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MDEV-26: Global transaction ID.

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Change of user interface to be more logical and more in line with expectations
to work similar to old-style replication.

User can now explicitly choose in CHANGE MASTER whether binlog position is
taken into account (master_gtid_pos=current_pos) or not (master_gtid_pos=
slave_pos) when slave connects to master.

@@gtid_pos is replaced by three separate variables @@gtid_slave_pos (can
be set by user, replicated GTIDs only), @@gtid_binlog_pos (read only), and
@@gtid_current_pos (a combination of the two, most recent GTID within each
domain). mysql.rpl_slave_state is renamed to mysql.gtid_slave_pos to match.

This fixes MDEV-4474.
This commit is contained in:
unknown
2013-05-22 17:36:48 +02:00
parent d795bc9ff8
commit 1cd6eb5f94
84 changed files with 996 additions and 513 deletions
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9
mysql-test/suite/sys_vars/r/gtid_current_pos_basic.result Normal file
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SET GLOBAL gtid_current_pos= '';
ERROR HY000: Variable 'gtid_current_pos' is a read only variable
SELECT variable_name FROM information_schema.global_variables
WHERE variable_name='gtid_current_pos';
variable_name
GTID_CURRENT_POS
SELECT @@gtid_current_pos;
SELECT @@session.gtid_current_pos;
ERROR HY000: Variable 'gtid_current_pos' is a GLOBAL variable