) key;