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bc03c9ef19
upgrading lock, even with low_priority_updates
The problem is that there is no mechanism to control whether a
delayed insert takes a high or low priority lock on a table.
The solution is to modify the delayed insert thread ("handler")
to take into account the global value of low_priority_updates
when taking table locks. The value of low_priority_updates is
retrieved when the insert delayed thread is created and will
remain the same for the duration of the thread.
331 lines
9.8 KiB
Text
331 lines
9.8 KiB
Text
# delayed works differently in embedded server
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--source include/not_embedded.inc
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#
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# test of DELAYED insert and timestamps
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# (Can't be tested with purify :( )
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#
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--disable_warnings
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drop table if exists t1;
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--enable_warnings
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create table t1 (a char(10), tmsp timestamp);
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insert into t1 set a = 1;
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insert delayed into t1 set a = 2;
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insert into t1 set a = 3, tmsp=NULL;
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insert delayed into t1 set a = 4;
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insert delayed into t1 set a = 5, tmsp = 19711006010203;
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insert delayed into t1 (a, tmsp) values (6, 19711006010203);
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insert delayed into t1 (a, tmsp) values (7, NULL);
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# Wait until the rows are flushed to the table files.
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FLUSH TABLE t1;
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insert into t1 set a = 8,tmsp=19711006010203;
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select * from t1 where tmsp=0;
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select * from t1 where tmsp=19711006010203;
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drop table t1;
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#
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# Test bug when inserting NULL into an auto_increment field with
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# INSERT DELAYED
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#
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create table t1 (a int not null auto_increment primary key, b char(10));
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insert delayed into t1 values (1,"b");
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insert delayed into t1 values (null,"c");
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insert delayed into t1 values (3,"d"),(null,"e");
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--error 1136
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insert delayed into t1 values (3,"this will give an","error");
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# Wait until the rows are flushed to the table files.
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FLUSH TABLE t1;
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show status like 'not_flushed_delayed_rows';
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select * from t1;
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drop table t1;
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# End of 4.1 tests
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#
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# Bug #12226: Crash when a delayed insert fails due to a duplicate key
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#
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create table t1 (a int not null primary key);
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insert into t1 values (1);
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insert delayed into t1 values (1);
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select * from t1;
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drop table t1;
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#
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# Bug #20195: INSERT DELAYED with auto_increment is assigned wrong values
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#
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CREATE TABLE t1 ( a int(10) NOT NULL auto_increment, PRIMARY KEY (a));
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# Make one delayed insert to start the separate thread
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insert delayed into t1 values(null);
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# Do some normal inserts
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insert into t1 values(null);
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insert into t1 values(null);
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# Discarded, since the delayed-counter is 2, which is already used
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insert delayed into t1 values(null);
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# Discarded, since the delayed-counter is 3, which is already used
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insert delayed into t1 values(null);
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# Works, since the delayed-counter is 4, which is unused
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insert delayed into t1 values(null);
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# Do some more inserts
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insert into t1 values(null);
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insert into t1 values(null);
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insert into t1 values(null);
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# Delete one of the above to make a hole
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delete from t1 where a=6;
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# Discarded, since the delayed-counter is 5, which is already used
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insert delayed into t1 values(null);
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# Works, since the delayed-counter is 6, which is unused (the row we deleted)
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insert delayed into t1 values(null);
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# Discarded, since the delayed-counter is 7, which is already used
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insert delayed into t1 values(null);
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# Works, since the delayed-counter is 8, which is unused
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insert delayed into t1 values(null);
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# Wait until the rows are flushed to the table files.
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FLUSH TABLE t1;
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# Check what we have now
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select * from t1 order by a;
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DROP TABLE t1;
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#
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# Bug#20627 - INSERT DELAYED does not honour auto_increment_* variables
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#
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SET @bug20627_old_auto_increment_offset=
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@@auto_increment_offset;
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SET @bug20627_old_auto_increment_increment=
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@@auto_increment_increment;
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SET @bug20627_old_session_auto_increment_offset=
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@@session.auto_increment_offset;
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SET @bug20627_old_session_auto_increment_increment=
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@@session.auto_increment_increment;
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SET @@auto_increment_offset= 2;
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SET @@auto_increment_increment= 3;
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SET @@session.auto_increment_offset= 4;
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SET @@session.auto_increment_increment= 5;
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#
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# Normal insert as reference.
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CREATE TABLE t1 (
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c1 INT NOT NULL AUTO_INCREMENT,
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PRIMARY KEY (c1)
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);
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INSERT INTO t1 VALUES (NULL),(NULL),(NULL);
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# Check what we have now
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SELECT * FROM t1;
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DROP TABLE t1;
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#
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# Delayed insert.
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CREATE TABLE t1 (
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c1 INT NOT NULL AUTO_INCREMENT,
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PRIMARY KEY (c1)
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);
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INSERT DELAYED INTO t1 VALUES (NULL),(NULL),(NULL);
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# Wait until the rows are flushed to the table files.
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FLUSH TABLE t1;
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# Check what we have now
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SELECT * FROM t1;
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DROP TABLE t1;
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#
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# Cleanup
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SET @@auto_increment_offset=
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@bug20627_old_auto_increment_offset;
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SET @@auto_increment_increment=
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@bug20627_old_auto_increment_increment;
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SET @@session.auto_increment_offset=
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@bug20627_old_session_auto_increment_offset;
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SET @@session.auto_increment_increment=
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@bug20627_old_session_auto_increment_increment;
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#
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# Bug#20830 - INSERT DELAYED does not honour SET INSERT_ID
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#
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SET @bug20830_old_auto_increment_offset=
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@@auto_increment_offset;
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SET @bug20830_old_auto_increment_increment=
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@@auto_increment_increment;
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SET @bug20830_old_session_auto_increment_offset=
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@@session.auto_increment_offset;
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SET @bug20830_old_session_auto_increment_increment=
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@@session.auto_increment_increment;
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SET @@auto_increment_offset= 2;
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SET @@auto_increment_increment= 3;
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SET @@session.auto_increment_offset= 4;
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SET @@session.auto_increment_increment= 5;
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#
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# Normal insert as reference.
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CREATE TABLE t1 (
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c1 INT(11) NOT NULL AUTO_INCREMENT,
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c2 INT(11) DEFAULT NULL,
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PRIMARY KEY (c1)
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);
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SET insert_id= 14;
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INSERT INTO t1 VALUES(NULL, 11), (NULL, 12), (NULL, 13);
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INSERT INTO t1 VALUES(NULL, 21), (NULL, 22), (NULL, 23);
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# Restart sequence at a different value.
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INSERT INTO t1 VALUES( 69, 31), (NULL, 32), (NULL, 33);
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INSERT INTO t1 VALUES(NULL, 41), (NULL, 42), (NULL, 43);
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# Restart sequence at a different value.
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SET insert_id= 114;
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INSERT INTO t1 VALUES(NULL, 51), (NULL, 52), (NULL, 53);
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INSERT INTO t1 VALUES(NULL, 61), (NULL, 62), (NULL, 63);
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# Set one value below the maximum value.
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INSERT INTO t1 VALUES( 49, 71), (NULL, 72), (NULL, 73);
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INSERT INTO t1 VALUES(NULL, 81), (NULL, 82), (NULL, 83);
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# Create a duplicate value.
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SET insert_id= 114;
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--error ER_DUP_ENTRY
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INSERT INTO t1 VALUES(NULL, 91);
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INSERT INTO t1 VALUES (NULL, 92), (NULL, 93);
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# Check what we have now
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SELECT * FROM t1;
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SELECT COUNT(*) FROM t1;
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SELECT SUM(c1) FROM t1;
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DROP TABLE t1;
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#
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# Delayed insert.
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CREATE TABLE t1 (
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c1 INT(11) NOT NULL AUTO_INCREMENT,
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c2 INT(11) DEFAULT NULL,
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PRIMARY KEY (c1)
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);
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SET insert_id= 14;
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INSERT DELAYED INTO t1 VALUES(NULL, 11), (NULL, 12), (NULL, 13);
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INSERT DELAYED INTO t1 VALUES(NULL, 21), (NULL, 22), (NULL, 23);
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# Restart sequence at a different value.
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INSERT DELAYED INTO t1 VALUES( 69, 31), (NULL, 32), (NULL, 33);
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INSERT DELAYED INTO t1 VALUES(NULL, 41), (NULL, 42), (NULL, 43);
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# Restart sequence at a different value.
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SET insert_id= 114;
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INSERT DELAYED INTO t1 VALUES(NULL, 51), (NULL, 52), (NULL, 53);
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INSERT DELAYED INTO t1 VALUES(NULL, 61), (NULL, 62), (NULL, 63);
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# Set one value below the maximum value.
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INSERT DELAYED INTO t1 VALUES( 49, 71), (NULL, 72), (NULL, 73);
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INSERT DELAYED INTO t1 VALUES(NULL, 81), (NULL, 82), (NULL, 83);
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# Create a duplicate value.
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SET insert_id= 114;
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INSERT DELAYED INTO t1 VALUES(NULL, 91);
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INSERT DELAYED INTO t1 VALUES (NULL, 92), (NULL, 93);
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# Wait until the rows are flushed to the table files.
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FLUSH TABLE t1;
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# Check what we have now
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SELECT * FROM t1;
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SELECT COUNT(*) FROM t1;
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SELECT SUM(c1) FROM t1;
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DROP TABLE t1;
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#
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# Cleanup
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SET @@auto_increment_offset=
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@bug20830_old_auto_increment_offset;
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SET @@auto_increment_increment=
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@bug20830_old_auto_increment_increment;
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SET @@session.auto_increment_offset=
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@bug20830_old_session_auto_increment_offset;
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SET @@session.auto_increment_increment=
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@bug20830_old_session_auto_increment_increment;
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#
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# BUG#26238 - inserted delayed always inserts 0 for BIT columns
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#
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CREATE TABLE t1(a BIT);
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INSERT DELAYED INTO t1 VALUES(1);
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FLUSH TABLE t1;
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SELECT HEX(a) FROM t1;
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DROP TABLE t1;
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#
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# Bug #32676: insert delayed crash with wrong column and function specified
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#
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CREATE TABLE t1 (a INT);
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--error ER_BAD_FIELD_ERROR
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INSERT DELAYED INTO t1 SET b= b();
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DROP TABLE t1;
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--echo End of 5.0 tests
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#
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# Bug#27358 INSERT DELAYED does not honour SQL_MODE of the client
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#
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--disable_warnings
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DROP TABLE IF EXISTS t1,t2;
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--enable_warnings
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SET SQL_MODE='NO_AUTO_VALUE_ON_ZERO';
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CREATE TABLE `t1` (
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`id` int(11) PRIMARY KEY auto_increment,
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`f1` varchar(10) NOT NULL UNIQUE
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);
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INSERT DELAYED INTO t1 VALUES(0,"test1");
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sleep 1;
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SELECT * FROM t1;
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SET SQL_MODE='PIPES_AS_CONCAT';
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INSERT DELAYED INTO t1 VALUES(0,'a' || 'b');
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sleep 1;
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SELECT * FROM t1;
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SET SQL_MODE='ERROR_FOR_DIVISION_BY_ZERO,STRICT_ALL_TABLES';
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--error 1365
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INSERT DELAYED INTO t1 VALUES(mod(1,0),"test3");
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CREATE TABLE t2 (
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`id` int(11) PRIMARY KEY auto_increment,
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`f1` date
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);
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SET SQL_MODE='NO_ZERO_DATE,STRICT_ALL_TABLES,NO_ZERO_IN_DATE';
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--error ER_TRUNCATED_WRONG_VALUE
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INSERT DELAYED INTO t2 VALUES (0,'0000-00-00');
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--error ER_TRUNCATED_WRONG_VALUE
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INSERT DELAYED INTO t2 VALUES (0,'2007-00-00');
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DROP TABLE t1,t2;
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#
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# Bug#40536: SELECT is blocked by INSERT DELAYED waiting on upgrading lock,
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# even with low_priority_updates
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#
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set @old_delayed_updates = @@global.low_priority_updates;
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set global low_priority_updates = 1;
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select @@global.low_priority_updates;
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--disable_warnings
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drop table if exists t1;
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--enable_warnings
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create table t1 (a int, b int);
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insert into t1 values (1,1);
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lock table t1 read;
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connect (update,localhost,root,,);
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connection update;
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--echo connection: update
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--send insert delayed into t1 values (2,2);
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connection default;
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let $wait_condition=
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select count(*) = 1 from information_schema.processlist
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where command = "Delayed insert" and state = "upgrading lock";
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--source include/wait_condition.inc
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connect (select,localhost,root,,);
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--echo connection: select
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select * from t1;
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connection default;
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--echo connection: default
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select * from t1;
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connection default;
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disconnect update;
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disconnect select;
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unlock tables;
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let $wait_condition=
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select count(*) = 1 from information_schema.processlist
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where command = "Delayed insert" and state = "Waiting for INSERT";
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--source include/wait_condition.inc
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select * from t1;
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drop table t1;
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set global low_priority_updates = @old_delayed_updates;
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--echo End of 5.1 tests
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