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Bug#39828 : Autoinc wraps around when offset and increment > 1

Browse Source 
Auto increment value wraps when performing a bulk insert with
auto_increment_increment and auto_increment_offset greater than
one.
The fix:
If overflow happened then return MAX_ULONGLONG value as an
indication of overflow and check this before storing the
value into the field in update_auto_increment().
This commit is contained in:
Sergey Glukhov
2010-12-13 14:48:12 +03:00
parent 4096f35a39
commit 0e77c3295a
7 changed files with 88 additions and 118 deletions
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18
mysql-test/suite/innodb_plugin/r/innodb-autoinc.result
View File

@@ -471,17 +471,12 @@ SHOW VARIABLES LIKE "%auto_inc%";
Variable_name Value
auto_increment_increment 2
auto_increment_offset 10
INSERT INTO t1 VALUES (NULL),(NULL),(NULL),(NULL),(NULL),(NULL);
INSERT INTO t1 VALUES (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL);
ERROR HY000: Failed to read auto-increment value from storage engine
SELECT * FROM t1;
c1
1
18446744073709551603
18446744073709551604
18446744073709551606
18446744073709551608
18446744073709551610
18446744073709551612
18446744073709551614
DROP TABLE t1;
SET @@SESSION.AUTO_INCREMENT_INCREMENT=1, @@SESSION.AUTO_INCREMENT_OFFSET=1;
SET @@INSERT_ID=1;
@@ -504,13 +499,12 @@ SHOW VARIABLES LIKE "%auto_inc%";
Variable_name Value
auto_increment_increment 5
auto_increment_offset 7
INSERT INTO t1 VALUES (NULL),(NULL);
INSERT INTO t1 VALUES (NULL),(NULL), (NULL);
ERROR HY000: Failed to read auto-increment value from storage engine
SELECT * FROM t1;
c1
1
18446744073709551603
18446744073709551607
18446744073709551612
DROP TABLE t1;
SET @@SESSION.AUTO_INCREMENT_INCREMENT=1, @@SESSION.AUTO_INCREMENT_OFFSET=1;
SET @@INSERT_ID=1;
@@ -572,12 +566,12 @@ SHOW VARIABLES LIKE "%auto_inc%";
Variable_name Value
auto_increment_increment 65535
auto_increment_offset 65535
INSERT INTO t1 VALUES (NULL);
INSERT INTO t1 VALUES (NULL),(NULL);
ERROR 22003: Out of range value for column 't1' at row 167
SELECT * FROM t1;
c1
1
18446744073709551610
18446744073709551615
DROP TABLE t1;
SET @@SESSION.AUTO_INCREMENT_INCREMENT=1, @@SESSION.AUTO_INCREMENT_OFFSET=1;
SET @@INSERT_ID=1;