2006-02-08 13:08:19 +01:00
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###########################################################
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2006-02-08 16:47:46 +01:00
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# 2006-02-01: By JBM: Added 1022, ORDER BY
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2006-02-08 13:08:19 +01:00
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###########################################################
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2005-12-22 06:39:02 +01:00
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# See if queries that use both auto_increment and LAST_INSERT_ID()
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# are replicated well
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2006-02-08 16:47:46 +01:00
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############################################################
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# REQUIREMENT
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# Auto increment should work for a table with an auto_increment
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# column and index but without primary key.
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##############################################################
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2006-09-21 14:19:17 +02:00
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--echo #
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--echo # Setup
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--echo #
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2005-12-22 06:39:02 +01:00
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2006-09-21 14:19:17 +02:00
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use test;
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--disable_warnings
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drop table if exists t1, t2, t3;
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--enable_warnings
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--echo #
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--echo # See if queries that use both auto_increment and LAST_INSERT_ID()
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--echo # are replicated well
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--echo #
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--echo # We also check how the foreign_key_check variable is replicated
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--echo #
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2005-12-22 06:39:02 +01:00
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-- source include/master-slave.inc
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#should work for both SBR and RBR
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connection master;
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2006-02-08 16:47:46 +01:00
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create table t1(a int auto_increment, key(a));
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create table t2(b int auto_increment, c int, key(b));
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2005-12-22 06:39:02 +01:00
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insert into t1 values (1),(2),(3);
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insert into t1 values (null);
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insert into t2 values (null,last_insert_id());
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save_master_pos;
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connection slave;
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sync_with_master;
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2006-02-08 13:08:19 +01:00
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select * from t1 ORDER BY a;
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select * from t2 ORDER BY b;
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2005-12-22 06:39:02 +01:00
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connection master;
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#check if multi-line inserts,
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#which set last_insert_id to the first id inserted,
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#are replicated the same way
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drop table t1;
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drop table t2;
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--disable_warnings
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eval create table t1(a int auto_increment, key(a)) engine=$engine_type;
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eval create table t2(b int auto_increment, c int, key(b), foreign key(b) references t1(a)) engine=$engine_type;
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--enable_warnings
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SET FOREIGN_KEY_CHECKS=0;
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insert into t1 values (10);
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insert into t1 values (null),(null),(null);
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insert into t2 values (5,0);
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insert into t2 values (null,last_insert_id());
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SET FOREIGN_KEY_CHECKS=1;
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save_master_pos;
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connection slave;
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sync_with_master;
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select * from t1;
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select * from t2;
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connection master;
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2006-09-21 14:19:17 +02:00
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--echo #
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--echo # check if INSERT SELECT in auto_increment is well replicated (bug #490)
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--echo #
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2005-12-22 06:39:02 +01:00
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drop table t2;
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drop table t1;
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2006-02-08 16:47:46 +01:00
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create table t1(a int auto_increment, key(a));
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create table t2(b int auto_increment, c int, key(b));
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2005-12-22 06:39:02 +01:00
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insert into t1 values (10);
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insert into t1 values (null),(null),(null);
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insert into t2 values (5,0);
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2006-02-08 13:08:19 +01:00
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insert into t2 (c) select * from t1 ORDER BY a;
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select * from t2 ORDER BY b;
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2005-12-22 06:39:02 +01:00
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save_master_pos;
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connection slave;
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sync_with_master;
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2006-02-08 13:08:19 +01:00
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select * from t1 ORDER BY a;
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select * from t2 ORDER BY b;
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2005-12-22 06:39:02 +01:00
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connection master;
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drop table t1;
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drop table t2;
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save_master_pos;
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connection slave;
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sync_with_master;
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2006-09-21 14:19:17 +02:00
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--echo #
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--echo # Bug#8412: Error codes reported in binary log for CHARACTER SET,
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--echo # FOREIGN_KEY_CHECKS
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--echo #
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2005-12-22 06:39:02 +01:00
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connection master;
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SET TIMESTAMP=1000000000;
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CREATE TABLE t1 ( a INT UNIQUE );
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SET FOREIGN_KEY_CHECKS=0;
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2006-02-08 16:47:46 +01:00
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# Duplicate Key Errors
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2006-02-08 13:08:19 +01:00
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--error 1022, 1062
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2005-12-22 06:39:02 +01:00
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INSERT INTO t1 VALUES (1),(1);
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sync_slave_with_master;
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2006-08-01 08:49:43 +04:00
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connection master;
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drop table t1;
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sync_slave_with_master;
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2005-12-22 06:39:02 +01:00
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2006-09-21 14:19:17 +02:00
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--echo #
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--echo # Bug#14553: NULL in WHERE resets LAST_INSERT_ID
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--echo #
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2006-08-01 08:49:43 +04:00
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connection master;
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create table t1(a int auto_increment, key(a));
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create table t2(a int);
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insert into t1 (a) values (null);
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insert into t2 (a) select a from t1 where a is null;
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insert into t2 (a) select a from t1 where a is null;
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select * from t2;
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sync_slave_with_master;
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connection slave;
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select * from t2;
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connection master;
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drop table t1;
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drop table t2;
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2006-04-25 17:44:35 +02:00
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2006-09-21 14:19:17 +02:00
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--echo #
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--echo # End of 4.1 tests
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--echo #
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--echo #
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--echo # BUG#15728: LAST_INSERT_ID function inside a stored function returns 0
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--echo #
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--echo # The solution is not to reset last_insert_id on enter to sub-statement.
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--echo #
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2006-04-25 17:44:35 +02:00
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connection master;
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--disable_warnings
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drop function if exists bug15728;
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drop function if exists bug15728_insert;
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drop table if exists t1, t2;
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--enable_warnings
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create table t1 (
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id int not null auto_increment,
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last_id int,
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primary key (id)
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);
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create function bug15728() returns int(11)
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return last_insert_id();
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insert into t1 (last_id) values (0);
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insert into t1 (last_id) values (last_insert_id());
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insert into t1 (last_id) values (bug15728());
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# Check that nested call replicates too.
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create table t2 (
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id int not null auto_increment,
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last_id int,
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primary key (id)
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);
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delimiter |;
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create function bug15728_insert() returns int(11) modifies sql data
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begin
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insert into t2 (last_id) values (bug15728());
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return bug15728();
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end|
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create trigger t1_bi before insert on t1 for each row
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begin
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declare res int;
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select bug15728_insert() into res;
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set NEW.last_id = res;
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end|
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delimiter ;|
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insert into t1 (last_id) values (0);
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drop trigger t1_bi;
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# Check that nested call doesn't affect outer context.
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select last_insert_id();
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select bug15728_insert();
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select last_insert_id();
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insert into t1 (last_id) values (bug15728());
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# This should be exactly one greater than in the previous call.
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select last_insert_id();
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WL#3146 "less locking in auto_increment":
this is a cleanup patch for our current auto_increment handling:
new names for auto_increment variables in THD, new methods to manipulate them
(see sql_class.h), some move into handler::, causing less backup/restore
work when executing substatements.
This makes the logic hopefully clearer, less work is is needed in
mysql_insert().
By cleaning up, using different variables for different purposes (instead
of one for 3 things...), we fix those bugs, which someone may want to fix
in 5.0 too:
BUG#20339 "stored procedure using LAST_INSERT_ID() does not replicate
statement-based"
BUG#20341 "stored function inserting into one auto_increment puts bad
data in slave"
BUG#19243 "wrong LAST_INSERT_ID() after ON DUPLICATE KEY UPDATE"
(now if a row is updated, LAST_INSERT_ID() will return its id)
and re-fixes:
BUG#6880 "LAST_INSERT_ID() value changes during multi-row INSERT"
(already fixed differently by Ramil in 4.1)
Test of documented behaviour of mysql_insert_id() (there was no test).
The behaviour changes introduced are:
- LAST_INSERT_ID() now returns "the first autogenerated auto_increment value
successfully inserted", instead of "the first autogenerated auto_increment
value if any row was successfully inserted", see auto_increment.test.
Same for mysql_insert_id(), see mysql_client_test.c.
- LAST_INSERT_ID() returns the id of the updated row if ON DUPLICATE KEY
UPDATE, see auto_increment.test. Same for mysql_insert_id(), see
mysql_client_test.c.
- LAST_INSERT_ID() does not change if no autogenerated value was successfully
inserted (it used to then be 0), see auto_increment.test.
- if in INSERT SELECT no autogenerated value was successfully inserted,
mysql_insert_id() now returns the id of the last inserted row (it already
did this for INSERT VALUES), see mysql_client_test.c.
- if INSERT SELECT uses LAST_INSERT_ID(X), mysql_insert_id() now returns X
(it already did this for INSERT VALUES), see mysql_client_test.c.
- NDB now behaves like other engines wrt SET INSERT_ID: with INSERT IGNORE,
the id passed in SET INSERT_ID is re-used until a row succeeds; SET INSERT_ID
influences not only the first row now.
Additionally, when unlocking a table we check that the thread is not keeping
a next_insert_id (as the table is unlocked that id is potentially out-of-date);
forgetting about this next_insert_id is done in a new
handler::ha_release_auto_increment().
Finally we prepare for engines capable of reserving finite-length intervals
of auto_increment values: we store such intervals in THD. The next step
(to be done by the replication team in 5.1) is to read those intervals from
THD and actually store them in the statement-based binary log. NDB
will be a good engine to test that.
mysql-test/extra/binlog_tests/binlog.test:
Testing that if INSERT_ID is set to a value too big for the
column's type, the binlogged INSERT_ID is the truncated value
(important if slave has a column of a "wider" numeric type).
Testing binlogging of INSERT_ID with INSERT DELAYED, to be sure that
we binlog an INSERT_ID event only for the delayed rows which use one.
mysql-test/extra/rpl_tests/rpl_insert_id.test:
Testcase for BUG#20339 "stored procedure using
LAST_INSERT_ID() does not replicate statement-based".
Testcase for BUG#20341 "stored function inserting into one
auto_increment puts bad data in slave".
mysql-test/extra/rpl_tests/rpl_loaddata.test:
Test that LOAD DATA INFILE sets a value for a future LAST_INSERT_ID().
mysql-test/r/auto_increment.result:
behaviour change: when INSERT totally fails (not even succeeds
partially and then rolls back), don't change last_insert_id().
Behaviour change: LAST_INSERT_ID() is now the first successfully inserted,
autogenerated, id.
Behaviour change: if INSERT ON DUPLICATE KEY UPDATE, if the table has auto_increment
and a row is updated, then LAST_INSERT_ID() returns the id of this row.
mysql-test/r/binlog_row_binlog.result:
result update
mysql-test/r/binlog_stm_binlog.result:
result update
mysql-test/r/insert.result:
result update
mysql-test/r/rpl_insert_id.result:
result update
mysql-test/r/rpl_loaddata.result:
result update
mysql-test/r/rpl_ndb_auto_inc.result:
ndb's behaviour is now like other engines wrt SET INSERT_ID
in a multi-row INSERT:
- with INSERT IGNORE: the id passed in SET INSERT_ID is re-used until
a row succeeds.
- generally, SET INSERT_ID sets the first value and other values are
simply computed from this first value, instead of previously where
the 2nd and subsequent values where not influenced by SET INSERT_ID;
this good change is due to the removal of "thd->next_insert_id=0"
from ha_ndbcluster.
mysql-test/t/auto_increment.test:
A testcase of BUG#19243: if ON DUPLICATE KEY UPDATE updates a row,
LAST_INSERT_ID() now returns the id of the row.
Test of new behaviour of last_insert_id() when no autogenerated value was
inserted, or when only some autogenerated value (not the first of them) was
inserted.
mysql-test/t/insert.test:
testing INSERT IGNORE re-using generated values
sql/ha_federated.cc:
update for new variables.
sql/ha_ndbcluster.cc:
handler::auto_increment_column_changed not needed, equivalent to
(insert_id_for_cur_row > 0).
thd->next_insert_id=0 not needed anymore; it was used to force
handler::update_auto_increment() to call ha_ndbcluster::get_auto_increment()
for each row of a multi-row INSERT, now this happens naturally
because NDB says "I have reserved you *one* value" in get_auto_increment(),
so handler::update_auto_increment() calls again for next row.
sql/handler.cc:
More comments, use of new methods and variables. Hopes to be clearer
than current code.
thd->prev_insert_id not in THD anymore: it is managed locally by inserters
(like mysql_insert()).
THD::clear_next_insert_id is now equivalent to
handler::next_insert_id > 0.
get_auto_increment() reserves an interval of values from the engine,
uses this interval for next rows of the statement, until interval
is exhausted then it asks for another interval (of a bigger size
than the first one; size doubles until reaching 65535 then it stays constant).
If doing statement-based binlogging, intervals are remembered in a list
for storage in the binlog.
For "forced" insert_id values (SET INSERT_ID or replication slave),
forced_auto_inc_intervals is non-empty and the handler takes its intervals
from there, without calling get_auto_increment().
ha_release_auto_increment() resets the handler's auto_increment variables;
it calls release_auto_increment() which is handler-dependent and
serves to return to the engine any unused tail of the last used
interval.
If ending a statement, next_insert_id>0 means that autoinc values have been
generated or taken from the master's binlog (in a replication slave) so
we clear those values read from binlog, so that next top- or sub-
statement does not use them.
sql/handler.h:
handler::auto_increment_changed can be replaced by
(handler::insert_id_for_cur_row > 0).
THD::next_insert_id moves into handler (more natural, and prepares
for the day when we'll support a single statement inserting into
two tables - "multi-table INSERT" like we have UPDATE - will this
happen?).
This move makes the backup/restore of THD::next_insert_id when entering
a substatement unneeded, as each substatement has its own handler
objects.
sql/item_func.cc:
new names for variables.
For the setting of what mysql_insert_id() will return to the client,
LAST_INSERT_ID(X) used to simply pretend that the generated autoinc
value for the current row was X, but this led to having no reliable
way to know the really generated value, so we now have a bool:
thd->arg_of_last_insert_id_function which enables us to know that
LAST_INSERT_ID(X) was called (and then X can be found in
thd->first_successful_insert_id_in_prev_stmt).
sql/log.cc:
new variable names for insert_ids. Removing some unused variables in the slow
log.
sql/log_event.cc:
new variable names, comments. Preparing for when master's won't binlog
LAST_INSERT_ID if it was 0.
sql/set_var.cc:
new variable names.
The last change repeats how Bar fixed BUG#20392
"INSERT_ID session variable has weird value" in 5.0.
sql/sql_class.cc:
new variables for insert_id. In THD::cleanup_after_query() we fix
BUG#20339 "stored procedure using LAST_INSERT_ID() does not replicate
statement-based" (will one want to fix it in 5.0?). Many comments
about what stored functions do to auto_increment.
In reset|restore_sub_statement_state(), we need to backup less
auto_inc variables as some of them have moved to the handler;
we backup/restore those which are about the current top- or sub-
statement, *not* those about the statement-based binlog
(which evolve as the top- and sub-statement execute).
Because we split THD::last_insert_id into
THD::first_successful_insert_id_in_prev_stmt and
THD::auto_inc_intervals_for_binlog (among others), we fix
BUG#20341 "stored function inserting into one auto_increment
puts bad data in slave": indeed we can afford to not backup/restore
THD::auto_inc_intervals_for_binlog (which fixes the bug) while still
backing up / restoring THD::first_successful_insert_id_in_prev_stmt
(ensuring that the top-level LAST_INSERT_ID() is not affected by INSERTs
done by sub-statements, as is desirable and tested in rpl_insert_id.test).
sql/sql_class.h:
new variables and methods for auto_increment.
Some THD members move into handler (those which are really about
the table being inserted), some stay in THD (those which are
about what a future LAST_INSERT_ID() should return, or about
what should be stored into the statement-based binlog).
THD::next_insert_id moves to handler::.
THD::clear_next_insert_id removed (had become equivalent
to next_insert_id > 0).
THD::last_insert_id becomes four:
THD::first_successful_insert_id_in_cur_stmt,
THD::auto_inc_intervals_for_binlog,
handler::insert_id_for_cur_row,
THD::first_successful_insert_id_in_prev_stmt.
THD::current_insert_id becomes:
THD::first_successful_insert_id_in_prev_stmt_for_binlog
THD::prev_insert_id is removed, handler can just use
handler::insert_id_for_cur_row instead (which is more accurate:
for the first row, prev_insert_id was set before get_auto_increment
was called, so was 0, causing a call to
get_auto_increment() for the 2nd row if the 1st row fails;
here we don't need the call as insert_id_for_cur_row has
the value of the first row).
THD::last_insert_id_used becomes: stmt_depends_on_first_row_in_prev_stmt
THD::insert_id_used is removed (equivalent to
auto_inc_intervals_for_binlog non empty).
The interval returned by get_auto_increment() and currently being
consumed is handler::auto_inc_interval_for_cur_row.
Comments to explain each of them.
select_insert::last_insert_id becomes autoinc_value_of_last_inserted_row.
sql/sql_insert.cc:
the "id" variable is not changed for each row now; it used to compensate for
this contradiction:
- thd->last_insert_id supposed job was to keep the id of the first row
- but it was updated for every row
- so mysql_insert() made sure to catch its first value and restore it at the end of stmt.
Now THD keeps the first value in first_successful_insert_id_in_cur_stmt,
and value of the row in insert_id_for_cur_row. So "id" only serves to fill
mysql_insert_id(), as depending on some conditions, "id" must be different
values.
Prev_insert_id moves from THD to write_record().
We now set LAST_INSERT_ID() in ON DUPLICATE KEY UPDATE too (BUG#19243).
In an INSERT DELAYED, we still "reset auto-increment caching" but differently
(by calling ha_release_auto_increment()).
sql/sql_load.cc:
no need to fiddle with "id", THD maintains
THD::first_successful_insert_id_in_cur_stmt by itself and correctly now.
ha_release_auto_increment() is now (logically) called before we unlock
the table.
sql/sql_parse.cc:
update to new variable names.
Assertion that reset_thd_for_next_command() is not called for every
substatement of a routine (I'm not against it, but if we do this change,
statement-based binlogging needs some adjustments).
sql/sql_select.cc:
update for new variable names
sql/sql_table.cc:
next_insert_id not needed in mysql_alter_table(), THD manages.
sql/sql_update.cc:
update for new variable names.
Even though this is UPDATE, an insert id can be generated (by
LAST_INSERT_ID(X)) and should be recorded because mysql_insert_id() wants
to know about it.
sql/structs.h:
A class for "discrete" intervals (intervals of integer numbers with a certain
increment between them): Discrete_interval, and a class for a list of such
intervals: Discrete_intervals_list
tests/mysql_client_test.c:
tests of behaviour of mysql_insert_id(): there were no such tests, while in
our manual we document its behaviour. In comments you'll notice the behaviour
changes introduced (there are 5).
2006-07-09 17:52:19 +02:00
|
|
|
# BUG#20339 - stored procedure using LAST_INSERT_ID() does not
|
|
|
|
# replicate statement-based
|
|
|
|
--disable_warnings
|
|
|
|
drop procedure if exists foo;
|
|
|
|
--enable_warnings
|
|
|
|
delimiter |;
|
|
|
|
create procedure foo()
|
|
|
|
begin
|
|
|
|
declare res int;
|
|
|
|
insert into t2 (last_id) values (bug15728());
|
|
|
|
insert into t1 (last_id) values (bug15728());
|
|
|
|
end|
|
|
|
|
delimiter ;|
|
|
|
|
call foo();
|
|
|
|
|
|
|
|
select * from t1;
|
|
|
|
select * from t2;
|
2006-04-25 17:44:35 +02:00
|
|
|
save_master_pos;
|
|
|
|
connection slave;
|
|
|
|
sync_with_master;
|
|
|
|
select * from t1;
|
|
|
|
select * from t2;
|
|
|
|
connection master;
|
|
|
|
|
|
|
|
drop function bug15728;
|
|
|
|
drop function bug15728_insert;
|
fixes after merge. Updates to test's results.
We now reset the THD members related to auto_increment+binlog in
MYSQL_LOG::write(). This is better than in THD::cleanup_after_query(),
which was not able to distinguish between SELECT myfunc1(),myfunc2()
and INSERT INTO t SELECT myfunc1(),myfunc2() from a binlogging point
of view.
Rows_log_event::exec_event() now calls lex_start() instead of
mysql_init_query() because the latter now does too much (it resets
the binlog format).
mysql-test/extra/rpl_tests/rpl_insert_id.test:
fix after merge
mysql-test/mysql-test-run.pl:
-v does not bring useful information when running valgrind; I remove it;
if you think it's useful add it back.
mysql-test/r/binlog_stm_mix_innodb_myisam.result:
Position columns of SHOW BINLOG EVENTS are replaced by # (more robust
if the size of an event changes).
mysql-test/r/rpl_insert_id.result:
fix after merge
mysql-test/r/rpl_loaddata.result:
The binlog positions change, because one event disappeared; indeed there
was this in the binlog (in the current 5.1!):
SET INSERT_ID=2;
SET INSERT_ID=1;
SET TIMESTAMP=1152540671;
load data LOCAL INFILE '/tmp/SQL_LOAD_MB-1-2' INTO table t1;
Two INSERT_ID events, useless and a bug. Goes away afer cleaning up
auto_increment handling.
mysql-test/r/rpl_switch_stm_row_mixed.result:
INSERT_ID=5 appears, it's a consequence of having merged the fix
for BUG#20341
"stored function inserting into one auto_increment puts bad data in slave".
In mixed mode, if one substatement of a stored procedure requires row-based,
the entire procedure uses row-based (was already true for stored functions);
this is a consequence of not doing the resetting of binlog format inside
lock_tables() (which didn't work with how the slave thread executes
row-based binlog events).
mysql-test/t/rpl_switch_stm_row_mixed.test:
removing the multi-row delayed insert because in RBR the number of events
which it generates, is not repeatable (probably depends on how the delayed
thread groups rows, i.e. dependent on timing).
sql/ha_partition.cc:
update to new prototype
sql/ha_partition.h:
update to new prototype of the handler:: method.
sql/handler.cc:
after-merge fixes (manually merging part which was hard to merge in fmtool)
sql/log.cc:
When we write to the binary log, THD's parameters which influenced this
write are reset: stmt_depends_on_first_successful_insert_id_in_prev_stmt
and auto_inc_intervals_in_cur_stmt_for_binlog. This is so that future
writes are not influenced by those and can write their own values.
As a consequence, when we don't write to the binlog we do not reset.
This is to abide by the rule that in a complex statement (using triggers etc),
the first top- or substatement to generate auto_increment ids
wins their writing to the binlog (that writing may be done by the statement
itself or by the caller); so for example for
INSERT INTO t SELECT myfunc() where myfunc() inserts into auto_increment
and INSERT INTO t does not, myfunc() will fill
auto_inc_intervals_in_cur_stmt_for_binlog, which will not be reset when
myfunc() ends, then INSERT INTO t will write to the binlog and thus
write the preserved auto_inc_intervals_in_cur_stmt_for_binlog.
sql/log_event.cc:
mysql_init_query() does too much now to be called in Rows_log_event::exec_event
(it call mysql_reset_thd_for_next_command() which may switch
the binlog format now).
It's ok to call it in Table_map_log_event::exec_event() but its call must
be before setting the binlog format to "row".
sql/sql_base.cc:
Resetting the binlog format in lock_tables() was a bad idea of mine;
it causes problems in execution of row-based binlog events, where
the thread sets the binlog format by itself and does not want a next
lock_tables() to reset the binlog format.
It is also misleading, for a function named lock_tables(), to reset
the binlog format.
As a consequence of this change, in mixed binlogging mode, a routine
is logged either entirely statement-based or entirely row-based, we
don't switch in the middle (this was already true for prelocked routines,
now it's also true for stored procedures).
sql/sql_class.cc:
resetting of auto_increment variables used for binlogging is now done
when writing to the binary log, no need to do the resetting at the end
of the statement. It is also more correct this way; consider
SELECT myfunc1(),myfunc2();
where both functions insert into the same auto_increment column.
Binlogging is done in 2 events: "SELECT myfunc1()" and "SELECT myfunc2()".
So each of those needs to have, in binlog, the INSERT_ID which
it inserted. But as the 2 function calls are executed under prelocked mode,
the old code didn't reset auto_inc_intervals_in_cur_stmt_for_binlog
after the first SELECT was binlogged, and so the INSERT_ID of the first
SELECT was binlogged for the first SELECT and (wrong) also for the 2nd
SELECT event.
stmt_depends_on_first_... has the same logic.
sql/sql_class.h:
clearer comment
sql/sql_delete.cc:
unneeded #ifdef. As we temporarily change the binlog format to "statement"
before calling mysql_delete(), we must restore it afterwards.
sql/sql_insert.cc:
after-merge fixes.
No need to reset auto_inc_intervals_in_cur_stmt_for_binlog for every
row in the delayed insert system thread, because we already reset it
when writing to the binlog.
sql/sql_parse.cc:
unneeded #ifdef
2006-07-10 18:41:03 +02:00
|
|
|
drop table t1;
|
WL#3146 "less locking in auto_increment":
this is a cleanup patch for our current auto_increment handling:
new names for auto_increment variables in THD, new methods to manipulate them
(see sql_class.h), some move into handler::, causing less backup/restore
work when executing substatements.
This makes the logic hopefully clearer, less work is is needed in
mysql_insert().
By cleaning up, using different variables for different purposes (instead
of one for 3 things...), we fix those bugs, which someone may want to fix
in 5.0 too:
BUG#20339 "stored procedure using LAST_INSERT_ID() does not replicate
statement-based"
BUG#20341 "stored function inserting into one auto_increment puts bad
data in slave"
BUG#19243 "wrong LAST_INSERT_ID() after ON DUPLICATE KEY UPDATE"
(now if a row is updated, LAST_INSERT_ID() will return its id)
and re-fixes:
BUG#6880 "LAST_INSERT_ID() value changes during multi-row INSERT"
(already fixed differently by Ramil in 4.1)
Test of documented behaviour of mysql_insert_id() (there was no test).
The behaviour changes introduced are:
- LAST_INSERT_ID() now returns "the first autogenerated auto_increment value
successfully inserted", instead of "the first autogenerated auto_increment
value if any row was successfully inserted", see auto_increment.test.
Same for mysql_insert_id(), see mysql_client_test.c.
- LAST_INSERT_ID() returns the id of the updated row if ON DUPLICATE KEY
UPDATE, see auto_increment.test. Same for mysql_insert_id(), see
mysql_client_test.c.
- LAST_INSERT_ID() does not change if no autogenerated value was successfully
inserted (it used to then be 0), see auto_increment.test.
- if in INSERT SELECT no autogenerated value was successfully inserted,
mysql_insert_id() now returns the id of the last inserted row (it already
did this for INSERT VALUES), see mysql_client_test.c.
- if INSERT SELECT uses LAST_INSERT_ID(X), mysql_insert_id() now returns X
(it already did this for INSERT VALUES), see mysql_client_test.c.
- NDB now behaves like other engines wrt SET INSERT_ID: with INSERT IGNORE,
the id passed in SET INSERT_ID is re-used until a row succeeds; SET INSERT_ID
influences not only the first row now.
Additionally, when unlocking a table we check that the thread is not keeping
a next_insert_id (as the table is unlocked that id is potentially out-of-date);
forgetting about this next_insert_id is done in a new
handler::ha_release_auto_increment().
Finally we prepare for engines capable of reserving finite-length intervals
of auto_increment values: we store such intervals in THD. The next step
(to be done by the replication team in 5.1) is to read those intervals from
THD and actually store them in the statement-based binary log. NDB
will be a good engine to test that.
mysql-test/extra/binlog_tests/binlog.test:
Testing that if INSERT_ID is set to a value too big for the
column's type, the binlogged INSERT_ID is the truncated value
(important if slave has a column of a "wider" numeric type).
Testing binlogging of INSERT_ID with INSERT DELAYED, to be sure that
we binlog an INSERT_ID event only for the delayed rows which use one.
mysql-test/extra/rpl_tests/rpl_insert_id.test:
Testcase for BUG#20339 "stored procedure using
LAST_INSERT_ID() does not replicate statement-based".
Testcase for BUG#20341 "stored function inserting into one
auto_increment puts bad data in slave".
mysql-test/extra/rpl_tests/rpl_loaddata.test:
Test that LOAD DATA INFILE sets a value for a future LAST_INSERT_ID().
mysql-test/r/auto_increment.result:
behaviour change: when INSERT totally fails (not even succeeds
partially and then rolls back), don't change last_insert_id().
Behaviour change: LAST_INSERT_ID() is now the first successfully inserted,
autogenerated, id.
Behaviour change: if INSERT ON DUPLICATE KEY UPDATE, if the table has auto_increment
and a row is updated, then LAST_INSERT_ID() returns the id of this row.
mysql-test/r/binlog_row_binlog.result:
result update
mysql-test/r/binlog_stm_binlog.result:
result update
mysql-test/r/insert.result:
result update
mysql-test/r/rpl_insert_id.result:
result update
mysql-test/r/rpl_loaddata.result:
result update
mysql-test/r/rpl_ndb_auto_inc.result:
ndb's behaviour is now like other engines wrt SET INSERT_ID
in a multi-row INSERT:
- with INSERT IGNORE: the id passed in SET INSERT_ID is re-used until
a row succeeds.
- generally, SET INSERT_ID sets the first value and other values are
simply computed from this first value, instead of previously where
the 2nd and subsequent values where not influenced by SET INSERT_ID;
this good change is due to the removal of "thd->next_insert_id=0"
from ha_ndbcluster.
mysql-test/t/auto_increment.test:
A testcase of BUG#19243: if ON DUPLICATE KEY UPDATE updates a row,
LAST_INSERT_ID() now returns the id of the row.
Test of new behaviour of last_insert_id() when no autogenerated value was
inserted, or when only some autogenerated value (not the first of them) was
inserted.
mysql-test/t/insert.test:
testing INSERT IGNORE re-using generated values
sql/ha_federated.cc:
update for new variables.
sql/ha_ndbcluster.cc:
handler::auto_increment_column_changed not needed, equivalent to
(insert_id_for_cur_row > 0).
thd->next_insert_id=0 not needed anymore; it was used to force
handler::update_auto_increment() to call ha_ndbcluster::get_auto_increment()
for each row of a multi-row INSERT, now this happens naturally
because NDB says "I have reserved you *one* value" in get_auto_increment(),
so handler::update_auto_increment() calls again for next row.
sql/handler.cc:
More comments, use of new methods and variables. Hopes to be clearer
than current code.
thd->prev_insert_id not in THD anymore: it is managed locally by inserters
(like mysql_insert()).
THD::clear_next_insert_id is now equivalent to
handler::next_insert_id > 0.
get_auto_increment() reserves an interval of values from the engine,
uses this interval for next rows of the statement, until interval
is exhausted then it asks for another interval (of a bigger size
than the first one; size doubles until reaching 65535 then it stays constant).
If doing statement-based binlogging, intervals are remembered in a list
for storage in the binlog.
For "forced" insert_id values (SET INSERT_ID or replication slave),
forced_auto_inc_intervals is non-empty and the handler takes its intervals
from there, without calling get_auto_increment().
ha_release_auto_increment() resets the handler's auto_increment variables;
it calls release_auto_increment() which is handler-dependent and
serves to return to the engine any unused tail of the last used
interval.
If ending a statement, next_insert_id>0 means that autoinc values have been
generated or taken from the master's binlog (in a replication slave) so
we clear those values read from binlog, so that next top- or sub-
statement does not use them.
sql/handler.h:
handler::auto_increment_changed can be replaced by
(handler::insert_id_for_cur_row > 0).
THD::next_insert_id moves into handler (more natural, and prepares
for the day when we'll support a single statement inserting into
two tables - "multi-table INSERT" like we have UPDATE - will this
happen?).
This move makes the backup/restore of THD::next_insert_id when entering
a substatement unneeded, as each substatement has its own handler
objects.
sql/item_func.cc:
new names for variables.
For the setting of what mysql_insert_id() will return to the client,
LAST_INSERT_ID(X) used to simply pretend that the generated autoinc
value for the current row was X, but this led to having no reliable
way to know the really generated value, so we now have a bool:
thd->arg_of_last_insert_id_function which enables us to know that
LAST_INSERT_ID(X) was called (and then X can be found in
thd->first_successful_insert_id_in_prev_stmt).
sql/log.cc:
new variable names for insert_ids. Removing some unused variables in the slow
log.
sql/log_event.cc:
new variable names, comments. Preparing for when master's won't binlog
LAST_INSERT_ID if it was 0.
sql/set_var.cc:
new variable names.
The last change repeats how Bar fixed BUG#20392
"INSERT_ID session variable has weird value" in 5.0.
sql/sql_class.cc:
new variables for insert_id. In THD::cleanup_after_query() we fix
BUG#20339 "stored procedure using LAST_INSERT_ID() does not replicate
statement-based" (will one want to fix it in 5.0?). Many comments
about what stored functions do to auto_increment.
In reset|restore_sub_statement_state(), we need to backup less
auto_inc variables as some of them have moved to the handler;
we backup/restore those which are about the current top- or sub-
statement, *not* those about the statement-based binlog
(which evolve as the top- and sub-statement execute).
Because we split THD::last_insert_id into
THD::first_successful_insert_id_in_prev_stmt and
THD::auto_inc_intervals_for_binlog (among others), we fix
BUG#20341 "stored function inserting into one auto_increment
puts bad data in slave": indeed we can afford to not backup/restore
THD::auto_inc_intervals_for_binlog (which fixes the bug) while still
backing up / restoring THD::first_successful_insert_id_in_prev_stmt
(ensuring that the top-level LAST_INSERT_ID() is not affected by INSERTs
done by sub-statements, as is desirable and tested in rpl_insert_id.test).
sql/sql_class.h:
new variables and methods for auto_increment.
Some THD members move into handler (those which are really about
the table being inserted), some stay in THD (those which are
about what a future LAST_INSERT_ID() should return, or about
what should be stored into the statement-based binlog).
THD::next_insert_id moves to handler::.
THD::clear_next_insert_id removed (had become equivalent
to next_insert_id > 0).
THD::last_insert_id becomes four:
THD::first_successful_insert_id_in_cur_stmt,
THD::auto_inc_intervals_for_binlog,
handler::insert_id_for_cur_row,
THD::first_successful_insert_id_in_prev_stmt.
THD::current_insert_id becomes:
THD::first_successful_insert_id_in_prev_stmt_for_binlog
THD::prev_insert_id is removed, handler can just use
handler::insert_id_for_cur_row instead (which is more accurate:
for the first row, prev_insert_id was set before get_auto_increment
was called, so was 0, causing a call to
get_auto_increment() for the 2nd row if the 1st row fails;
here we don't need the call as insert_id_for_cur_row has
the value of the first row).
THD::last_insert_id_used becomes: stmt_depends_on_first_row_in_prev_stmt
THD::insert_id_used is removed (equivalent to
auto_inc_intervals_for_binlog non empty).
The interval returned by get_auto_increment() and currently being
consumed is handler::auto_inc_interval_for_cur_row.
Comments to explain each of them.
select_insert::last_insert_id becomes autoinc_value_of_last_inserted_row.
sql/sql_insert.cc:
the "id" variable is not changed for each row now; it used to compensate for
this contradiction:
- thd->last_insert_id supposed job was to keep the id of the first row
- but it was updated for every row
- so mysql_insert() made sure to catch its first value and restore it at the end of stmt.
Now THD keeps the first value in first_successful_insert_id_in_cur_stmt,
and value of the row in insert_id_for_cur_row. So "id" only serves to fill
mysql_insert_id(), as depending on some conditions, "id" must be different
values.
Prev_insert_id moves from THD to write_record().
We now set LAST_INSERT_ID() in ON DUPLICATE KEY UPDATE too (BUG#19243).
In an INSERT DELAYED, we still "reset auto-increment caching" but differently
(by calling ha_release_auto_increment()).
sql/sql_load.cc:
no need to fiddle with "id", THD maintains
THD::first_successful_insert_id_in_cur_stmt by itself and correctly now.
ha_release_auto_increment() is now (logically) called before we unlock
the table.
sql/sql_parse.cc:
update to new variable names.
Assertion that reset_thd_for_next_command() is not called for every
substatement of a routine (I'm not against it, but if we do this change,
statement-based binlogging needs some adjustments).
sql/sql_select.cc:
update for new variable names
sql/sql_table.cc:
next_insert_id not needed in mysql_alter_table(), THD manages.
sql/sql_update.cc:
update for new variable names.
Even though this is UPDATE, an insert id can be generated (by
LAST_INSERT_ID(X)) and should be recorded because mysql_insert_id() wants
to know about it.
sql/structs.h:
A class for "discrete" intervals (intervals of integer numbers with a certain
increment between them): Discrete_interval, and a class for a list of such
intervals: Discrete_intervals_list
tests/mysql_client_test.c:
tests of behaviour of mysql_insert_id(): there were no such tests, while in
our manual we document its behaviour. In comments you'll notice the behaviour
changes introduced (there are 5).
2006-07-09 17:52:19 +02:00
|
|
|
drop procedure foo;
|
2006-04-25 17:44:35 +02:00
|
|
|
|
2006-07-09 18:45:16 +02:00
|
|
|
# test of BUG#20188 REPLACE or ON DUPLICATE KEY UPDATE in
|
|
|
|
# auto_increment breaks binlog
|
|
|
|
|
|
|
|
create table t1 (n int primary key auto_increment not null,
|
|
|
|
b int, unique(b));
|
|
|
|
|
|
|
|
# First, test that we do not call restore_auto_increment() too early
|
|
|
|
# in write_record():
|
|
|
|
set sql_log_bin=0;
|
|
|
|
insert into t1 values(null,100);
|
|
|
|
replace into t1 values(null,50),(null,100),(null,150);
|
|
|
|
select * from t1 order by n;
|
|
|
|
truncate table t1;
|
|
|
|
set sql_log_bin=1;
|
|
|
|
|
|
|
|
insert into t1 values(null,100);
|
|
|
|
select * from t1 order by n;
|
|
|
|
sync_slave_with_master;
|
|
|
|
# make slave's table autoinc counter bigger
|
|
|
|
insert into t1 values(null,200),(null,300);
|
|
|
|
delete from t1 where b <> 100;
|
|
|
|
# check that slave's table content is identical to master
|
|
|
|
select * from t1 order by n;
|
|
|
|
# only the auto_inc counter differs.
|
|
|
|
|
|
|
|
connection master;
|
|
|
|
replace into t1 values(null,100),(null,350);
|
|
|
|
select * from t1 order by n;
|
|
|
|
sync_slave_with_master;
|
|
|
|
select * from t1 order by n;
|
|
|
|
|
|
|
|
# Same test as for REPLACE, but for ON DUPLICATE KEY UPDATE
|
|
|
|
|
|
|
|
# We first check that if we update a row using a value larger than the
|
|
|
|
# table's counter, the counter for next row is bigger than the
|
|
|
|
# after-value of the updated row.
|
|
|
|
connection master;
|
|
|
|
insert into t1 values (NULL,400),(3,500),(NULL,600) on duplicate key UPDATE n=1000;
|
|
|
|
select * from t1 order by n;
|
|
|
|
sync_slave_with_master;
|
|
|
|
select * from t1 order by n;
|
|
|
|
|
|
|
|
# and now test for the bug:
|
|
|
|
connection master;
|
|
|
|
drop table t1;
|
|
|
|
create table t1 (n int primary key auto_increment not null,
|
|
|
|
b int, unique(b));
|
|
|
|
insert into t1 values(null,100);
|
|
|
|
select * from t1 order by n;
|
|
|
|
sync_slave_with_master;
|
|
|
|
insert into t1 values(null,200),(null,300);
|
|
|
|
delete from t1 where b <> 100;
|
|
|
|
select * from t1 order by n;
|
|
|
|
|
|
|
|
connection master;
|
|
|
|
insert into t1 values(null,100),(null,350) on duplicate key update n=2;
|
|
|
|
select * from t1 order by n;
|
|
|
|
sync_slave_with_master;
|
|
|
|
select * from t1 order by n;
|
|
|
|
|
|
|
|
connection master;
|
|
|
|
drop table t1;
|
2006-09-21 14:19:17 +02:00
|
|
|
sync_slave_with_master;
|
2006-07-09 18:45:16 +02:00
|
|
|
|
2006-10-02 15:26:01 +04:00
|
|
|
|
|
|
|
#
|
|
|
|
# BUG#20339: stored procedure using LAST_INSERT_ID() does not
|
|
|
|
# replicate statement-based.
|
|
|
|
#
|
|
|
|
# There is another version of the test for bug#20339 above that is
|
|
|
|
# actually originates in 5.1, and this is the version that is merged
|
|
|
|
# from 5.0.
|
|
|
|
#
|
|
|
|
connection master;
|
|
|
|
|
|
|
|
--disable_warnings
|
|
|
|
DROP PROCEDURE IF EXISTS p1;
|
|
|
|
DROP TABLE IF EXISTS t1, t2;
|
|
|
|
--enable_warnings
|
|
|
|
|
|
|
|
# Reset result of LAST_INSERT_ID().
|
|
|
|
SELECT LAST_INSERT_ID(0);
|
|
|
|
|
|
|
|
CREATE TABLE t1 (
|
|
|
|
id INT NOT NULL DEFAULT 0,
|
|
|
|
last_id INT,
|
|
|
|
PRIMARY KEY (id)
|
|
|
|
);
|
|
|
|
|
|
|
|
CREATE TABLE t2 (
|
|
|
|
id INT NOT NULL AUTO_INCREMENT,
|
|
|
|
last_id INT,
|
|
|
|
PRIMARY KEY (id)
|
|
|
|
);
|
|
|
|
|
|
|
|
delimiter |;
|
|
|
|
CREATE PROCEDURE p1()
|
|
|
|
BEGIN
|
|
|
|
INSERT INTO t2 (last_id) VALUES (LAST_INSERT_ID());
|
|
|
|
INSERT INTO t1 (last_id) VALUES (LAST_INSERT_ID());
|
|
|
|
END|
|
|
|
|
delimiter ;|
|
|
|
|
|
|
|
|
CALL p1();
|
|
|
|
SELECT * FROM t1;
|
|
|
|
SELECT * FROM t2;
|
|
|
|
|
|
|
|
sync_slave_with_master;
|
|
|
|
SELECT * FROM t1;
|
|
|
|
SELECT * FROM t2;
|
|
|
|
|
|
|
|
connection master;
|
|
|
|
|
|
|
|
DROP PROCEDURE p1;
|
|
|
|
DROP TABLE t1, t2;
|
|
|
|
|
|
|
|
|
|
|
|
#
|
|
|
|
# BUG#21726: Incorrect result with multiple invocations of
|
|
|
|
# LAST_INSERT_ID
|
|
|
|
#
|
|
|
|
--disable_warnings
|
|
|
|
DROP PROCEDURE IF EXISTS p1;
|
|
|
|
DROP FUNCTION IF EXISTS f1;
|
|
|
|
DROP FUNCTION IF EXISTS f2;
|
2006-10-03 17:07:30 +04:00
|
|
|
DROP FUNCTION IF EXISTS f3;
|
2006-10-02 15:26:01 +04:00
|
|
|
DROP TABLE IF EXISTS t1, t2;
|
|
|
|
--enable_warnings
|
|
|
|
|
|
|
|
CREATE TABLE t1 (
|
|
|
|
i INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
|
|
|
|
j INT DEFAULT 0
|
|
|
|
);
|
|
|
|
CREATE TABLE t2 (i INT);
|
|
|
|
|
|
|
|
delimiter |;
|
|
|
|
CREATE PROCEDURE p1()
|
|
|
|
BEGIN
|
|
|
|
INSERT INTO t1 (i) VALUES (NULL);
|
|
|
|
INSERT INTO t2 (i) VALUES (LAST_INSERT_ID());
|
|
|
|
INSERT INTO t1 (i) VALUES (NULL), (NULL);
|
|
|
|
INSERT INTO t2 (i) VALUES (LAST_INSERT_ID());
|
|
|
|
END |
|
|
|
|
|
|
|
|
CREATE FUNCTION f1() RETURNS INT MODIFIES SQL DATA
|
|
|
|
BEGIN
|
|
|
|
INSERT INTO t1 (i) VALUES (NULL);
|
|
|
|
INSERT INTO t2 (i) VALUES (LAST_INSERT_ID());
|
|
|
|
INSERT INTO t1 (i) VALUES (NULL), (NULL);
|
|
|
|
INSERT INTO t2 (i) VALUES (LAST_INSERT_ID());
|
|
|
|
RETURN 0;
|
|
|
|
END |
|
|
|
|
|
|
|
|
CREATE FUNCTION f2() RETURNS INT NOT DETERMINISTIC
|
|
|
|
RETURN LAST_INSERT_ID() |
|
2006-10-03 17:07:30 +04:00
|
|
|
|
|
|
|
CREATE FUNCTION f3() RETURNS INT MODIFIES SQL DATA
|
|
|
|
BEGIN
|
|
|
|
INSERT INTO t2 (i) VALUES (LAST_INSERT_ID());
|
|
|
|
RETURN 0;
|
|
|
|
END |
|
2006-10-02 15:26:01 +04:00
|
|
|
delimiter ;|
|
|
|
|
|
|
|
|
INSERT INTO t1 VALUES (NULL, -1);
|
|
|
|
CALL p1();
|
|
|
|
SELECT f1();
|
|
|
|
INSERT INTO t1 VALUES (NULL, f2()), (NULL, LAST_INSERT_ID()),
|
|
|
|
(NULL, LAST_INSERT_ID()), (NULL, f2()), (NULL, f2());
|
|
|
|
INSERT INTO t1 VALUES (NULL, f2());
|
|
|
|
INSERT INTO t1 VALUES (NULL, LAST_INSERT_ID()), (NULL, LAST_INSERT_ID(5)),
|
|
|
|
(NULL, @@LAST_INSERT_ID);
|
|
|
|
# Test replication of substitution "IS NULL" -> "= LAST_INSERT_ID".
|
|
|
|
INSERT INTO t1 VALUES (NULL, 0), (NULL, LAST_INSERT_ID());
|
|
|
|
UPDATE t1 SET j= -1 WHERE i IS NULL;
|
|
|
|
|
2006-10-03 17:07:30 +04:00
|
|
|
# Test statement-based replication of function calls.
|
|
|
|
INSERT INTO t1 (i) VALUES (NULL);
|
|
|
|
|
|
|
|
connection master1;
|
|
|
|
INSERT INTO t1 (i) VALUES (NULL);
|
|
|
|
|
|
|
|
connection master;
|
|
|
|
SELECT f3();
|
|
|
|
|
2006-10-02 15:26:01 +04:00
|
|
|
SELECT * FROM t1;
|
|
|
|
SELECT * FROM t2;
|
|
|
|
|
|
|
|
sync_slave_with_master;
|
|
|
|
SELECT * FROM t1;
|
|
|
|
SELECT * FROM t2;
|
|
|
|
|
|
|
|
connection master;
|
|
|
|
DROP PROCEDURE p1;
|
|
|
|
DROP FUNCTION f1;
|
|
|
|
DROP FUNCTION f2;
|
2006-10-03 17:07:30 +04:00
|
|
|
DROP FUNCTION f3;
|
2006-10-02 15:26:01 +04:00
|
|
|
DROP TABLE t1, t2;
|
|
|
|
|
|
|
|
|
|
|
|
sync_slave_with_master;
|
|
|
|
|
2006-09-21 14:19:17 +02:00
|
|
|
--echo #
|
|
|
|
--echo # End of 5.0 tests
|
|
|
|
--echo #
|
2006-05-31 11:18:58 +03:00
|
|
|
|
2006-10-02 15:26:01 +04:00
|
|
|
# Tests in this file are tightly bound together. Recreate t2.
|
|
|
|
connection master;
|
|
|
|
create table t2 (
|
|
|
|
id int not null auto_increment,
|
|
|
|
last_id int,
|
|
|
|
primary key (id)
|
|
|
|
);
|
|
|
|
|
|
|
|
|
WL#3146 "less locking in auto_increment":
this is a cleanup patch for our current auto_increment handling:
new names for auto_increment variables in THD, new methods to manipulate them
(see sql_class.h), some move into handler::, causing less backup/restore
work when executing substatements.
This makes the logic hopefully clearer, less work is is needed in
mysql_insert().
By cleaning up, using different variables for different purposes (instead
of one for 3 things...), we fix those bugs, which someone may want to fix
in 5.0 too:
BUG#20339 "stored procedure using LAST_INSERT_ID() does not replicate
statement-based"
BUG#20341 "stored function inserting into one auto_increment puts bad
data in slave"
BUG#19243 "wrong LAST_INSERT_ID() after ON DUPLICATE KEY UPDATE"
(now if a row is updated, LAST_INSERT_ID() will return its id)
and re-fixes:
BUG#6880 "LAST_INSERT_ID() value changes during multi-row INSERT"
(already fixed differently by Ramil in 4.1)
Test of documented behaviour of mysql_insert_id() (there was no test).
The behaviour changes introduced are:
- LAST_INSERT_ID() now returns "the first autogenerated auto_increment value
successfully inserted", instead of "the first autogenerated auto_increment
value if any row was successfully inserted", see auto_increment.test.
Same for mysql_insert_id(), see mysql_client_test.c.
- LAST_INSERT_ID() returns the id of the updated row if ON DUPLICATE KEY
UPDATE, see auto_increment.test. Same for mysql_insert_id(), see
mysql_client_test.c.
- LAST_INSERT_ID() does not change if no autogenerated value was successfully
inserted (it used to then be 0), see auto_increment.test.
- if in INSERT SELECT no autogenerated value was successfully inserted,
mysql_insert_id() now returns the id of the last inserted row (it already
did this for INSERT VALUES), see mysql_client_test.c.
- if INSERT SELECT uses LAST_INSERT_ID(X), mysql_insert_id() now returns X
(it already did this for INSERT VALUES), see mysql_client_test.c.
- NDB now behaves like other engines wrt SET INSERT_ID: with INSERT IGNORE,
the id passed in SET INSERT_ID is re-used until a row succeeds; SET INSERT_ID
influences not only the first row now.
Additionally, when unlocking a table we check that the thread is not keeping
a next_insert_id (as the table is unlocked that id is potentially out-of-date);
forgetting about this next_insert_id is done in a new
handler::ha_release_auto_increment().
Finally we prepare for engines capable of reserving finite-length intervals
of auto_increment values: we store such intervals in THD. The next step
(to be done by the replication team in 5.1) is to read those intervals from
THD and actually store them in the statement-based binary log. NDB
will be a good engine to test that.
mysql-test/extra/binlog_tests/binlog.test:
Testing that if INSERT_ID is set to a value too big for the
column's type, the binlogged INSERT_ID is the truncated value
(important if slave has a column of a "wider" numeric type).
Testing binlogging of INSERT_ID with INSERT DELAYED, to be sure that
we binlog an INSERT_ID event only for the delayed rows which use one.
mysql-test/extra/rpl_tests/rpl_insert_id.test:
Testcase for BUG#20339 "stored procedure using
LAST_INSERT_ID() does not replicate statement-based".
Testcase for BUG#20341 "stored function inserting into one
auto_increment puts bad data in slave".
mysql-test/extra/rpl_tests/rpl_loaddata.test:
Test that LOAD DATA INFILE sets a value for a future LAST_INSERT_ID().
mysql-test/r/auto_increment.result:
behaviour change: when INSERT totally fails (not even succeeds
partially and then rolls back), don't change last_insert_id().
Behaviour change: LAST_INSERT_ID() is now the first successfully inserted,
autogenerated, id.
Behaviour change: if INSERT ON DUPLICATE KEY UPDATE, if the table has auto_increment
and a row is updated, then LAST_INSERT_ID() returns the id of this row.
mysql-test/r/binlog_row_binlog.result:
result update
mysql-test/r/binlog_stm_binlog.result:
result update
mysql-test/r/insert.result:
result update
mysql-test/r/rpl_insert_id.result:
result update
mysql-test/r/rpl_loaddata.result:
result update
mysql-test/r/rpl_ndb_auto_inc.result:
ndb's behaviour is now like other engines wrt SET INSERT_ID
in a multi-row INSERT:
- with INSERT IGNORE: the id passed in SET INSERT_ID is re-used until
a row succeeds.
- generally, SET INSERT_ID sets the first value and other values are
simply computed from this first value, instead of previously where
the 2nd and subsequent values where not influenced by SET INSERT_ID;
this good change is due to the removal of "thd->next_insert_id=0"
from ha_ndbcluster.
mysql-test/t/auto_increment.test:
A testcase of BUG#19243: if ON DUPLICATE KEY UPDATE updates a row,
LAST_INSERT_ID() now returns the id of the row.
Test of new behaviour of last_insert_id() when no autogenerated value was
inserted, or when only some autogenerated value (not the first of them) was
inserted.
mysql-test/t/insert.test:
testing INSERT IGNORE re-using generated values
sql/ha_federated.cc:
update for new variables.
sql/ha_ndbcluster.cc:
handler::auto_increment_column_changed not needed, equivalent to
(insert_id_for_cur_row > 0).
thd->next_insert_id=0 not needed anymore; it was used to force
handler::update_auto_increment() to call ha_ndbcluster::get_auto_increment()
for each row of a multi-row INSERT, now this happens naturally
because NDB says "I have reserved you *one* value" in get_auto_increment(),
so handler::update_auto_increment() calls again for next row.
sql/handler.cc:
More comments, use of new methods and variables. Hopes to be clearer
than current code.
thd->prev_insert_id not in THD anymore: it is managed locally by inserters
(like mysql_insert()).
THD::clear_next_insert_id is now equivalent to
handler::next_insert_id > 0.
get_auto_increment() reserves an interval of values from the engine,
uses this interval for next rows of the statement, until interval
is exhausted then it asks for another interval (of a bigger size
than the first one; size doubles until reaching 65535 then it stays constant).
If doing statement-based binlogging, intervals are remembered in a list
for storage in the binlog.
For "forced" insert_id values (SET INSERT_ID or replication slave),
forced_auto_inc_intervals is non-empty and the handler takes its intervals
from there, without calling get_auto_increment().
ha_release_auto_increment() resets the handler's auto_increment variables;
it calls release_auto_increment() which is handler-dependent and
serves to return to the engine any unused tail of the last used
interval.
If ending a statement, next_insert_id>0 means that autoinc values have been
generated or taken from the master's binlog (in a replication slave) so
we clear those values read from binlog, so that next top- or sub-
statement does not use them.
sql/handler.h:
handler::auto_increment_changed can be replaced by
(handler::insert_id_for_cur_row > 0).
THD::next_insert_id moves into handler (more natural, and prepares
for the day when we'll support a single statement inserting into
two tables - "multi-table INSERT" like we have UPDATE - will this
happen?).
This move makes the backup/restore of THD::next_insert_id when entering
a substatement unneeded, as each substatement has its own handler
objects.
sql/item_func.cc:
new names for variables.
For the setting of what mysql_insert_id() will return to the client,
LAST_INSERT_ID(X) used to simply pretend that the generated autoinc
value for the current row was X, but this led to having no reliable
way to know the really generated value, so we now have a bool:
thd->arg_of_last_insert_id_function which enables us to know that
LAST_INSERT_ID(X) was called (and then X can be found in
thd->first_successful_insert_id_in_prev_stmt).
sql/log.cc:
new variable names for insert_ids. Removing some unused variables in the slow
log.
sql/log_event.cc:
new variable names, comments. Preparing for when master's won't binlog
LAST_INSERT_ID if it was 0.
sql/set_var.cc:
new variable names.
The last change repeats how Bar fixed BUG#20392
"INSERT_ID session variable has weird value" in 5.0.
sql/sql_class.cc:
new variables for insert_id. In THD::cleanup_after_query() we fix
BUG#20339 "stored procedure using LAST_INSERT_ID() does not replicate
statement-based" (will one want to fix it in 5.0?). Many comments
about what stored functions do to auto_increment.
In reset|restore_sub_statement_state(), we need to backup less
auto_inc variables as some of them have moved to the handler;
we backup/restore those which are about the current top- or sub-
statement, *not* those about the statement-based binlog
(which evolve as the top- and sub-statement execute).
Because we split THD::last_insert_id into
THD::first_successful_insert_id_in_prev_stmt and
THD::auto_inc_intervals_for_binlog (among others), we fix
BUG#20341 "stored function inserting into one auto_increment
puts bad data in slave": indeed we can afford to not backup/restore
THD::auto_inc_intervals_for_binlog (which fixes the bug) while still
backing up / restoring THD::first_successful_insert_id_in_prev_stmt
(ensuring that the top-level LAST_INSERT_ID() is not affected by INSERTs
done by sub-statements, as is desirable and tested in rpl_insert_id.test).
sql/sql_class.h:
new variables and methods for auto_increment.
Some THD members move into handler (those which are really about
the table being inserted), some stay in THD (those which are
about what a future LAST_INSERT_ID() should return, or about
what should be stored into the statement-based binlog).
THD::next_insert_id moves to handler::.
THD::clear_next_insert_id removed (had become equivalent
to next_insert_id > 0).
THD::last_insert_id becomes four:
THD::first_successful_insert_id_in_cur_stmt,
THD::auto_inc_intervals_for_binlog,
handler::insert_id_for_cur_row,
THD::first_successful_insert_id_in_prev_stmt.
THD::current_insert_id becomes:
THD::first_successful_insert_id_in_prev_stmt_for_binlog
THD::prev_insert_id is removed, handler can just use
handler::insert_id_for_cur_row instead (which is more accurate:
for the first row, prev_insert_id was set before get_auto_increment
was called, so was 0, causing a call to
get_auto_increment() for the 2nd row if the 1st row fails;
here we don't need the call as insert_id_for_cur_row has
the value of the first row).
THD::last_insert_id_used becomes: stmt_depends_on_first_row_in_prev_stmt
THD::insert_id_used is removed (equivalent to
auto_inc_intervals_for_binlog non empty).
The interval returned by get_auto_increment() and currently being
consumed is handler::auto_inc_interval_for_cur_row.
Comments to explain each of them.
select_insert::last_insert_id becomes autoinc_value_of_last_inserted_row.
sql/sql_insert.cc:
the "id" variable is not changed for each row now; it used to compensate for
this contradiction:
- thd->last_insert_id supposed job was to keep the id of the first row
- but it was updated for every row
- so mysql_insert() made sure to catch its first value and restore it at the end of stmt.
Now THD keeps the first value in first_successful_insert_id_in_cur_stmt,
and value of the row in insert_id_for_cur_row. So "id" only serves to fill
mysql_insert_id(), as depending on some conditions, "id" must be different
values.
Prev_insert_id moves from THD to write_record().
We now set LAST_INSERT_ID() in ON DUPLICATE KEY UPDATE too (BUG#19243).
In an INSERT DELAYED, we still "reset auto-increment caching" but differently
(by calling ha_release_auto_increment()).
sql/sql_load.cc:
no need to fiddle with "id", THD maintains
THD::first_successful_insert_id_in_cur_stmt by itself and correctly now.
ha_release_auto_increment() is now (logically) called before we unlock
the table.
sql/sql_parse.cc:
update to new variable names.
Assertion that reset_thd_for_next_command() is not called for every
substatement of a routine (I'm not against it, but if we do this change,
statement-based binlogging needs some adjustments).
sql/sql_select.cc:
update for new variable names
sql/sql_table.cc:
next_insert_id not needed in mysql_alter_table(), THD manages.
sql/sql_update.cc:
update for new variable names.
Even though this is UPDATE, an insert id can be generated (by
LAST_INSERT_ID(X)) and should be recorded because mysql_insert_id() wants
to know about it.
sql/structs.h:
A class for "discrete" intervals (intervals of integer numbers with a certain
increment between them): Discrete_interval, and a class for a list of such
intervals: Discrete_intervals_list
tests/mysql_client_test.c:
tests of behaviour of mysql_insert_id(): there were no such tests, while in
our manual we document its behaviour. In comments you'll notice the behaviour
changes introduced (there are 5).
2006-07-09 17:52:19 +02:00
|
|
|
# Test for BUG#20341 "stored function inserting into one
|
|
|
|
# auto_increment puts bad data in slave"
|
|
|
|
|
2006-09-21 14:19:17 +02:00
|
|
|
connection master;
|
WL#3146 "less locking in auto_increment":
this is a cleanup patch for our current auto_increment handling:
new names for auto_increment variables in THD, new methods to manipulate them
(see sql_class.h), some move into handler::, causing less backup/restore
work when executing substatements.
This makes the logic hopefully clearer, less work is is needed in
mysql_insert().
By cleaning up, using different variables for different purposes (instead
of one for 3 things...), we fix those bugs, which someone may want to fix
in 5.0 too:
BUG#20339 "stored procedure using LAST_INSERT_ID() does not replicate
statement-based"
BUG#20341 "stored function inserting into one auto_increment puts bad
data in slave"
BUG#19243 "wrong LAST_INSERT_ID() after ON DUPLICATE KEY UPDATE"
(now if a row is updated, LAST_INSERT_ID() will return its id)
and re-fixes:
BUG#6880 "LAST_INSERT_ID() value changes during multi-row INSERT"
(already fixed differently by Ramil in 4.1)
Test of documented behaviour of mysql_insert_id() (there was no test).
The behaviour changes introduced are:
- LAST_INSERT_ID() now returns "the first autogenerated auto_increment value
successfully inserted", instead of "the first autogenerated auto_increment
value if any row was successfully inserted", see auto_increment.test.
Same for mysql_insert_id(), see mysql_client_test.c.
- LAST_INSERT_ID() returns the id of the updated row if ON DUPLICATE KEY
UPDATE, see auto_increment.test. Same for mysql_insert_id(), see
mysql_client_test.c.
- LAST_INSERT_ID() does not change if no autogenerated value was successfully
inserted (it used to then be 0), see auto_increment.test.
- if in INSERT SELECT no autogenerated value was successfully inserted,
mysql_insert_id() now returns the id of the last inserted row (it already
did this for INSERT VALUES), see mysql_client_test.c.
- if INSERT SELECT uses LAST_INSERT_ID(X), mysql_insert_id() now returns X
(it already did this for INSERT VALUES), see mysql_client_test.c.
- NDB now behaves like other engines wrt SET INSERT_ID: with INSERT IGNORE,
the id passed in SET INSERT_ID is re-used until a row succeeds; SET INSERT_ID
influences not only the first row now.
Additionally, when unlocking a table we check that the thread is not keeping
a next_insert_id (as the table is unlocked that id is potentially out-of-date);
forgetting about this next_insert_id is done in a new
handler::ha_release_auto_increment().
Finally we prepare for engines capable of reserving finite-length intervals
of auto_increment values: we store such intervals in THD. The next step
(to be done by the replication team in 5.1) is to read those intervals from
THD and actually store them in the statement-based binary log. NDB
will be a good engine to test that.
mysql-test/extra/binlog_tests/binlog.test:
Testing that if INSERT_ID is set to a value too big for the
column's type, the binlogged INSERT_ID is the truncated value
(important if slave has a column of a "wider" numeric type).
Testing binlogging of INSERT_ID with INSERT DELAYED, to be sure that
we binlog an INSERT_ID event only for the delayed rows which use one.
mysql-test/extra/rpl_tests/rpl_insert_id.test:
Testcase for BUG#20339 "stored procedure using
LAST_INSERT_ID() does not replicate statement-based".
Testcase for BUG#20341 "stored function inserting into one
auto_increment puts bad data in slave".
mysql-test/extra/rpl_tests/rpl_loaddata.test:
Test that LOAD DATA INFILE sets a value for a future LAST_INSERT_ID().
mysql-test/r/auto_increment.result:
behaviour change: when INSERT totally fails (not even succeeds
partially and then rolls back), don't change last_insert_id().
Behaviour change: LAST_INSERT_ID() is now the first successfully inserted,
autogenerated, id.
Behaviour change: if INSERT ON DUPLICATE KEY UPDATE, if the table has auto_increment
and a row is updated, then LAST_INSERT_ID() returns the id of this row.
mysql-test/r/binlog_row_binlog.result:
result update
mysql-test/r/binlog_stm_binlog.result:
result update
mysql-test/r/insert.result:
result update
mysql-test/r/rpl_insert_id.result:
result update
mysql-test/r/rpl_loaddata.result:
result update
mysql-test/r/rpl_ndb_auto_inc.result:
ndb's behaviour is now like other engines wrt SET INSERT_ID
in a multi-row INSERT:
- with INSERT IGNORE: the id passed in SET INSERT_ID is re-used until
a row succeeds.
- generally, SET INSERT_ID sets the first value and other values are
simply computed from this first value, instead of previously where
the 2nd and subsequent values where not influenced by SET INSERT_ID;
this good change is due to the removal of "thd->next_insert_id=0"
from ha_ndbcluster.
mysql-test/t/auto_increment.test:
A testcase of BUG#19243: if ON DUPLICATE KEY UPDATE updates a row,
LAST_INSERT_ID() now returns the id of the row.
Test of new behaviour of last_insert_id() when no autogenerated value was
inserted, or when only some autogenerated value (not the first of them) was
inserted.
mysql-test/t/insert.test:
testing INSERT IGNORE re-using generated values
sql/ha_federated.cc:
update for new variables.
sql/ha_ndbcluster.cc:
handler::auto_increment_column_changed not needed, equivalent to
(insert_id_for_cur_row > 0).
thd->next_insert_id=0 not needed anymore; it was used to force
handler::update_auto_increment() to call ha_ndbcluster::get_auto_increment()
for each row of a multi-row INSERT, now this happens naturally
because NDB says "I have reserved you *one* value" in get_auto_increment(),
so handler::update_auto_increment() calls again for next row.
sql/handler.cc:
More comments, use of new methods and variables. Hopes to be clearer
than current code.
thd->prev_insert_id not in THD anymore: it is managed locally by inserters
(like mysql_insert()).
THD::clear_next_insert_id is now equivalent to
handler::next_insert_id > 0.
get_auto_increment() reserves an interval of values from the engine,
uses this interval for next rows of the statement, until interval
is exhausted then it asks for another interval (of a bigger size
than the first one; size doubles until reaching 65535 then it stays constant).
If doing statement-based binlogging, intervals are remembered in a list
for storage in the binlog.
For "forced" insert_id values (SET INSERT_ID or replication slave),
forced_auto_inc_intervals is non-empty and the handler takes its intervals
from there, without calling get_auto_increment().
ha_release_auto_increment() resets the handler's auto_increment variables;
it calls release_auto_increment() which is handler-dependent and
serves to return to the engine any unused tail of the last used
interval.
If ending a statement, next_insert_id>0 means that autoinc values have been
generated or taken from the master's binlog (in a replication slave) so
we clear those values read from binlog, so that next top- or sub-
statement does not use them.
sql/handler.h:
handler::auto_increment_changed can be replaced by
(handler::insert_id_for_cur_row > 0).
THD::next_insert_id moves into handler (more natural, and prepares
for the day when we'll support a single statement inserting into
two tables - "multi-table INSERT" like we have UPDATE - will this
happen?).
This move makes the backup/restore of THD::next_insert_id when entering
a substatement unneeded, as each substatement has its own handler
objects.
sql/item_func.cc:
new names for variables.
For the setting of what mysql_insert_id() will return to the client,
LAST_INSERT_ID(X) used to simply pretend that the generated autoinc
value for the current row was X, but this led to having no reliable
way to know the really generated value, so we now have a bool:
thd->arg_of_last_insert_id_function which enables us to know that
LAST_INSERT_ID(X) was called (and then X can be found in
thd->first_successful_insert_id_in_prev_stmt).
sql/log.cc:
new variable names for insert_ids. Removing some unused variables in the slow
log.
sql/log_event.cc:
new variable names, comments. Preparing for when master's won't binlog
LAST_INSERT_ID if it was 0.
sql/set_var.cc:
new variable names.
The last change repeats how Bar fixed BUG#20392
"INSERT_ID session variable has weird value" in 5.0.
sql/sql_class.cc:
new variables for insert_id. In THD::cleanup_after_query() we fix
BUG#20339 "stored procedure using LAST_INSERT_ID() does not replicate
statement-based" (will one want to fix it in 5.0?). Many comments
about what stored functions do to auto_increment.
In reset|restore_sub_statement_state(), we need to backup less
auto_inc variables as some of them have moved to the handler;
we backup/restore those which are about the current top- or sub-
statement, *not* those about the statement-based binlog
(which evolve as the top- and sub-statement execute).
Because we split THD::last_insert_id into
THD::first_successful_insert_id_in_prev_stmt and
THD::auto_inc_intervals_for_binlog (among others), we fix
BUG#20341 "stored function inserting into one auto_increment
puts bad data in slave": indeed we can afford to not backup/restore
THD::auto_inc_intervals_for_binlog (which fixes the bug) while still
backing up / restoring THD::first_successful_insert_id_in_prev_stmt
(ensuring that the top-level LAST_INSERT_ID() is not affected by INSERTs
done by sub-statements, as is desirable and tested in rpl_insert_id.test).
sql/sql_class.h:
new variables and methods for auto_increment.
Some THD members move into handler (those which are really about
the table being inserted), some stay in THD (those which are
about what a future LAST_INSERT_ID() should return, or about
what should be stored into the statement-based binlog).
THD::next_insert_id moves to handler::.
THD::clear_next_insert_id removed (had become equivalent
to next_insert_id > 0).
THD::last_insert_id becomes four:
THD::first_successful_insert_id_in_cur_stmt,
THD::auto_inc_intervals_for_binlog,
handler::insert_id_for_cur_row,
THD::first_successful_insert_id_in_prev_stmt.
THD::current_insert_id becomes:
THD::first_successful_insert_id_in_prev_stmt_for_binlog
THD::prev_insert_id is removed, handler can just use
handler::insert_id_for_cur_row instead (which is more accurate:
for the first row, prev_insert_id was set before get_auto_increment
was called, so was 0, causing a call to
get_auto_increment() for the 2nd row if the 1st row fails;
here we don't need the call as insert_id_for_cur_row has
the value of the first row).
THD::last_insert_id_used becomes: stmt_depends_on_first_row_in_prev_stmt
THD::insert_id_used is removed (equivalent to
auto_inc_intervals_for_binlog non empty).
The interval returned by get_auto_increment() and currently being
consumed is handler::auto_inc_interval_for_cur_row.
Comments to explain each of them.
select_insert::last_insert_id becomes autoinc_value_of_last_inserted_row.
sql/sql_insert.cc:
the "id" variable is not changed for each row now; it used to compensate for
this contradiction:
- thd->last_insert_id supposed job was to keep the id of the first row
- but it was updated for every row
- so mysql_insert() made sure to catch its first value and restore it at the end of stmt.
Now THD keeps the first value in first_successful_insert_id_in_cur_stmt,
and value of the row in insert_id_for_cur_row. So "id" only serves to fill
mysql_insert_id(), as depending on some conditions, "id" must be different
values.
Prev_insert_id moves from THD to write_record().
We now set LAST_INSERT_ID() in ON DUPLICATE KEY UPDATE too (BUG#19243).
In an INSERT DELAYED, we still "reset auto-increment caching" but differently
(by calling ha_release_auto_increment()).
sql/sql_load.cc:
no need to fiddle with "id", THD maintains
THD::first_successful_insert_id_in_cur_stmt by itself and correctly now.
ha_release_auto_increment() is now (logically) called before we unlock
the table.
sql/sql_parse.cc:
update to new variable names.
Assertion that reset_thd_for_next_command() is not called for every
substatement of a routine (I'm not against it, but if we do this change,
statement-based binlogging needs some adjustments).
sql/sql_select.cc:
update for new variable names
sql/sql_table.cc:
next_insert_id not needed in mysql_alter_table(), THD manages.
sql/sql_update.cc:
update for new variable names.
Even though this is UPDATE, an insert id can be generated (by
LAST_INSERT_ID(X)) and should be recorded because mysql_insert_id() wants
to know about it.
sql/structs.h:
A class for "discrete" intervals (intervals of integer numbers with a certain
increment between them): Discrete_interval, and a class for a list of such
intervals: Discrete_intervals_list
tests/mysql_client_test.c:
tests of behaviour of mysql_insert_id(): there were no such tests, while in
our manual we document its behaviour. In comments you'll notice the behaviour
changes introduced (there are 5).
2006-07-09 17:52:19 +02:00
|
|
|
truncate table t2;
|
|
|
|
create table t1 (id tinyint primary key); # no auto_increment
|
|
|
|
|
|
|
|
delimiter |;
|
|
|
|
create function insid() returns int
|
|
|
|
begin
|
|
|
|
insert into t2 (last_id) values (0);
|
|
|
|
return 0;
|
|
|
|
end|
|
|
|
|
delimiter ;|
|
|
|
|
set sql_log_bin=0;
|
|
|
|
insert into t2 (id) values(1),(2),(3);
|
|
|
|
delete from t2;
|
|
|
|
set sql_log_bin=1;
|
|
|
|
#inside SELECT, then inside INSERT
|
|
|
|
select insid();
|
|
|
|
set sql_log_bin=0;
|
|
|
|
insert into t2 (id) values(5),(6),(7);
|
|
|
|
delete from t2 where id>=5;
|
|
|
|
set sql_log_bin=1;
|
|
|
|
insert into t1 select insid();
|
|
|
|
select * from t1;
|
|
|
|
select * from t2;
|
|
|
|
|
|
|
|
sync_slave_with_master;
|
|
|
|
select * from t1;
|
|
|
|
select * from t2;
|
|
|
|
|
|
|
|
connection master;
|
Fixing problems I identified in my auto_increment work pushed in July
(as part of the auto_increment cleanup of WL#3146; let's not be
sad, that monster push still removed serious bugs):
one problem with INSERT DELAYED (unexpected interval releases),
one with stored functions (wrong auto_inc binlogging).
These bugs were not released.
mysql-test/extra/binlog_tests/binlog_insert_delayed.test:
more tests of binlogging of INSERT DELAYED: with multi-row INSERTs.
I identified why sleeps are needed to get a repeatable row-based
binlogged: because without sleeps rows sometimes get groupped
and so generate different row based events.
mysql-test/extra/rpl_tests/rpl_foreign_key.test:
don't forget to drop tables on slave too, otherwise it leaves
an orphan innodb table leading to rpl_insert_id failing sometimes
(like in pushbuild "sapsrv2 -max").
mysql-test/extra/rpl_tests/rpl_insert_id.test:
testing that if some statement does not update any row, it does
not pollute the auto_inc binlog variables of the next statement;
the test has to use stored procedures because with plain statements,
mysql_reset_thd_for_next_command() does the resetting (and thus
there is no problem); mysql_reset_thd_for_next_command() is not
called inside routines.
mysql-test/r/binlog_row_binlog.result:
result additions
mysql-test/r/binlog_statement_insert_delayed.result:
result additions
mysql-test/r/binlog_stm_binlog.result:
result additions
mysql-test/r/rpl_insert_id.result:
result additions
mysql-test/r/rpl_loaddata.result:
With the change to log.cc reverted, the result changes and is better:
the change to log.cc had caused some INSERT_ID events to disappear
though they were necessary (but testsuite could not catch that because
it's single-threaded).
mysql-test/r/rpl_ndb_insert_ignore.result:
NDB is now like other engines regarding INSERT IGNORE: autoincrement
values which caused a duplicate key are re-used for next row, not lost.
rpl_ndb_insert_ignore.result is now identical to rpl_insert_ignore.result.
sql/log.cc:
LOAD DATA INFILE is binlogged as several events, and the last of them must
have the auto_inc id. So it's wrong to reset the auto_inc id after every
binlog write (because then it's lost after the first event of LOAD
DATA INFILE and so missing for the last one)/
Another problem: MYSQL_LOG::write() is not always called (for example
if no row was updated), so we were missing reset in some cases.
sql/sp_head.cc:
SELECT func1(),func2() generates two binlog events, so needs to
clear auto_increment binlog variables after each binlog event
(it would be more natural to clear them in the log write code,
but LOAD DATA INFILE would suffer from this see the cset comment
for log.cc). Without the clearing, the problem is:
> exec func1()
>> call cleanup_after_query() (which does not clear our vars here)
>> binlog SELECT func1()
<
> exec func2()
and so SELECT func2() is binlogged with the auto_inc of SELECT func1().
sql/sql_class.cc:
after every statement we should clear auto_inc variables used for
binlogging, except if this was a function/trigger (in which case
it may be "INSERT SELECT func()", where the cleanup_after_query()
executed in func() should not reset the auto_inc binlog variables
as they'll be necessary when binlogging the INSERT SELECT later).
sql/sql_insert.cc:
- as INSERT DELAYED uses the same TABLE object as the delayed_insert
system thread, we should not call ha_release_auto_increment()
from INSERT DELAYED (and btw it's logical as we reserve nothing
as we don't perform the insert). Calling the function caused us to
release values being used by the delayed_insert thread.
So I do the call only if this is a non-DELAYED INSERT.
- Assuming two INSERT DELAYED which get grouped by the delayed_insert
thread, the second may use values reserved by the first, which is ok
per se, but is a problem in statement-based binlogging:
the 2nd INSERT gets binlogged with the "interval start" value
of the first INSERT (=> duplicate error in slave).
- no reason to ha_release_auto_increment() after every inserted row
in INSERT SELECT; more efficient to do it only when the statement ends
sql/sql_parse.cc:
a comment
2006-09-12 15:42:13 +02:00
|
|
|
drop table t1;
|
WL#3146 "less locking in auto_increment":
this is a cleanup patch for our current auto_increment handling:
new names for auto_increment variables in THD, new methods to manipulate them
(see sql_class.h), some move into handler::, causing less backup/restore
work when executing substatements.
This makes the logic hopefully clearer, less work is is needed in
mysql_insert().
By cleaning up, using different variables for different purposes (instead
of one for 3 things...), we fix those bugs, which someone may want to fix
in 5.0 too:
BUG#20339 "stored procedure using LAST_INSERT_ID() does not replicate
statement-based"
BUG#20341 "stored function inserting into one auto_increment puts bad
data in slave"
BUG#19243 "wrong LAST_INSERT_ID() after ON DUPLICATE KEY UPDATE"
(now if a row is updated, LAST_INSERT_ID() will return its id)
and re-fixes:
BUG#6880 "LAST_INSERT_ID() value changes during multi-row INSERT"
(already fixed differently by Ramil in 4.1)
Test of documented behaviour of mysql_insert_id() (there was no test).
The behaviour changes introduced are:
- LAST_INSERT_ID() now returns "the first autogenerated auto_increment value
successfully inserted", instead of "the first autogenerated auto_increment
value if any row was successfully inserted", see auto_increment.test.
Same for mysql_insert_id(), see mysql_client_test.c.
- LAST_INSERT_ID() returns the id of the updated row if ON DUPLICATE KEY
UPDATE, see auto_increment.test. Same for mysql_insert_id(), see
mysql_client_test.c.
- LAST_INSERT_ID() does not change if no autogenerated value was successfully
inserted (it used to then be 0), see auto_increment.test.
- if in INSERT SELECT no autogenerated value was successfully inserted,
mysql_insert_id() now returns the id of the last inserted row (it already
did this for INSERT VALUES), see mysql_client_test.c.
- if INSERT SELECT uses LAST_INSERT_ID(X), mysql_insert_id() now returns X
(it already did this for INSERT VALUES), see mysql_client_test.c.
- NDB now behaves like other engines wrt SET INSERT_ID: with INSERT IGNORE,
the id passed in SET INSERT_ID is re-used until a row succeeds; SET INSERT_ID
influences not only the first row now.
Additionally, when unlocking a table we check that the thread is not keeping
a next_insert_id (as the table is unlocked that id is potentially out-of-date);
forgetting about this next_insert_id is done in a new
handler::ha_release_auto_increment().
Finally we prepare for engines capable of reserving finite-length intervals
of auto_increment values: we store such intervals in THD. The next step
(to be done by the replication team in 5.1) is to read those intervals from
THD and actually store them in the statement-based binary log. NDB
will be a good engine to test that.
mysql-test/extra/binlog_tests/binlog.test:
Testing that if INSERT_ID is set to a value too big for the
column's type, the binlogged INSERT_ID is the truncated value
(important if slave has a column of a "wider" numeric type).
Testing binlogging of INSERT_ID with INSERT DELAYED, to be sure that
we binlog an INSERT_ID event only for the delayed rows which use one.
mysql-test/extra/rpl_tests/rpl_insert_id.test:
Testcase for BUG#20339 "stored procedure using
LAST_INSERT_ID() does not replicate statement-based".
Testcase for BUG#20341 "stored function inserting into one
auto_increment puts bad data in slave".
mysql-test/extra/rpl_tests/rpl_loaddata.test:
Test that LOAD DATA INFILE sets a value for a future LAST_INSERT_ID().
mysql-test/r/auto_increment.result:
behaviour change: when INSERT totally fails (not even succeeds
partially and then rolls back), don't change last_insert_id().
Behaviour change: LAST_INSERT_ID() is now the first successfully inserted,
autogenerated, id.
Behaviour change: if INSERT ON DUPLICATE KEY UPDATE, if the table has auto_increment
and a row is updated, then LAST_INSERT_ID() returns the id of this row.
mysql-test/r/binlog_row_binlog.result:
result update
mysql-test/r/binlog_stm_binlog.result:
result update
mysql-test/r/insert.result:
result update
mysql-test/r/rpl_insert_id.result:
result update
mysql-test/r/rpl_loaddata.result:
result update
mysql-test/r/rpl_ndb_auto_inc.result:
ndb's behaviour is now like other engines wrt SET INSERT_ID
in a multi-row INSERT:
- with INSERT IGNORE: the id passed in SET INSERT_ID is re-used until
a row succeeds.
- generally, SET INSERT_ID sets the first value and other values are
simply computed from this first value, instead of previously where
the 2nd and subsequent values where not influenced by SET INSERT_ID;
this good change is due to the removal of "thd->next_insert_id=0"
from ha_ndbcluster.
mysql-test/t/auto_increment.test:
A testcase of BUG#19243: if ON DUPLICATE KEY UPDATE updates a row,
LAST_INSERT_ID() now returns the id of the row.
Test of new behaviour of last_insert_id() when no autogenerated value was
inserted, or when only some autogenerated value (not the first of them) was
inserted.
mysql-test/t/insert.test:
testing INSERT IGNORE re-using generated values
sql/ha_federated.cc:
update for new variables.
sql/ha_ndbcluster.cc:
handler::auto_increment_column_changed not needed, equivalent to
(insert_id_for_cur_row > 0).
thd->next_insert_id=0 not needed anymore; it was used to force
handler::update_auto_increment() to call ha_ndbcluster::get_auto_increment()
for each row of a multi-row INSERT, now this happens naturally
because NDB says "I have reserved you *one* value" in get_auto_increment(),
so handler::update_auto_increment() calls again for next row.
sql/handler.cc:
More comments, use of new methods and variables. Hopes to be clearer
than current code.
thd->prev_insert_id not in THD anymore: it is managed locally by inserters
(like mysql_insert()).
THD::clear_next_insert_id is now equivalent to
handler::next_insert_id > 0.
get_auto_increment() reserves an interval of values from the engine,
uses this interval for next rows of the statement, until interval
is exhausted then it asks for another interval (of a bigger size
than the first one; size doubles until reaching 65535 then it stays constant).
If doing statement-based binlogging, intervals are remembered in a list
for storage in the binlog.
For "forced" insert_id values (SET INSERT_ID or replication slave),
forced_auto_inc_intervals is non-empty and the handler takes its intervals
from there, without calling get_auto_increment().
ha_release_auto_increment() resets the handler's auto_increment variables;
it calls release_auto_increment() which is handler-dependent and
serves to return to the engine any unused tail of the last used
interval.
If ending a statement, next_insert_id>0 means that autoinc values have been
generated or taken from the master's binlog (in a replication slave) so
we clear those values read from binlog, so that next top- or sub-
statement does not use them.
sql/handler.h:
handler::auto_increment_changed can be replaced by
(handler::insert_id_for_cur_row > 0).
THD::next_insert_id moves into handler (more natural, and prepares
for the day when we'll support a single statement inserting into
two tables - "multi-table INSERT" like we have UPDATE - will this
happen?).
This move makes the backup/restore of THD::next_insert_id when entering
a substatement unneeded, as each substatement has its own handler
objects.
sql/item_func.cc:
new names for variables.
For the setting of what mysql_insert_id() will return to the client,
LAST_INSERT_ID(X) used to simply pretend that the generated autoinc
value for the current row was X, but this led to having no reliable
way to know the really generated value, so we now have a bool:
thd->arg_of_last_insert_id_function which enables us to know that
LAST_INSERT_ID(X) was called (and then X can be found in
thd->first_successful_insert_id_in_prev_stmt).
sql/log.cc:
new variable names for insert_ids. Removing some unused variables in the slow
log.
sql/log_event.cc:
new variable names, comments. Preparing for when master's won't binlog
LAST_INSERT_ID if it was 0.
sql/set_var.cc:
new variable names.
The last change repeats how Bar fixed BUG#20392
"INSERT_ID session variable has weird value" in 5.0.
sql/sql_class.cc:
new variables for insert_id. In THD::cleanup_after_query() we fix
BUG#20339 "stored procedure using LAST_INSERT_ID() does not replicate
statement-based" (will one want to fix it in 5.0?). Many comments
about what stored functions do to auto_increment.
In reset|restore_sub_statement_state(), we need to backup less
auto_inc variables as some of them have moved to the handler;
we backup/restore those which are about the current top- or sub-
statement, *not* those about the statement-based binlog
(which evolve as the top- and sub-statement execute).
Because we split THD::last_insert_id into
THD::first_successful_insert_id_in_prev_stmt and
THD::auto_inc_intervals_for_binlog (among others), we fix
BUG#20341 "stored function inserting into one auto_increment
puts bad data in slave": indeed we can afford to not backup/restore
THD::auto_inc_intervals_for_binlog (which fixes the bug) while still
backing up / restoring THD::first_successful_insert_id_in_prev_stmt
(ensuring that the top-level LAST_INSERT_ID() is not affected by INSERTs
done by sub-statements, as is desirable and tested in rpl_insert_id.test).
sql/sql_class.h:
new variables and methods for auto_increment.
Some THD members move into handler (those which are really about
the table being inserted), some stay in THD (those which are
about what a future LAST_INSERT_ID() should return, or about
what should be stored into the statement-based binlog).
THD::next_insert_id moves to handler::.
THD::clear_next_insert_id removed (had become equivalent
to next_insert_id > 0).
THD::last_insert_id becomes four:
THD::first_successful_insert_id_in_cur_stmt,
THD::auto_inc_intervals_for_binlog,
handler::insert_id_for_cur_row,
THD::first_successful_insert_id_in_prev_stmt.
THD::current_insert_id becomes:
THD::first_successful_insert_id_in_prev_stmt_for_binlog
THD::prev_insert_id is removed, handler can just use
handler::insert_id_for_cur_row instead (which is more accurate:
for the first row, prev_insert_id was set before get_auto_increment
was called, so was 0, causing a call to
get_auto_increment() for the 2nd row if the 1st row fails;
here we don't need the call as insert_id_for_cur_row has
the value of the first row).
THD::last_insert_id_used becomes: stmt_depends_on_first_row_in_prev_stmt
THD::insert_id_used is removed (equivalent to
auto_inc_intervals_for_binlog non empty).
The interval returned by get_auto_increment() and currently being
consumed is handler::auto_inc_interval_for_cur_row.
Comments to explain each of them.
select_insert::last_insert_id becomes autoinc_value_of_last_inserted_row.
sql/sql_insert.cc:
the "id" variable is not changed for each row now; it used to compensate for
this contradiction:
- thd->last_insert_id supposed job was to keep the id of the first row
- but it was updated for every row
- so mysql_insert() made sure to catch its first value and restore it at the end of stmt.
Now THD keeps the first value in first_successful_insert_id_in_cur_stmt,
and value of the row in insert_id_for_cur_row. So "id" only serves to fill
mysql_insert_id(), as depending on some conditions, "id" must be different
values.
Prev_insert_id moves from THD to write_record().
We now set LAST_INSERT_ID() in ON DUPLICATE KEY UPDATE too (BUG#19243).
In an INSERT DELAYED, we still "reset auto-increment caching" but differently
(by calling ha_release_auto_increment()).
sql/sql_load.cc:
no need to fiddle with "id", THD maintains
THD::first_successful_insert_id_in_cur_stmt by itself and correctly now.
ha_release_auto_increment() is now (logically) called before we unlock
the table.
sql/sql_parse.cc:
update to new variable names.
Assertion that reset_thd_for_next_command() is not called for every
substatement of a routine (I'm not against it, but if we do this change,
statement-based binlogging needs some adjustments).
sql/sql_select.cc:
update for new variable names
sql/sql_table.cc:
next_insert_id not needed in mysql_alter_table(), THD manages.
sql/sql_update.cc:
update for new variable names.
Even though this is UPDATE, an insert id can be generated (by
LAST_INSERT_ID(X)) and should be recorded because mysql_insert_id() wants
to know about it.
sql/structs.h:
A class for "discrete" intervals (intervals of integer numbers with a certain
increment between them): Discrete_interval, and a class for a list of such
intervals: Discrete_intervals_list
tests/mysql_client_test.c:
tests of behaviour of mysql_insert_id(): there were no such tests, while in
our manual we document its behaviour. In comments you'll notice the behaviour
changes introduced (there are 5).
2006-07-09 17:52:19 +02:00
|
|
|
drop function insid;
|
|
|
|
|
Fixing problems I identified in my auto_increment work pushed in July
(as part of the auto_increment cleanup of WL#3146; let's not be
sad, that monster push still removed serious bugs):
one problem with INSERT DELAYED (unexpected interval releases),
one with stored functions (wrong auto_inc binlogging).
These bugs were not released.
mysql-test/extra/binlog_tests/binlog_insert_delayed.test:
more tests of binlogging of INSERT DELAYED: with multi-row INSERTs.
I identified why sleeps are needed to get a repeatable row-based
binlogged: because without sleeps rows sometimes get groupped
and so generate different row based events.
mysql-test/extra/rpl_tests/rpl_foreign_key.test:
don't forget to drop tables on slave too, otherwise it leaves
an orphan innodb table leading to rpl_insert_id failing sometimes
(like in pushbuild "sapsrv2 -max").
mysql-test/extra/rpl_tests/rpl_insert_id.test:
testing that if some statement does not update any row, it does
not pollute the auto_inc binlog variables of the next statement;
the test has to use stored procedures because with plain statements,
mysql_reset_thd_for_next_command() does the resetting (and thus
there is no problem); mysql_reset_thd_for_next_command() is not
called inside routines.
mysql-test/r/binlog_row_binlog.result:
result additions
mysql-test/r/binlog_statement_insert_delayed.result:
result additions
mysql-test/r/binlog_stm_binlog.result:
result additions
mysql-test/r/rpl_insert_id.result:
result additions
mysql-test/r/rpl_loaddata.result:
With the change to log.cc reverted, the result changes and is better:
the change to log.cc had caused some INSERT_ID events to disappear
though they were necessary (but testsuite could not catch that because
it's single-threaded).
mysql-test/r/rpl_ndb_insert_ignore.result:
NDB is now like other engines regarding INSERT IGNORE: autoincrement
values which caused a duplicate key are re-used for next row, not lost.
rpl_ndb_insert_ignore.result is now identical to rpl_insert_ignore.result.
sql/log.cc:
LOAD DATA INFILE is binlogged as several events, and the last of them must
have the auto_inc id. So it's wrong to reset the auto_inc id after every
binlog write (because then it's lost after the first event of LOAD
DATA INFILE and so missing for the last one)/
Another problem: MYSQL_LOG::write() is not always called (for example
if no row was updated), so we were missing reset in some cases.
sql/sp_head.cc:
SELECT func1(),func2() generates two binlog events, so needs to
clear auto_increment binlog variables after each binlog event
(it would be more natural to clear them in the log write code,
but LOAD DATA INFILE would suffer from this see the cset comment
for log.cc). Without the clearing, the problem is:
> exec func1()
>> call cleanup_after_query() (which does not clear our vars here)
>> binlog SELECT func1()
<
> exec func2()
and so SELECT func2() is binlogged with the auto_inc of SELECT func1().
sql/sql_class.cc:
after every statement we should clear auto_inc variables used for
binlogging, except if this was a function/trigger (in which case
it may be "INSERT SELECT func()", where the cleanup_after_query()
executed in func() should not reset the auto_inc binlog variables
as they'll be necessary when binlogging the INSERT SELECT later).
sql/sql_insert.cc:
- as INSERT DELAYED uses the same TABLE object as the delayed_insert
system thread, we should not call ha_release_auto_increment()
from INSERT DELAYED (and btw it's logical as we reserve nothing
as we don't perform the insert). Calling the function caused us to
release values being used by the delayed_insert thread.
So I do the call only if this is a non-DELAYED INSERT.
- Assuming two INSERT DELAYED which get grouped by the delayed_insert
thread, the second may use values reserved by the first, which is ok
per se, but is a problem in statement-based binlogging:
the 2nd INSERT gets binlogged with the "interval start" value
of the first INSERT (=> duplicate error in slave).
- no reason to ha_release_auto_increment() after every inserted row
in INSERT SELECT; more efficient to do it only when the statement ends
sql/sql_parse.cc:
a comment
2006-09-12 15:42:13 +02:00
|
|
|
truncate table t2;
|
|
|
|
create table t1 (n int primary key auto_increment not null,
|
|
|
|
b int, unique(b));
|
|
|
|
delimiter |;
|
|
|
|
create procedure foo()
|
|
|
|
begin
|
|
|
|
insert into t1 values(null,10);
|
|
|
|
insert ignore into t1 values(null,10);
|
|
|
|
insert ignore into t1 values(null,10);
|
|
|
|
insert into t2 values(null,3);
|
|
|
|
end|
|
|
|
|
delimiter ;|
|
|
|
|
call foo();
|
|
|
|
select * from t1;
|
|
|
|
select * from t2;
|
|
|
|
|
2006-05-31 11:18:58 +03:00
|
|
|
sync_slave_with_master;
|
Fixing problems I identified in my auto_increment work pushed in July
(as part of the auto_increment cleanup of WL#3146; let's not be
sad, that monster push still removed serious bugs):
one problem with INSERT DELAYED (unexpected interval releases),
one with stored functions (wrong auto_inc binlogging).
These bugs were not released.
mysql-test/extra/binlog_tests/binlog_insert_delayed.test:
more tests of binlogging of INSERT DELAYED: with multi-row INSERTs.
I identified why sleeps are needed to get a repeatable row-based
binlogged: because without sleeps rows sometimes get groupped
and so generate different row based events.
mysql-test/extra/rpl_tests/rpl_foreign_key.test:
don't forget to drop tables on slave too, otherwise it leaves
an orphan innodb table leading to rpl_insert_id failing sometimes
(like in pushbuild "sapsrv2 -max").
mysql-test/extra/rpl_tests/rpl_insert_id.test:
testing that if some statement does not update any row, it does
not pollute the auto_inc binlog variables of the next statement;
the test has to use stored procedures because with plain statements,
mysql_reset_thd_for_next_command() does the resetting (and thus
there is no problem); mysql_reset_thd_for_next_command() is not
called inside routines.
mysql-test/r/binlog_row_binlog.result:
result additions
mysql-test/r/binlog_statement_insert_delayed.result:
result additions
mysql-test/r/binlog_stm_binlog.result:
result additions
mysql-test/r/rpl_insert_id.result:
result additions
mysql-test/r/rpl_loaddata.result:
With the change to log.cc reverted, the result changes and is better:
the change to log.cc had caused some INSERT_ID events to disappear
though they were necessary (but testsuite could not catch that because
it's single-threaded).
mysql-test/r/rpl_ndb_insert_ignore.result:
NDB is now like other engines regarding INSERT IGNORE: autoincrement
values which caused a duplicate key are re-used for next row, not lost.
rpl_ndb_insert_ignore.result is now identical to rpl_insert_ignore.result.
sql/log.cc:
LOAD DATA INFILE is binlogged as several events, and the last of them must
have the auto_inc id. So it's wrong to reset the auto_inc id after every
binlog write (because then it's lost after the first event of LOAD
DATA INFILE and so missing for the last one)/
Another problem: MYSQL_LOG::write() is not always called (for example
if no row was updated), so we were missing reset in some cases.
sql/sp_head.cc:
SELECT func1(),func2() generates two binlog events, so needs to
clear auto_increment binlog variables after each binlog event
(it would be more natural to clear them in the log write code,
but LOAD DATA INFILE would suffer from this see the cset comment
for log.cc). Without the clearing, the problem is:
> exec func1()
>> call cleanup_after_query() (which does not clear our vars here)
>> binlog SELECT func1()
<
> exec func2()
and so SELECT func2() is binlogged with the auto_inc of SELECT func1().
sql/sql_class.cc:
after every statement we should clear auto_inc variables used for
binlogging, except if this was a function/trigger (in which case
it may be "INSERT SELECT func()", where the cleanup_after_query()
executed in func() should not reset the auto_inc binlog variables
as they'll be necessary when binlogging the INSERT SELECT later).
sql/sql_insert.cc:
- as INSERT DELAYED uses the same TABLE object as the delayed_insert
system thread, we should not call ha_release_auto_increment()
from INSERT DELAYED (and btw it's logical as we reserve nothing
as we don't perform the insert). Calling the function caused us to
release values being used by the delayed_insert thread.
So I do the call only if this is a non-DELAYED INSERT.
- Assuming two INSERT DELAYED which get grouped by the delayed_insert
thread, the second may use values reserved by the first, which is ok
per se, but is a problem in statement-based binlogging:
the 2nd INSERT gets binlogged with the "interval start" value
of the first INSERT (=> duplicate error in slave).
- no reason to ha_release_auto_increment() after every inserted row
in INSERT SELECT; more efficient to do it only when the statement ends
sql/sql_parse.cc:
a comment
2006-09-12 15:42:13 +02:00
|
|
|
select * from t1;
|
|
|
|
select * from t2;
|
2006-08-01 08:49:43 +04:00
|
|
|
|
Fixing problems I identified in my auto_increment work pushed in July
(as part of the auto_increment cleanup of WL#3146; let's not be
sad, that monster push still removed serious bugs):
one problem with INSERT DELAYED (unexpected interval releases),
one with stored functions (wrong auto_inc binlogging).
These bugs were not released.
mysql-test/extra/binlog_tests/binlog_insert_delayed.test:
more tests of binlogging of INSERT DELAYED: with multi-row INSERTs.
I identified why sleeps are needed to get a repeatable row-based
binlogged: because without sleeps rows sometimes get groupped
and so generate different row based events.
mysql-test/extra/rpl_tests/rpl_foreign_key.test:
don't forget to drop tables on slave too, otherwise it leaves
an orphan innodb table leading to rpl_insert_id failing sometimes
(like in pushbuild "sapsrv2 -max").
mysql-test/extra/rpl_tests/rpl_insert_id.test:
testing that if some statement does not update any row, it does
not pollute the auto_inc binlog variables of the next statement;
the test has to use stored procedures because with plain statements,
mysql_reset_thd_for_next_command() does the resetting (and thus
there is no problem); mysql_reset_thd_for_next_command() is not
called inside routines.
mysql-test/r/binlog_row_binlog.result:
result additions
mysql-test/r/binlog_statement_insert_delayed.result:
result additions
mysql-test/r/binlog_stm_binlog.result:
result additions
mysql-test/r/rpl_insert_id.result:
result additions
mysql-test/r/rpl_loaddata.result:
With the change to log.cc reverted, the result changes and is better:
the change to log.cc had caused some INSERT_ID events to disappear
though they were necessary (but testsuite could not catch that because
it's single-threaded).
mysql-test/r/rpl_ndb_insert_ignore.result:
NDB is now like other engines regarding INSERT IGNORE: autoincrement
values which caused a duplicate key are re-used for next row, not lost.
rpl_ndb_insert_ignore.result is now identical to rpl_insert_ignore.result.
sql/log.cc:
LOAD DATA INFILE is binlogged as several events, and the last of them must
have the auto_inc id. So it's wrong to reset the auto_inc id after every
binlog write (because then it's lost after the first event of LOAD
DATA INFILE and so missing for the last one)/
Another problem: MYSQL_LOG::write() is not always called (for example
if no row was updated), so we were missing reset in some cases.
sql/sp_head.cc:
SELECT func1(),func2() generates two binlog events, so needs to
clear auto_increment binlog variables after each binlog event
(it would be more natural to clear them in the log write code,
but LOAD DATA INFILE would suffer from this see the cset comment
for log.cc). Without the clearing, the problem is:
> exec func1()
>> call cleanup_after_query() (which does not clear our vars here)
>> binlog SELECT func1()
<
> exec func2()
and so SELECT func2() is binlogged with the auto_inc of SELECT func1().
sql/sql_class.cc:
after every statement we should clear auto_inc variables used for
binlogging, except if this was a function/trigger (in which case
it may be "INSERT SELECT func()", where the cleanup_after_query()
executed in func() should not reset the auto_inc binlog variables
as they'll be necessary when binlogging the INSERT SELECT later).
sql/sql_insert.cc:
- as INSERT DELAYED uses the same TABLE object as the delayed_insert
system thread, we should not call ha_release_auto_increment()
from INSERT DELAYED (and btw it's logical as we reserve nothing
as we don't perform the insert). Calling the function caused us to
release values being used by the delayed_insert thread.
So I do the call only if this is a non-DELAYED INSERT.
- Assuming two INSERT DELAYED which get grouped by the delayed_insert
thread, the second may use values reserved by the first, which is ok
per se, but is a problem in statement-based binlogging:
the 2nd INSERT gets binlogged with the "interval start" value
of the first INSERT (=> duplicate error in slave).
- no reason to ha_release_auto_increment() after every inserted row
in INSERT SELECT; more efficient to do it only when the statement ends
sql/sql_parse.cc:
a comment
2006-09-12 15:42:13 +02:00
|
|
|
connection master;
|
|
|
|
drop table t1, t2;
|
|
|
|
drop procedure foo;
|
|
|
|
sync_slave_with_master;
|