[MXS-220] LAST_INSERT_ID() query is redirect to slave if function call is in where clause - Jira

Hi,

If a query contains LAST_INSERT_ID() it should be redirected to master, even if it is in WHERE clause.

Also another syntax is not redirected to the master: SELECT @id:=LAST_INSERT_ID(); - please let me know if you need a test case for this as well.

Test case:

MariaDB [mariadb_test]> create table a (id serial, primary key(id));

Query OK, 0 rows affected (0.02 sec)

MariaDB [mariadb_test]> insert into a values(null);

Query OK, 1 row affected (0.00 sec)

MariaDB [mariadb_test]> select @@hostname from a WHERE id=last_insert_id();

Empty set (0.00 sec)

michaeldg [5:44 PM]

MariaDB [mariadb_test]> select @@hostname from a WHERE id=last_insert_id() or id=1;

+------------------------+

| @@hostname             |

+------------------------+

| 203.local |

+------------------------+

1 row in set (0.00 sec)

MariaDB [mariadb_test]> select @@hostname, last_insert_id() FROM a WHERE id=last_insert_id();

+------------------------+------------------+

| @@hostname             | last_insert_id() |

+------------------------+------------------+

| 201.local |                1 |

+------------------------+------------------+

1 row in set (0.00 sec)

201 = master, 203 = slave.

Please change it so all queries with LAST_INSERT_ID() function call get redirected to master.

Switched over to Item_func::func_name()

markus makela added a comment - 2015-07-20 16:15 Switched over to Item_func::func_name()

Relates to: 1.0.4 GA: 507 R/W split does not send last_insert_id() to the master

Michaël de groot added a comment - 2015-06-24 18:49 Relates to: 1.0.4 GA: 507 R/W split does not send last_insert_id() to the master

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