mirror of
https://github.com/MariaDB/server.git
synced 2025-11-03 14:33:32 +03:00
d665e79c5b
for InnoDB tables" Don't use thr_lock.c locks for InnoDB tables. Below is list of changes that were needed to implement this: - HANDLER OPEN acquireis MDL_SHARED_READ instead of MDL_SHARED - HANDLER READ calls external_lock() even if SE is not going to be locked by THR_LOCK - InnoDB lock wait timeouts are now honored which are much shorter by default than server lock wait timeouts (1 year vs 50 seconds) - with @@autocommit= 1 LOCK TABLES disables autocommit implicitely, though user still sees @@autocommt= 1 - the above starts implicit transaction - transactions started by LOCK TABLES are now rolled back on disconnect (previously everything was committed due to autocommit) - transactions started by LOCK TABLES are now rolled back by ROLLBACK (previously everything was committed due to autocommit) - it is now impossible to change BINLOG_FORMAT under LOCK TABLES (at least to statement) due to running transaction - LOCK TABLES WRITE is additionally handled by MDL - ...in contrast LOCK TABLES READ protection against DML is pure InnoDB - combining transactional and non-transactional tables under LOCK TABLES may cause rolled back changes in transactional table and "committed" changes in non-transactional table - user may disable innodb_table_locks, which will cause LOCK TABLES to be noop basically Removed tests for BUG#45143 and BUG#55930 which cover InnoDB + THR_LOCK. To operate properly these tests require code flow to go through THR_LOCK debug sync points, which is not the case after this patch. These tests are removed by WL#6671 as well. An alternative is to port them to different storage engine.
315 lines
9.5 KiB
Plaintext
315 lines
9.5 KiB
Plaintext
drop table if exists t1,t3,t4,t5;
|
|
drop database if exists test_test;
|
|
SET SESSION STORAGE_ENGINE = MyISAM;
|
|
drop table if exists t1,t3,t4,t5;
|
|
create table t1 (a int, b char(10), key a using btree (a), key b using btree (a,b));
|
|
insert into t1 values
|
|
(17,"ddd"),(18,"eee"),(19,"fff"),(19,"yyy"),
|
|
(14,"aaa"),(16,"ccc"),(16,"xxx"),
|
|
(20,"ggg"),(21,"hhh"),(22,"iii"),(23,"xxx"),(24,"xxx"),(25,"xxx");
|
|
handler t1 open;
|
|
handler t1 read a=(SELECT 1);
|
|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SELECT 1)' at line 1
|
|
handler t1 read a=(1) FIRST;
|
|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'FIRST' at line 1
|
|
handler t1 read a=(1) NEXT;
|
|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'NEXT' at line 1
|
|
handler t1 read last;
|
|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1
|
|
handler t1 close;
|
|
drop table t1;
|
|
CREATE TABLE t1(a INT, PRIMARY KEY(a));
|
|
insert into t1 values(1),(2);
|
|
handler t1 open;
|
|
handler t1 read primary=(1);
|
|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'primary=(1)' at line 1
|
|
handler t1 read `primary`=(1);
|
|
a
|
|
1
|
|
handler t1 close;
|
|
drop table t1;
|
|
create database test_test;
|
|
use test_test;
|
|
create table t1(table_id char(20), primary key (table_id));
|
|
insert into t1 values ('test_test.t1');
|
|
insert into t1 values ('');
|
|
handler t1 open;
|
|
handler t1 read first limit 9;
|
|
table_id
|
|
test_test.t1
|
|
|
|
create table t2(table_id char(20), primary key (table_id));
|
|
insert into t2 values ('test_test.t2');
|
|
insert into t2 values ('');
|
|
handler t2 open;
|
|
handler t2 read first limit 9;
|
|
table_id
|
|
test_test.t2
|
|
|
|
use test;
|
|
create table t1(table_id char(20), primary key (table_id));
|
|
insert into t1 values ('test.t1');
|
|
insert into t1 values ('');
|
|
handler t1 open;
|
|
ERROR 42000: Not unique table/alias: 't1'
|
|
use test;
|
|
handler test.t1 read first limit 9;
|
|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'read first limit 9' at line 1
|
|
handler test_test.t1 read first limit 9;
|
|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'read first limit 9' at line 1
|
|
handler t1 read first limit 9;
|
|
table_id
|
|
test_test.t1
|
|
|
|
handler test_test.t2 read first limit 9;
|
|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'read first limit 9' at line 1
|
|
handler t2 read first limit 9;
|
|
table_id
|
|
test_test.t2
|
|
|
|
handler test_test.t1 close;
|
|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'close' at line 1
|
|
handler t1 close;
|
|
drop table test_test.t1;
|
|
handler test_test.t2 close;
|
|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'close' at line 1
|
|
handler t2 close;
|
|
drop table test_test.t2;
|
|
drop database test_test;
|
|
use test;
|
|
handler test.t1 close;
|
|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'close' at line 1
|
|
handler t1 close;
|
|
ERROR 42S02: Unknown table 't1' in HANDLER
|
|
drop table test.t1;
|
|
create database test_test;
|
|
use test_test;
|
|
create table t1 (c1 char(20));
|
|
insert into t1 values ('test_test.t1');
|
|
create table t3 (c1 char(20));
|
|
insert into t3 values ('test_test.t3');
|
|
handler t1 open;
|
|
handler t1 read first limit 9;
|
|
c1
|
|
test_test.t1
|
|
handler t1 open h1;
|
|
handler h1 read first limit 9;
|
|
c1
|
|
test_test.t1
|
|
use test;
|
|
create table t1 (c1 char(20));
|
|
create table t2 (c1 char(20));
|
|
create table t3 (c1 char(20));
|
|
insert into t1 values ('t1');
|
|
insert into t2 values ('t2');
|
|
insert into t3 values ('t3');
|
|
handler t1 open;
|
|
ERROR 42000: Not unique table/alias: 't1'
|
|
handler t2 open t1;
|
|
ERROR 42000: Not unique table/alias: 't1'
|
|
handler t3 open t1;
|
|
ERROR 42000: Not unique table/alias: 't1'
|
|
handler t1 read first limit 9;
|
|
c1
|
|
test_test.t1
|
|
handler test.t1 close;
|
|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'close' at line 1
|
|
handler test.t1 open h1;
|
|
ERROR 42000: Not unique table/alias: 'h1'
|
|
handler test_test.t1 open h1;
|
|
ERROR 42000: Not unique table/alias: 'h1'
|
|
handler test_test.t3 open h3;
|
|
handler test.t1 open h2;
|
|
handler t1 read first limit 9;
|
|
c1
|
|
test_test.t1
|
|
handler h1 read first limit 9;
|
|
c1
|
|
test_test.t1
|
|
handler h2 read first limit 9;
|
|
c1
|
|
t1
|
|
handler h3 read first limit 9;
|
|
c1
|
|
test_test.t3
|
|
handler h2 read first limit 9;
|
|
c1
|
|
t1
|
|
handler test.h1 close;
|
|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'close' at line 1
|
|
handler t1 close;
|
|
handler h1 close;
|
|
handler h2 close;
|
|
handler t1 read first limit 9;
|
|
ERROR 42S02: Unknown table 't1' in HANDLER
|
|
handler h1 read first limit 9;
|
|
ERROR 42S02: Unknown table 'h1' in HANDLER
|
|
handler h2 read first limit 9;
|
|
ERROR 42S02: Unknown table 'h2' in HANDLER
|
|
handler h3 read first limit 9;
|
|
c1
|
|
test_test.t3
|
|
handler h3 read first limit 9;
|
|
c1
|
|
test_test.t3
|
|
use test_test;
|
|
handler h3 read first limit 9;
|
|
c1
|
|
test_test.t3
|
|
handler test.h3 read first limit 9;
|
|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'read first limit 9' at line 1
|
|
handler h3 close;
|
|
use test;
|
|
drop table t3;
|
|
drop table t2;
|
|
drop table t1;
|
|
drop database test_test;
|
|
create table t1 (c1 int);
|
|
create table t2 (c1 int);
|
|
insert into t1 values (1);
|
|
insert into t2 values (2);
|
|
handler t1 open;
|
|
handler t1 read first;
|
|
c1
|
|
1
|
|
connect flush,localhost,root,,;
|
|
connection flush;
|
|
flush tables;
|
|
connect waiter,localhost,root,,;
|
|
connection waiter;
|
|
connection default;
|
|
handler t2 open;
|
|
handler t2 read first;
|
|
c1
|
|
2
|
|
handler t1 read next;
|
|
c1
|
|
1
|
|
handler t1 close;
|
|
handler t2 close;
|
|
connection flush;
|
|
connection default;
|
|
drop table t1,t2;
|
|
disconnect flush;
|
|
drop table if exists t1, t0;
|
|
create table t1 (c1 int);
|
|
handler t1 open;
|
|
handler t1 read first;
|
|
c1
|
|
connect flush,localhost,root,,;
|
|
connection flush;
|
|
rename table t1 to t0;
|
|
connection waiter;
|
|
connection default;
|
|
#
|
|
# RENAME placed two pending locks and waits.
|
|
# When HANDLER t0 OPEN does open_tables(), it calls
|
|
# mysql_ha_flush(), which in turn closes the open HANDLER for t1.
|
|
# RENAME TABLE gets unblocked. If it gets scheduled quickly
|
|
# and manages to complete before open_tables()
|
|
# of HANDLER t0 OPEN, open_tables() and therefore the whole
|
|
# HANDLER t0 OPEN succeeds. Otherwise open_tables()
|
|
# notices a pending or active exclusive metadata lock on t2
|
|
# and the whole HANDLER t0 OPEN fails with ER_LOCK_DEADLOCK
|
|
# error.
|
|
#
|
|
handler t0 open;
|
|
handler t0 close;
|
|
connection flush;
|
|
handler t1 read next;
|
|
ERROR 42S02: Unknown table 't1' in HANDLER
|
|
handler t1 close;
|
|
ERROR 42S02: Unknown table 't1' in HANDLER
|
|
connection default;
|
|
drop table t0;
|
|
connection flush;
|
|
disconnect flush;
|
|
connection waiter;
|
|
disconnect waiter;
|
|
connection default;
|
|
create table t1 (a int);
|
|
handler t1 open as t1_alias;
|
|
drop table t1;
|
|
create table t1 (a int);
|
|
handler t1 open as t1_alias;
|
|
flush tables;
|
|
drop table t1;
|
|
create table t1 (a int);
|
|
handler t1 open as t1_alias;
|
|
handler t1_alias close;
|
|
drop table t1;
|
|
create table t1 (a int);
|
|
handler t1 open as t1_alias;
|
|
handler t1_alias read first;
|
|
a
|
|
drop table t1;
|
|
handler t1_alias read next;
|
|
ERROR 42S02: Unknown table 't1_alias' in HANDLER
|
|
create table t1 (a int, b char(1), key a (a), key b (a,b));
|
|
insert into t1 values (0,"a"),(1,"b"),(2,"c"),(3,"d"),(4,"e"),
|
|
(5,"f"),(6,"g"),(7,"h"),(8,"i"),(9,"j");
|
|
handler t1 open;
|
|
handler t1 read a first;
|
|
a b
|
|
0 a
|
|
handler t1 read a next;
|
|
a b
|
|
1 b
|
|
flush tables;
|
|
handler t1 read a next;
|
|
a b
|
|
0 a
|
|
handler t1 read a next;
|
|
a b
|
|
1 b
|
|
flush tables with read lock;
|
|
handler t1 read a next;
|
|
a b
|
|
0 a
|
|
unlock tables;
|
|
drop table t1;
|
|
handler t1 read a next;
|
|
ERROR 42S02: Unknown table 't1' in HANDLER
|
|
connect con1,localhost,root,,;
|
|
connect con2,localhost,root,,;
|
|
# Now test case which was reported originally but which no longer
|
|
# triggers execution path which has caused the problem.
|
|
connection default;
|
|
create table t1 (a int not null);
|
|
insert into t1 values (1);
|
|
handler t1 open;
|
|
connection con1;
|
|
alter table t1 engine=csv;
|
|
connection con2;
|
|
connection default;
|
|
# Since S metadata lock was already acquired at HANDLER OPEN time
|
|
# and TL_READ lock requested by HANDLER READ is compatible with
|
|
# ALTER's TL_WRITE_ALLOW_READ the below statement should succeed
|
|
# without waiting. The old version of table should be used in it.
|
|
handler t1 read next;
|
|
a
|
|
1
|
|
handler t1 close;
|
|
connection con1;
|
|
drop table t1;
|
|
disconnect con1;
|
|
connection con2;
|
|
disconnect con2;
|
|
connection default;
|
|
USE information_schema;
|
|
HANDLER COLUMNS OPEN;
|
|
ERROR HY000: Incorrect usage of HANDLER OPEN and information_schema
|
|
USE test;
|
|
PREPARE h_r FROM 'HANDLER t1 READ `PRIMARY` LAST';
|
|
ERROR 42S02: Unknown table 't1' in HANDLER
|
|
create view v as select 1;
|
|
create temporary table v as select 2;
|
|
handler v open;
|
|
prepare stmt from 'create table if not exists v as select 3';
|
|
execute stmt;
|
|
Warnings:
|
|
Note 1050 Table 'v' already exists
|
|
handler v read next;
|
|
ERROR 42S02: Unknown table 'v' in HANDLER
|
|
drop view v;
|