Bug#45823 Assertion failure in file row/row0mysql.c line 1386

Inserting a negative value in the autoincrement column of a
partitioned innodb table was causing the value of the auto
increment counter to wrap around into a very large positive
value. The consequences are the same as if a very large positive
value was inserted into a column, e.g. reduced autoincrement
range, failure to read autoincrement counter.

The current patch ensures that before calculating the next
auto increment value, the current value is within the positive
maximum allowed limit.

mysql-test/suite/parts/inc/partition_auto_increment.inc:
  Bug#45823 Assertion failure in file row/row0mysql.c line 1386
  
  Adds tests for performing insert,update and delete on a partition
  table with negative auto_increment values.
mysql-test/suite/parts/r/partition_auto_increment_innodb.result:
  Bug#45823 Assertion failure in file row/row0mysql.c line 1386
  
  Result file for the innodb engine.
mysql-test/suite/parts/r/partition_auto_increment_memory.result:
  Bug#45823 Assertion failure in file row/row0mysql.c line 1386
  
  Result file for the memory engine.
mysql-test/suite/parts/r/partition_auto_increment_myisam.result:
  Bug#45823 Assertion failure in file row/row0mysql.c line 1386
  
  Result file for the myisam engine.
mysql-test/suite/parts/r/partition_auto_increment_ndb.result:
  Bug#45823 Assertion failure in file row/row0mysql.c line 1386
  
  Result file for the ndb engine.
mysql-test/suite/parts/t/partition_auto_increment_archive.test:
  Bug#45823 Assertion failure in file row/row0mysql.c line 1386
  
  Adds a variable that allows the Archive engine to skip tests
  that involve insertion of negative auto increment values.
mysql-test/suite/parts/t/partition_auto_increment_blackhole.test:
  Bug#45823 Assertion failure in file row/row0mysql.c line 1386
  
  Adds a variable that allows the Blackhole engine to skip tests
  that involve insertion of negative auto increment values.
sql/ha_partition.cc:
  Bug#45823 Assertion failure in file row/row0mysql.c line 1386
  
  Ensures that the current value is lesser than the upper limit
  for the type of the field before setting the next auto increment
  value to be calculated.
sql/ha_partition.h:
  Bug#45823 Assertion failure in file row/row0mysql.c line 1386
  
  Modifies the set_auto_increment_if_higher function, to take
  into account negative auto increment values when doing a
  comparison.

mysql-test/suite/parts/inc/partition_auto_increment.inc

@@ -623,3 +623,195 @@ SHOW CREATE TABLE t1;
 SELECT * FROM t1 ORDER BY c1;
 DROP TABLE t1;
 
+if (!$skip_negative_auto_inc)
+{
+--echo #############################################################################
+--echo # Bug #45823 - Assertion failure in file row/row0mysql.c line 1386
+--echo # Bug #43988 - AUTO_INCREMENT errors with partitioned InnoDB tables in 5.1.31
+--echo ##############################################################################
+
+--echo # Inserting negative autoincrement values into a partition table (partitions >= 4)
+
+eval CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+  c2 INT) ENGINE=$engine PARTITION BY HASH(c1) PARTITIONS 4;
+
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (-1,-10);
+INSERT INTO t(c2) VALUES (30);
+INSERT INTO t(c2) VALUES (40);
+
+SELECT * FROM t ORDER BY c1 ASC;
+
+DROP TABLE t;
+
+--echo # Reading from a partition table (partitions >= 2 ) after inserting a negative
+--echo # value into the auto increment column
+
+
+eval CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+  c2 INT) ENGINE=$engine PARTITION BY HASH(c1) PARTITIONS 2;
+
+INSERT INTO t VALUES (-2,-20);
+INSERT INTO t(c2) VALUES (30);
+
+SELECT * FROM t ORDER BY c1 ASC;
+
+DROP TABLE t;
+
+--echo # Inserting negative auto increment value into a partition table (partitions >= 2)
+--echo # auto increment value > 2.
+
+eval CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+  c2 INT) ENGINE=$engine PARTITION BY HASH(c1) PARTITIONS 2;
+
+INSERT INTO t VALUES (-4,-20);
+INSERT INTO t(c2) VALUES (30);
+INSERT INTO t(c2) VALUES (40);
+
+SELECT * FROM t ORDER BY c1 ASC;
+
+DROP TABLE t;
+
+--echo # Inserting -1 into autoincrement column of a partition table (partition >= 4)
+
+eval CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+  c2 INT) ENGINE=$engine PARTITION BY HASH(c1) PARTITIONS 4;
+
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (-1,-10);
+
+SELECT * FROM t ORDER BY c1 ASC;
+
+INSERT INTO t(c2) VALUES (30);
+
+SELECT * FROM t ORDER BY c1 ASC;
+
+DROP TABLE t;
+
+--echo # Deleting from an auto increment table after inserting negative values
+
+eval CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+  c2 INT) ENGINE=$engine PARTITION BY HASH(c1) PARTITIONS 4; 
+
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (-1,-10);
+INSERT INTO t(c2) VALUES (30);
+INSERT INTO t VALUES (-3,-20);
+INSERT INTO t(c2) VALUES (40);
+
+SELECT * FROM t ORDER BY c1 ASC;
+
+if (!$skip_delete)
+{ 
+DELETE FROM t WHERE c1 > 1;
+}
+
+SELECT * FROM t ORDER BY c1 ASC;
+
+DROP TABLE t;
+
+--echo # Inserting a positive value that exceeds maximum allowed value for an
+--echo # Auto Increment column (positive maximum)
+
+eval CREATE TABLE t (c1 TINYINT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+  c2 INT) ENGINE=$engine PARTITION BY HASH(c1) PARTITIONS 4;
+
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (126,30);
+INSERT INTO t VALUES (127,40);
+
+--error ER_DUP_ENTRY
+INSERT INTO t VALUES (128,50);
+--error ER_DUP_ENTRY 
+INSERT INTO t VALUES (129,60);
+
+SELECT * FROM t ORDER BY c1 ASC;
+
+DROP TABLE t;
+
+--echo # Inserting a negative value that goes below minimum allowed value for an
+--echo # Auto Increment column (negative minimum)
+
+eval CREATE TABLE t (c1 TINYINT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+  c2 INT) ENGINE=$engine PARTITION BY HASH(c1) PARTITIONS 4;
+
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (-127,30);
+INSERT INTO t VALUES (-128,40);
+
+--error ER_DUP_ENTRY
+INSERT INTO t VALUES (-129,50);
+--error ER_DUP_ENTRY
+INSERT INTO t VALUES (-130,60);
+
+SELECT * FROM t ORDER BY c1 ASC;
+
+DROP TABLE t;
+
+--echo # Updating the partition table with a negative Auto Increment value
+
+eval CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+  c2 INT) ENGINE=$engine PARTITION BY HASH(c1) PARTITIONS 4;
+
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (-1,-10);
+INSERT INTO t(c2) VALUES (30);
+
+SELECT * FROM t ORDER BY c1 ASC;
+
+if (!$skip_update)
+{ 
+UPDATE t SET c1 = -6 WHERE c1 = 2;
+}
+
+SELECT * FROM t ORDER BY c1 ASC;
+
+INSERT INTO t(c2) VALUES (40);
+INSERT INTO t(c2) VALUES (50);
+
+if (!$skip_update)
+{ 
+UPDATE t SET c1 = -6 WHERE c1 = 2;
+}
+
+SELECT * FROM t ORDER BY c1 ASC;
+
+DROP TABLE t;
+
+--echo # Updating the partition table with a value that crosses the upper limits
+--echo # on both the positive and the negative side.
+
+eval CREATE TABLE t (c1 TINYINT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+  c2 INT) ENGINE=$engine PARTITION BY HASH(c1) PARTITIONS 4;
+
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (126,30);
+INSERT INTO t VALUES (127,40);
+
+SELECT * FROM t ORDER BY c1 ASC;
+
+if (!$skip_update)
+{ 
+UPDATE t SET c1 = 130 where c1 = 127;
+}
+
+SELECT * FROM t ORDER BY c1 ASC;
+
+if (!$skip_update)
+{ 
+UPDATE t SET c1 = -140 where c1 = 126;
+}
+
+SELECT * FROM t ORDER BY c1 ASC;
+
+DROP TABLE t;
+
+--echo ##############################################################################
+}

mysql-test/suite/parts/r/partition_auto_increment_innodb.result

@@ -825,3 +825,194 @@ c1
 4
 5
 DROP TABLE t1;
+#############################################################################
+# Bug #45823 - Assertion failure in file row/row0mysql.c line 1386
+# Bug #43988 - AUTO_INCREMENT errors with partitioned InnoDB tables in 5.1.31
+##############################################################################
+# Inserting negative autoincrement values into a partition table (partitions >= 4)
+CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='InnoDB' PARTITION BY HASH(c1) PARTITIONS 4;
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (-1,-10);
+INSERT INTO t(c2) VALUES (30);
+INSERT INTO t(c2) VALUES (40);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-1	-10
+1	10
+2	20
+3	30
+4	40
+DROP TABLE t;
+# Reading from a partition table (partitions >= 2 ) after inserting a negative
+# value into the auto increment column
+CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='InnoDB' PARTITION BY HASH(c1) PARTITIONS 2;
+INSERT INTO t VALUES (-2,-20);
+INSERT INTO t(c2) VALUES (30);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-2	-20
+1	30
+DROP TABLE t;
+# Inserting negative auto increment value into a partition table (partitions >= 2)
+# auto increment value > 2.
+CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='InnoDB' PARTITION BY HASH(c1) PARTITIONS 2;
+INSERT INTO t VALUES (-4,-20);
+INSERT INTO t(c2) VALUES (30);
+INSERT INTO t(c2) VALUES (40);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-4	-20
+1	30
+2	40
+DROP TABLE t;
+# Inserting -1 into autoincrement column of a partition table (partition >= 4)
+CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='InnoDB' PARTITION BY HASH(c1) PARTITIONS 4;
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (-1,-10);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-1	-10
+1	10
+2	20
+INSERT INTO t(c2) VALUES (30);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-1	-10
+1	10
+2	20
+3	30
+DROP TABLE t;
+# Deleting from an auto increment table after inserting negative values
+CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='InnoDB' PARTITION BY HASH(c1) PARTITIONS 4;
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (-1,-10);
+INSERT INTO t(c2) VALUES (30);
+INSERT INTO t VALUES (-3,-20);
+INSERT INTO t(c2) VALUES (40);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-3	-20
+-1	-10
+1	10
+2	20
+3	30
+4	40
+DELETE FROM t WHERE c1 > 1;
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-3	-20
+-1	-10
+1	10
+DROP TABLE t;
+# Inserting a positive value that exceeds maximum allowed value for an
+# Auto Increment column (positive maximum)
+CREATE TABLE t (c1 TINYINT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='InnoDB' PARTITION BY HASH(c1) PARTITIONS 4;
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (126,30);
+INSERT INTO t VALUES (127,40);
+INSERT INTO t VALUES (128,50);
+ERROR 23000: Duplicate entry '127' for key 'PRIMARY'
+INSERT INTO t VALUES (129,60);
+ERROR 23000: Duplicate entry '127' for key 'PRIMARY'
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+1	10
+2	20
+126	30
+127	40
+DROP TABLE t;
+# Inserting a negative value that goes below minimum allowed value for an
+# Auto Increment column (negative minimum)
+CREATE TABLE t (c1 TINYINT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='InnoDB' PARTITION BY HASH(c1) PARTITIONS 4;
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (-127,30);
+INSERT INTO t VALUES (-128,40);
+INSERT INTO t VALUES (-129,50);
+ERROR 23000: Duplicate entry '-128' for key 'PRIMARY'
+INSERT INTO t VALUES (-130,60);
+ERROR 23000: Duplicate entry '-128' for key 'PRIMARY'
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-128	40
+-127	30
+1	10
+2	20
+DROP TABLE t;
+# Updating the partition table with a negative Auto Increment value
+CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='InnoDB' PARTITION BY HASH(c1) PARTITIONS 4;
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (-1,-10);
+INSERT INTO t(c2) VALUES (30);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-1	-10
+1	10
+2	20
+3	30
+UPDATE t SET c1 = -6 WHERE c1 = 2;
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-6	20
+-1	-10
+1	10
+3	30
+INSERT INTO t(c2) VALUES (40);
+INSERT INTO t(c2) VALUES (50);
+UPDATE t SET c1 = -6 WHERE c1 = 2;
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-6	20
+-1	-10
+1	10
+3	30
+4	40
+5	50
+DROP TABLE t;
+# Updating the partition table with a value that crosses the upper limits
+# on both the positive and the negative side.
+CREATE TABLE t (c1 TINYINT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='InnoDB' PARTITION BY HASH(c1) PARTITIONS 4;
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (126,30);
+INSERT INTO t VALUES (127,40);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+1	10
+2	20
+126	30
+127	40
+UPDATE t SET c1 = 130 where c1 = 127;
+Warnings:
+Warning	1264	Out of range value for column 'c1' at row 1
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+1	10
+2	20
+126	30
+127	40
+UPDATE t SET c1 = -140 where c1 = 126;
+Warnings:
+Warning	1264	Out of range value for column 'c1' at row 1
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-128	30
+1	10
+2	20
+127	40
+DROP TABLE t;
+##############################################################################

mysql-test/suite/parts/r/partition_auto_increment_memory.result

@@ -851,3 +851,194 @@ c1
 4
 5
 DROP TABLE t1;
+#############################################################################
+# Bug #45823 - Assertion failure in file row/row0mysql.c line 1386
+# Bug #43988 - AUTO_INCREMENT errors with partitioned InnoDB tables in 5.1.31
+##############################################################################
+# Inserting negative autoincrement values into a partition table (partitions >= 4)
+CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='Memory' PARTITION BY HASH(c1) PARTITIONS 4;
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (-1,-10);
+INSERT INTO t(c2) VALUES (30);
+INSERT INTO t(c2) VALUES (40);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-1	-10
+1	10
+2	20
+3	30
+4	40
+DROP TABLE t;
+# Reading from a partition table (partitions >= 2 ) after inserting a negative
+# value into the auto increment column
+CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='Memory' PARTITION BY HASH(c1) PARTITIONS 2;
+INSERT INTO t VALUES (-2,-20);
+INSERT INTO t(c2) VALUES (30);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-2	-20
+1	30
+DROP TABLE t;
+# Inserting negative auto increment value into a partition table (partitions >= 2)
+# auto increment value > 2.
+CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='Memory' PARTITION BY HASH(c1) PARTITIONS 2;
+INSERT INTO t VALUES (-4,-20);
+INSERT INTO t(c2) VALUES (30);
+INSERT INTO t(c2) VALUES (40);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-4	-20
+1	30
+2	40
+DROP TABLE t;
+# Inserting -1 into autoincrement column of a partition table (partition >= 4)
+CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='Memory' PARTITION BY HASH(c1) PARTITIONS 4;
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (-1,-10);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-1	-10
+1	10
+2	20
+INSERT INTO t(c2) VALUES (30);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-1	-10
+1	10
+2	20
+3	30
+DROP TABLE t;
+# Deleting from an auto increment table after inserting negative values
+CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='Memory' PARTITION BY HASH(c1) PARTITIONS 4;
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (-1,-10);
+INSERT INTO t(c2) VALUES (30);
+INSERT INTO t VALUES (-3,-20);
+INSERT INTO t(c2) VALUES (40);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-3	-20
+-1	-10
+1	10
+2	20
+3	30
+4	40
+DELETE FROM t WHERE c1 > 1;
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-3	-20
+-1	-10
+1	10
+DROP TABLE t;
+# Inserting a positive value that exceeds maximum allowed value for an
+# Auto Increment column (positive maximum)
+CREATE TABLE t (c1 TINYINT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='Memory' PARTITION BY HASH(c1) PARTITIONS 4;
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (126,30);
+INSERT INTO t VALUES (127,40);
+INSERT INTO t VALUES (128,50);
+ERROR 23000: Duplicate entry '127' for key 'PRIMARY'
+INSERT INTO t VALUES (129,60);
+ERROR 23000: Duplicate entry '127' for key 'PRIMARY'
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+1	10
+2	20
+126	30
+127	40
+DROP TABLE t;
+# Inserting a negative value that goes below minimum allowed value for an
+# Auto Increment column (negative minimum)
+CREATE TABLE t (c1 TINYINT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='Memory' PARTITION BY HASH(c1) PARTITIONS 4;
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (-127,30);
+INSERT INTO t VALUES (-128,40);
+INSERT INTO t VALUES (-129,50);
+ERROR 23000: Duplicate entry '-128' for key 'PRIMARY'
+INSERT INTO t VALUES (-130,60);
+ERROR 23000: Duplicate entry '-128' for key 'PRIMARY'
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-128	40
+-127	30
+1	10
+2	20
+DROP TABLE t;
+# Updating the partition table with a negative Auto Increment value
+CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='Memory' PARTITION BY HASH(c1) PARTITIONS 4;
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (-1,-10);
+INSERT INTO t(c2) VALUES (30);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-1	-10
+1	10
+2	20
+3	30
+UPDATE t SET c1 = -6 WHERE c1 = 2;
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-6	20
+-1	-10
+1	10
+3	30
+INSERT INTO t(c2) VALUES (40);
+INSERT INTO t(c2) VALUES (50);
+UPDATE t SET c1 = -6 WHERE c1 = 2;
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-6	20
+-1	-10
+1	10
+3	30
+4	40
+5	50
+DROP TABLE t;
+# Updating the partition table with a value that crosses the upper limits
+# on both the positive and the negative side.
+CREATE TABLE t (c1 TINYINT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='Memory' PARTITION BY HASH(c1) PARTITIONS 4;
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (126,30);
+INSERT INTO t VALUES (127,40);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+1	10
+2	20
+126	30
+127	40
+UPDATE t SET c1 = 130 where c1 = 127;
+Warnings:
+Warning	1264	Out of range value for column 'c1' at row 1
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+1	10
+2	20
+126	30
+127	40
+UPDATE t SET c1 = -140 where c1 = 126;
+Warnings:
+Warning	1264	Out of range value for column 'c1' at row 1
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-128	30
+1	10
+2	20
+127	40
+DROP TABLE t;
+##############################################################################

mysql-test/suite/parts/r/partition_auto_increment_myisam.result

@@ -870,3 +870,194 @@ c1
 4
 5
 DROP TABLE t1;
+#############################################################################
+# Bug #45823 - Assertion failure in file row/row0mysql.c line 1386
+# Bug #43988 - AUTO_INCREMENT errors with partitioned InnoDB tables in 5.1.31
+##############################################################################
+# Inserting negative autoincrement values into a partition table (partitions >= 4)
+CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='MyISAM' PARTITION BY HASH(c1) PARTITIONS 4;
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (-1,-10);
+INSERT INTO t(c2) VALUES (30);
+INSERT INTO t(c2) VALUES (40);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-1	-10
+1	10
+2	20
+3	30
+4	40
+DROP TABLE t;
+# Reading from a partition table (partitions >= 2 ) after inserting a negative
+# value into the auto increment column
+CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='MyISAM' PARTITION BY HASH(c1) PARTITIONS 2;
+INSERT INTO t VALUES (-2,-20);
+INSERT INTO t(c2) VALUES (30);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-2	-20
+1	30
+DROP TABLE t;
+# Inserting negative auto increment value into a partition table (partitions >= 2)
+# auto increment value > 2.
+CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='MyISAM' PARTITION BY HASH(c1) PARTITIONS 2;
+INSERT INTO t VALUES (-4,-20);
+INSERT INTO t(c2) VALUES (30);
+INSERT INTO t(c2) VALUES (40);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-4	-20
+1	30
+2	40
+DROP TABLE t;
+# Inserting -1 into autoincrement column of a partition table (partition >= 4)
+CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='MyISAM' PARTITION BY HASH(c1) PARTITIONS 4;
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (-1,-10);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-1	-10
+1	10
+2	20
+INSERT INTO t(c2) VALUES (30);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-1	-10
+1	10
+2	20
+3	30
+DROP TABLE t;
+# Deleting from an auto increment table after inserting negative values
+CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='MyISAM' PARTITION BY HASH(c1) PARTITIONS 4;
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (-1,-10);
+INSERT INTO t(c2) VALUES (30);
+INSERT INTO t VALUES (-3,-20);
+INSERT INTO t(c2) VALUES (40);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-3	-20
+-1	-10
+1	10
+2	20
+3	30
+4	40
+DELETE FROM t WHERE c1 > 1;
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-3	-20
+-1	-10
+1	10
+DROP TABLE t;
+# Inserting a positive value that exceeds maximum allowed value for an
+# Auto Increment column (positive maximum)
+CREATE TABLE t (c1 TINYINT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='MyISAM' PARTITION BY HASH(c1) PARTITIONS 4;
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (126,30);
+INSERT INTO t VALUES (127,40);
+INSERT INTO t VALUES (128,50);
+ERROR 23000: Duplicate entry '127' for key 'PRIMARY'
+INSERT INTO t VALUES (129,60);
+ERROR 23000: Duplicate entry '127' for key 'PRIMARY'
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+1	10
+2	20
+126	30
+127	40
+DROP TABLE t;
+# Inserting a negative value that goes below minimum allowed value for an
+# Auto Increment column (negative minimum)
+CREATE TABLE t (c1 TINYINT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='MyISAM' PARTITION BY HASH(c1) PARTITIONS 4;
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (-127,30);
+INSERT INTO t VALUES (-128,40);
+INSERT INTO t VALUES (-129,50);
+ERROR 23000: Duplicate entry '-128' for key 'PRIMARY'
+INSERT INTO t VALUES (-130,60);
+ERROR 23000: Duplicate entry '-128' for key 'PRIMARY'
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-128	40
+-127	30
+1	10
+2	20
+DROP TABLE t;
+# Updating the partition table with a negative Auto Increment value
+CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='MyISAM' PARTITION BY HASH(c1) PARTITIONS 4;
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (-1,-10);
+INSERT INTO t(c2) VALUES (30);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-1	-10
+1	10
+2	20
+3	30
+UPDATE t SET c1 = -6 WHERE c1 = 2;
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-6	20
+-1	-10
+1	10
+3	30
+INSERT INTO t(c2) VALUES (40);
+INSERT INTO t(c2) VALUES (50);
+UPDATE t SET c1 = -6 WHERE c1 = 2;
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-6	20
+-1	-10
+1	10
+3	30
+4	40
+5	50
+DROP TABLE t;
+# Updating the partition table with a value that crosses the upper limits
+# on both the positive and the negative side.
+CREATE TABLE t (c1 TINYINT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='MyISAM' PARTITION BY HASH(c1) PARTITIONS 4;
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (126,30);
+INSERT INTO t VALUES (127,40);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+1	10
+2	20
+126	30
+127	40
+UPDATE t SET c1 = 130 where c1 = 127;
+Warnings:
+Warning	1264	Out of range value for column 'c1' at row 1
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+1	10
+2	20
+126	30
+127	40
+UPDATE t SET c1 = -140 where c1 = 126;
+Warnings:
+Warning	1264	Out of range value for column 'c1' at row 1
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-128	30
+1	10
+2	20
+127	40
+DROP TABLE t;
+##############################################################################

mysql-test/suite/parts/r/partition_auto_increment_ndb.result

@@ -846,3 +846,194 @@ c1
 4
 5
 DROP TABLE t1;
+#############################################################################
+# Bug #45823 - Assertion failure in file row/row0mysql.c line 1386
+# Bug #43988 - AUTO_INCREMENT errors with partitioned InnoDB tables in 5.1.31
+##############################################################################
+# Inserting negative autoincrement values into a partition table (partitions >= 4)
+CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='NDB' PARTITION BY HASH(c1) PARTITIONS 4;
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (-1,-10);
+INSERT INTO t(c2) VALUES (30);
+INSERT INTO t(c2) VALUES (40);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-1	-10
+1	10
+2	20
+3	30
+4	40
+DROP TABLE t;
+# Reading from a partition table (partitions >= 2 ) after inserting a negative
+# value into the auto increment column
+CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='NDB' PARTITION BY HASH(c1) PARTITIONS 2;
+INSERT INTO t VALUES (-2,-20);
+INSERT INTO t(c2) VALUES (30);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-2	-20
+1	30
+DROP TABLE t;
+# Inserting negative auto increment value into a partition table (partitions >= 2)
+# auto increment value > 2.
+CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='NDB' PARTITION BY HASH(c1) PARTITIONS 2;
+INSERT INTO t VALUES (-4,-20);
+INSERT INTO t(c2) VALUES (30);
+INSERT INTO t(c2) VALUES (40);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-4	-20
+1	30
+2	40
+DROP TABLE t;
+# Inserting -1 into autoincrement column of a partition table (partition >= 4)
+CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='NDB' PARTITION BY HASH(c1) PARTITIONS 4;
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (-1,-10);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-1	-10
+1	10
+2	20
+INSERT INTO t(c2) VALUES (30);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-1	-10
+1	10
+2	20
+3	30
+DROP TABLE t;
+# Deleting from an auto increment table after inserting negative values
+CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='NDB' PARTITION BY HASH(c1) PARTITIONS 4;
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (-1,-10);
+INSERT INTO t(c2) VALUES (30);
+INSERT INTO t VALUES (-3,-20);
+INSERT INTO t(c2) VALUES (40);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-3	-20
+-1	-10
+1	10
+2	20
+3	30
+4	40
+DELETE FROM t WHERE c1 > 1;
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-3	-20
+-1	-10
+1	10
+DROP TABLE t;
+# Inserting a positive value that exceeds maximum allowed value for an
+# Auto Increment column (positive maximum)
+CREATE TABLE t (c1 TINYINT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='NDB' PARTITION BY HASH(c1) PARTITIONS 4;
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (126,30);
+INSERT INTO t VALUES (127,40);
+INSERT INTO t VALUES (128,50);
+ERROR 23000: Duplicate entry '127' for key 'PRIMARY'
+INSERT INTO t VALUES (129,60);
+ERROR 23000: Duplicate entry '127' for key 'PRIMARY'
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+1	10
+2	20
+126	30
+127	40
+DROP TABLE t;
+# Inserting a negative value that goes below minimum allowed value for an
+# Auto Increment column (negative minimum)
+CREATE TABLE t (c1 TINYINT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='NDB' PARTITION BY HASH(c1) PARTITIONS 4;
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (-127,30);
+INSERT INTO t VALUES (-128,40);
+INSERT INTO t VALUES (-129,50);
+ERROR 23000: Duplicate entry '-128' for key 'PRIMARY'
+INSERT INTO t VALUES (-130,60);
+ERROR 23000: Duplicate entry '-128' for key 'PRIMARY'
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-128	40
+-127	30
+1	10
+2	20
+DROP TABLE t;
+# Updating the partition table with a negative Auto Increment value
+CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='NDB' PARTITION BY HASH(c1) PARTITIONS 4;
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (-1,-10);
+INSERT INTO t(c2) VALUES (30);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-1	-10
+1	10
+2	20
+3	30
+UPDATE t SET c1 = -6 WHERE c1 = 2;
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-6	20
+-1	-10
+1	10
+3	30
+INSERT INTO t(c2) VALUES (40);
+INSERT INTO t(c2) VALUES (50);
+UPDATE t SET c1 = -6 WHERE c1 = 2;
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-6	20
+-1	-10
+1	10
+3	30
+4	40
+5	50
+DROP TABLE t;
+# Updating the partition table with a value that crosses the upper limits
+# on both the positive and the negative side.
+CREATE TABLE t (c1 TINYINT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
+c2 INT) ENGINE='NDB' PARTITION BY HASH(c1) PARTITIONS 4;
+INSERT INTO t(c2) VALUES (10);
+INSERT INTO t(c2) VALUES (20);
+INSERT INTO t VALUES (126,30);
+INSERT INTO t VALUES (127,40);
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+1	10
+2	20
+126	30
+127	40
+UPDATE t SET c1 = 130 where c1 = 127;
+Warnings:
+Warning	1264	Out of range value for column 'c1' at row 1
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+1	10
+2	20
+126	30
+127	40
+UPDATE t SET c1 = -140 where c1 = 126;
+Warnings:
+Warning	1264	Out of range value for column 'c1' at row 1
+SELECT * FROM t ORDER BY c1 ASC;
+c1	c2
+-128	30
+1	10
+2	20
+127	40
+DROP TABLE t;
+##############################################################################

mysql-test/suite/parts/t/partition_auto_increment_archive.test

@@ -30,6 +30,9 @@ let $skip_delete= 1;
 let $skip_truncate= 1;
 let $skip_update= 1;
 let $only_ai_pk= 1;
+# Bug#45823 Assertion failure in file row/row0mysql.c line 1386
+# Archive does not handle negative autoincrement values correctly
+let $skip_negative_auto_inc= 1;
 
 ##### Storage engine to be tested
 let $engine= 'Archive';

mysql-test/suite/parts/t/partition_auto_increment_blackhole.test

@@ -25,6 +25,9 @@
 #------------------------------------------------------------------------------#
 # Engine specific settings and requirements
 --source include/have_blackhole.inc
+# Bug#45823 Assertion failure in file row/row0mysql.c line 1386
+# Blackhole does not handle negative autoincrement values correctly
+let $skip_negative_auto_inc= 1;
 
 ##### Storage engine to be tested
 let $engine= 'Blackhole';

sql/ha_partition.cc

@@ -3024,7 +3024,7 @@ int ha_partition::write_row(uchar * buf)
   tmp_disable_binlog(thd); /* Do not replicate the low-level changes. */
   error= m_file[part_id]->ha_write_row(buf);
   if (have_auto_increment && !table->s->next_number_keypart)
-    set_auto_increment_if_higher(table->next_number_field->val_int());
+    set_auto_increment_if_higher(table->next_number_field);
   reenable_binlog(thd);
 exit:
   table->timestamp_field_type= orig_timestamp_type;
@@ -3128,7 +3128,7 @@ int ha_partition::update_row(const uchar *old_data, uchar *new_data)
     HA_DATA_PARTITION *ha_data= (HA_DATA_PARTITION*) table_share->ha_data;
     if (!ha_data->auto_inc_initialized)
       info(HA_STATUS_AUTO);
-    set_auto_increment_if_higher(table->found_next_number_field->val_int());
+    set_auto_increment_if_higher(table->found_next_number_field);
   }
   table->timestamp_field_type= orig_timestamp_type;
   DBUG_RETURN(error);

sql/ha_partition.h

@@ -936,9 +936,11 @@ class ha_partition :public handler
       auto_increment_lock= FALSE;
     }
   }
-  virtual void set_auto_increment_if_higher(const ulonglong nr)
+  virtual void set_auto_increment_if_higher(Field *field)
   {
     HA_DATA_PARTITION *ha_data= (HA_DATA_PARTITION*) table_share->ha_data;
+    ulonglong nr= (((Field_num*) field)->unsigned_flag ||
+                   field->val_int() > 0) ? field->val_int() : 0;
     lock_auto_increment();
     DBUG_ASSERT(ha_data->auto_inc_initialized == TRUE);
     /* must check when the mutex is taken */