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Merge bodhi.(none):/opt/local/work/mysql-5.0-runtime

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into  bodhi.(none):/opt/local/work/mysql-5.1-runtime


mysql-test/r/trigger.result:
  Auto merged
mysql-test/t/query_cache.test:
  Auto merged
mysql-test/t/sp.test:
  Auto merged
mysql-test/t/trigger.test:
  Auto merged
sql/item.cc:
  Auto merged
sql/item.h:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/sp_head.h:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_db.cc:
  Auto merged
sql/sql_lex.cc:
  Auto merged
sql/sql_lex.h:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/sql_show.cc:
  Auto merged
sql/sql_trigger.h:
  Auto merged
sql/sql_view.cc:
  Auto merged
sql/table.cc:
  Auto merged
storage/myisam/ha_myisam.h:
  Auto merged
mysql-test/include/mix1.inc:
  Manual merge.
mysql-test/r/information_schema.result:
  Manual merge.
mysql-test/r/innodb_mysql.result:
  Manual merge.
mysql-test/r/query_cache.result:
  Manual merge.
mysql-test/r/sp.result:
  Manual merge.
mysql-test/t/information_schema.test:
  Manual merge.
sql/handler.h:
  Manual merge.
sql/sp.cc:
  Manual merge.
sql/sp_head.cc:
  Manual merge.
sql/sql_prepare.cc:
  Manual merge.
sql/sql_trigger.cc:
  Manual merge.
sql/sql_yacc.yy:
  Manual merge.
sql/table.h:
  Manual merge.
storage/myisam/ha_myisam.cc:
  Manual merge.
This commit is contained in:
unknown 2007-07-16 23:31:36 +04:00
commit 9562c54a5c
36 changed files with 1784 additions and 269 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

74
mysql-test/include/mix1.inc
View File

@ -222,9 +222,6 @@ t1.a4='UNcT5pIde4I6c2SheTo4gt92OV1jgJCVkXmzyf325R1DwLURkbYHwhydANIZMbKTgdcR5xS';
DROP TABLE t1;
--echo End of 4.1 tests
#
# Bug #12882 min/max inconsistent on empty table
#
@ -423,24 +420,6 @@ SELECT COUNT(*) FROM t2 LEFT JOIN t1 ON t2.fkey = t1.id
DROP TABLE t1,t2;
#
# Bug#22781: SQL_BIG_RESULT fails to influence sort plan
#
CREATE TABLE t1 (a INT PRIMARY KEY, b INT, c FLOAT, KEY b(b)) ENGINE = INNODB;
INSERT INTO t1 VALUES ( 1 , 1 , 1);
INSERT INTO t1 SELECT a + 1 , MOD(a + 1 , 20), 1 FROM t1;
INSERT INTO t1 SELECT a + 2 , MOD(a + 2 , 20), 1 FROM t1;
INSERT INTO t1 SELECT a + 4 , MOD(a + 4 , 20), 1 FROM t1;
INSERT INTO t1 SELECT a + 8 , MOD(a + 8 , 20), 1 FROM t1;
INSERT INTO t1 SELECT a + 16, MOD(a + 16, 20), 1 FROM t1;
INSERT INTO t1 SELECT a + 32, MOD(a + 32, 20), 1 FROM t1;
INSERT INTO t1 SELECT a + 64, MOD(a + 64, 20), 1 FROM t1;
EXPLAIN SELECT b, SUM(c) FROM t1 GROUP BY b;
EXPLAIN SELECT SQL_BIG_RESULT b, SUM(c) FROM t1 GROUP BY b;
DROP TABLE t1;
#
# Bug#26159: crash for a loose scan of a table that has been emptied
#
@ -501,40 +480,6 @@ set global query_cache_size=@save_qcache_size;
--source include/innodb_rollback_on_timeout.inc
#
# Bug #27210: INNODB ON DUPLICATE KEY UPDATE
#
set @save_qcache_size=@@global.query_cache_size;
set @save_qcache_type=@@global.query_cache_type;
set global query_cache_size=10*1024*1024;
set global query_cache_type=1;
connect (con1,localhost,root,,);
connection con1;
drop table if exists `test`;
CREATE TABLE `test` (`test1` varchar(3) NOT NULL,
`test2` varchar(4) NOT NULL,PRIMARY KEY (`test1`))
ENGINE=InnoDB DEFAULT CHARSET=latin1;
INSERT INTO `test` (`test1`, `test2`) VALUES ('tes', '5678');
disconnect con1;
connect (con2,localhost,root,,);
connection con2;
select * from test;
INSERT INTO `test` (`test1`, `test2`) VALUES ('tes', '1234')
ON DUPLICATE KEY UPDATE `test2` = '1234';
select * from test;
flush tables;
select * from test;
disconnect con2;
connection default;
drop table test;
set global query_cache_type=@save_qcache_type;
set global query_cache_size=@save_qcache_size;
--echo End of 5.0 tests
-- source include/have_innodb.inc
#
# Bug #27650: INSERT fails after multi-row INSERT of the form:
# INSERT INTO t (id...) VALUES (NULL...) ON DUPLICATE KEY UPDATE id=VALUES(id)
@ -720,7 +665,6 @@ DISCONNECT c1;
DISCONNECT c2;
DROP TABLE t1,t2;
#
# Bug #25798: a query with forced index merge returns wrong result
#
@ -778,9 +722,6 @@ set @@sort_buffer_size=default;
DROP TABLE t1,t2;
--echo End of 5.0 tests
#
# Test of behaviour with CREATE ... SELECT
#
@ -858,6 +799,21 @@ DROP TABLE t1;
--source include/innodb_rollback_on_timeout.inc
#
# Bug#27296 Assertion in ALTER TABLE SET DEFAULT in Linux Debug build
# (possible deadlock).
#
# The bug is applicable only to a transactoinal table.
# Cover with tests behavior that no longer causes an
# assertion.
#
--disable_warnings
drop table if exists t1;
--enable_warnings
create table t1 (a int) engine=innodb;
alter table t1 alter a set default 1;
drop table t1;
--echo End of 5.0 tests

6
mysql-test/r/information_schema.result
View File

@ -1066,7 +1066,7 @@ c int(11) YES NULL
drop view v1;
drop table t1;
alter database information_schema;
ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1
drop database information_schema;
ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
drop table information_schema.tables;
@ -1412,6 +1412,10 @@ v2 YES
delete from v1;
drop view v1,v2;
drop table t1,t2;
alter database;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1
alter database test;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1
End of 5.0 tests.
select * from information_schema.engines WHERE ENGINE="MyISAM";
ENGINE SUPPORT COMMENT TRANSACTIONS XA SAVEPOINTS

5
mysql-test/r/innodb_mysql.result
View File

@ -529,6 +529,10 @@ tes 1234
drop table test;
set global query_cache_type=@save_qcache_type;
set global query_cache_size=@save_qcache_size;
drop table if exists t1;
create table t1 (a int) engine=innodb;
alter table t1 alter a set default 1;
drop table t1;
End of 5.0 tests
create table t1(
id int auto_increment,
@ -739,7 +743,6 @@ COUNT(*)
3072
set @@sort_buffer_size=default;
DROP TABLE t1,t2;
End of 5.0 tests
CREATE TABLE t1 (a int, b int);
insert into t1 values (1,1),(1,2);
CREATE TABLE t2 (primary key (a)) select * from t1;

41
mysql-test/r/query_cache.result
View File

@ -1495,6 +1495,46 @@ insert into t1 values ('c');
a
drop table t1;
set GLOBAL query_cache_size= default;
Bug#28249 Query Cache returns wrong result with concurrent insert/ certain lock
set GLOBAL query_cache_type=1;
set GLOBAL query_cache_limit=10000;
set GLOBAL query_cache_min_res_unit=0;
set GLOBAL query_cache_size= 100000;
flush tables;
drop table if exists t1, t2;
create table t1 (a int);
create table t2 (a int);
insert into t1 values (1),(2),(3);
Locking table T2 with a write lock.
lock table t2 write;
Select blocked by write lock.
select *, (select count(*) from t2) from t1;;
Sleeing is ok, because selecting should be done very fast.
Inserting into table T1.
insert into t1 values (4);
Unlocking the tables.
unlock tables;
Collecting result from previously blocked select.
Next select should contain 4 rows, as the insert is long finished.
select *, (select count(*) from t2) from t1;
a (select count(*) from t2)
1 0
2 0
3 0
4 0
reset query cache;
select *, (select count(*) from t2) from t1;
a (select count(*) from t2)
1 0
2 0
3 0
4 0
drop table t1,t2;
set GLOBAL query_cache_type=default;
set GLOBAL query_cache_limit=default;
set GLOBAL query_cache_min_res_unit=default;
set GLOBAL query_cache_size=default;
End of 5.0 tests
drop database if exists db1;
drop database if exists db2;
set GLOBAL query_cache_size=15*1024*1024;
@ -1543,3 +1583,4 @@ Variable_name Value
Qcache_queries_in_cache 1
drop database db2;
drop database db3;
End of 5.1 tests

25
mysql-test/r/sp.result
View File

@ -5659,6 +5659,31 @@ t3_id_1 t3_id_2 t4_id
DROP PROCEDURE p1|
DROP VIEW v1, v2|
DROP TABLE t3, t4|
drop database if exists mysqltest_db1;
create database mysqltest_db1;
create procedure mysqltest_db1.sp_bug28551() begin end;
call mysqltest_db1.sp_bug28551();
show warnings;
Level Code Message
drop database mysqltest_db1;
drop database if exists mysqltest_db1;
drop table if exists test.t1;
create database mysqltest_db1;
use mysqltest_db1;
drop database mysqltest_db1;
create table test.t1 (id int);
insert into test.t1 (id) values (1);
create procedure test.sp_bug29050() begin select * from t1; end//
show warnings;
Level Code Message
call test.sp_bug29050();
id
1
show warnings;
Level Code Message
use test;
drop procedure sp_bug29050;
drop table t1;
End of 5.0 tests
Begin of 5.1 tests
drop function if exists pi;

59
mysql-test/r/trigger-trans.result
View File

@ -82,3 +82,62 @@ ALICE 33 1 0
THE CROWN 43 1 0
THE PIE 53 1 1
drop table t1;
Bug#26141 mixing table types in trigger causes full
table lock on innodb table
Ensure we do not open and lock tables for the triggers we do not
fire.
drop table if exists t1, t2, t3;
drop trigger if exists trg_bug26141_au;
drop trigger if exists trg_bug26141_ai;
create table t1 (c int primary key) engine=innodb;
create table t2 (c int) engine=myisam;
create table t3 (c int) engine=myisam;
insert into t1 (c) values (1);
create trigger trg_bug26141_ai after insert on t1
for each row
begin
insert into t2 (c) values (1);
# We need the 'sync' lock to synchronously wait in connection 2 till
# the moment when the trigger acquired all the locks.
select release_lock("lock_bug26141_sync") into @a;
# 1000 is time in seconds of lock wait timeout -- this is a way
# to cause a manageable sleep up to 1000 seconds
select get_lock("lock_bug26141_wait", 1000) into @a;
end|
create trigger trg_bug26141_au after update on t1
for each row
begin
insert into t3 (c) values (1);
end|
select get_lock("lock_bug26141_wait", 0);
get_lock("lock_bug26141_wait", 0)
1
select get_lock("lock_bug26141_sync", /* must not be priorly locked */ 0);
get_lock("lock_bug26141_sync", /* must not be priorly locked */ 0)
1
insert into t1 (c) values (2);
select get_lock("lock_bug26141_sync", 1000);
get_lock("lock_bug26141_sync", 1000)
1
update t1 set c=3 where c=1;
select release_lock("lock_bug26141_sync");
release_lock("lock_bug26141_sync")
1
select release_lock("lock_bug26141_wait");
release_lock("lock_bug26141_wait")
1
select * from t1;
c
2
3
select * from t2;
c
1
select * from t3;
c
1
drop table t1, t2, t3;
End of 5.0 tests

461
mysql-test/r/trigger.result
View File

@ -351,7 +351,7 @@ create trigger trg1 before insert on mysqltest.t1 for each row set @a:= 1;
ERROR HY000: Trigger in wrong schema
use mysqltest;
create trigger test.trg1 before insert on t1 for each row set @a:= 1;
ERROR HY000: Trigger in wrong schema
ERROR 42S02: Table 'test.t1' doesn't exist
drop database mysqltest;
use test;
create table t1 (i int, j int default 10, k int not null, key (k));
@ -842,7 +842,7 @@ drop table t1;
create trigger t1_bi before insert on test.t1 for each row set @a:=0;
ERROR 3D000: No database selected
create trigger test.t1_bi before insert on t1 for each row set @a:=0;
ERROR 3D000: No database selected
ERROR 42S02: Table 'test.t1' doesn't exist
drop trigger t1_bi;
ERROR 3D000: No database selected
create table t1 (id int);
@ -1476,6 +1476,463 @@ DROP TRIGGER t1_test;
DROP TABLE t1,t2;
SET SESSION LOW_PRIORITY_UPDATES=DEFAULT;
SET GLOBAL LOW_PRIORITY_UPDATES=DEFAULT;
Bug#28502 Triggers that update another innodb table will block
on X lock unnecessarily
Ensure we do not open and lock tables for triggers we do not fire.
drop table if exists t1, t2;
drop trigger if exists trg_bug28502_au;
create table t1 (id int, count int);
create table t2 (id int);
create trigger trg_bug28502_au before update on t2
for each row
begin
if (new.id is not null) then
update t1 set count= count + 1 where id = old.id;
end if;
end|
insert into t1 (id, count) values (1, 0);
lock table t1 write;
insert into t2 set id=1;
unlock tables;
update t2 set id=1 where id=1;
select * from t1;
id count
1 1
select * from t2;
id
1
drop table t1, t2;
Additionally, provide test coverage for triggers and
all MySQL data changing commands.
drop table if exists t1, t2, t1_op_log;
drop view if exists v1;
drop trigger if exists trg_bug28502_bi;
drop trigger if exists trg_bug28502_ai;
drop trigger if exists trg_bug28502_bu;
drop trigger if exists trg_bug28502_au;
drop trigger if exists trg_bug28502_bd;
drop trigger if exists trg_bug28502_ad;
create table t1 (id int primary key auto_increment, operation varchar(255));
create table t2 (id int primary key);
create table t1_op_log(operation varchar(255));
create view v1 as select * from t1;
create trigger trg_bug28502_bi before insert on t1
for each row
insert into t1_op_log (operation)
values (concat("Before INSERT, new=", new.operation));
create trigger trg_bug28502_ai after insert on t1
for each row
insert into t1_op_log (operation)
values (concat("After INSERT, new=", new.operation));
create trigger trg_bug28502_bu before update on t1
for each row
insert into t1_op_log (operation)
values (concat("Before UPDATE, new=", new.operation,
", old=", old.operation));
create trigger trg_bug28502_au after update on t1
for each row
insert into t1_op_log (operation)
values (concat("After UPDATE, new=", new.operation,
", old=", old.operation));
create trigger trg_bug28502_bd before delete on t1
for each row
insert into t1_op_log (operation)
values (concat("Before DELETE, old=", old.operation));
create trigger trg_bug28502_ad after delete on t1
for each row
insert into t1_op_log (operation)
values (concat("After DELETE, old=", old.operation));
insert into t1 (operation) values ("INSERT");
set @id=last_insert_id();
select * from t1;
id operation
1 INSERT
select * from t1_op_log;
operation
Before INSERT, new=INSERT
After INSERT, new=INSERT
truncate t1_op_log;
update t1 set operation="UPDATE" where id=@id;
select * from t1;
id operation
1 UPDATE
select * from t1_op_log;
operation
Before UPDATE, new=UPDATE, old=INSERT
After UPDATE, new=UPDATE, old=INSERT
truncate t1_op_log;
delete from t1 where id=@id;
select * from t1;
id operation
select * from t1_op_log;
operation
Before DELETE, old=UPDATE
After DELETE, old=UPDATE
truncate t1;
truncate t1_op_log;
insert into t1 (id, operation) values
(NULL, "INSERT ON DUPLICATE KEY UPDATE, inserting a new key")
on duplicate key update id=NULL, operation="Should never happen";
set @id=last_insert_id();
select * from t1;
id operation
1 INSERT ON DUPLICATE KEY UPDATE, inserting a new key
select * from t1_op_log;
operation
Before INSERT, new=INSERT ON DUPLICATE KEY UPDATE, inserting a new key
After INSERT, new=INSERT ON DUPLICATE KEY UPDATE, inserting a new key
truncate t1_op_log;
insert into t1 (id, operation) values
(@id, "INSERT ON DUPLICATE KEY UPDATE, the key value is the same")
on duplicate key update id=NULL,
operation="INSERT ON DUPLICATE KEY UPDATE, updating the duplicate";
select * from t1;
id operation
0 INSERT ON DUPLICATE KEY UPDATE, updating the duplicate
select * from t1_op_log;
operation
Before INSERT, new=INSERT ON DUPLICATE KEY UPDATE, the key value is the same
Before UPDATE, new=INSERT ON DUPLICATE KEY UPDATE, updating the duplicate, old=INSERT ON DUPLICATE KEY UPDATE, inserting a new key
After UPDATE, new=INSERT ON DUPLICATE KEY UPDATE, updating the duplicate, old=INSERT ON DUPLICATE KEY UPDATE, inserting a new key
truncate t1;
truncate t1_op_log;
replace into t1 values (NULL, "REPLACE, inserting a new key");
set @id=last_insert_id();
select * from t1;
id operation
1 REPLACE, inserting a new key
select * from t1_op_log;
operation
Before INSERT, new=REPLACE, inserting a new key
After INSERT, new=REPLACE, inserting a new key
truncate t1_op_log;
replace into t1 values (@id, "REPLACE, deleting the duplicate");
select * from t1;
id operation
1 REPLACE, deleting the duplicate
select * from t1_op_log;
operation
Before INSERT, new=REPLACE, deleting the duplicate
Before DELETE, old=REPLACE, inserting a new key
After DELETE, old=REPLACE, inserting a new key
After INSERT, new=REPLACE, deleting the duplicate
truncate t1;
truncate t1_op_log;
create table if not exists t1
select NULL, "CREATE TABLE ... SELECT, inserting a new key";
Warnings:
Note 1050 Table 't1' already exists
set @id=last_insert_id();
select * from t1;
id operation
1 CREATE TABLE ... SELECT, inserting a new key
select * from t1_op_log;
operation
Before INSERT, new=CREATE TABLE ... SELECT, inserting a new key
After INSERT, new=CREATE TABLE ... SELECT, inserting a new key
truncate t1_op_log;
create table if not exists t1 replace
select @id, "CREATE TABLE ... REPLACE SELECT, deleting a duplicate key";
Warnings:
Note 1050 Table 't1' already exists
select * from t1;
id operation
1 CREATE TABLE ... REPLACE SELECT, deleting a duplicate key
select * from t1_op_log;
operation
Before INSERT, new=CREATE TABLE ... REPLACE SELECT, deleting a duplicate key
Before DELETE, old=CREATE TABLE ... SELECT, inserting a new key
After DELETE, old=CREATE TABLE ... SELECT, inserting a new key
After INSERT, new=CREATE TABLE ... REPLACE SELECT, deleting a duplicate key
truncate t1;
truncate t1_op_log;
insert into t1 (id, operation)
select NULL, "INSERT ... SELECT, inserting a new key";
set @id=last_insert_id();
select * from t1;
id operation
1 INSERT ... SELECT, inserting a new key
select * from t1_op_log;
operation
Before INSERT, new=INSERT ... SELECT, inserting a new key
After INSERT, new=INSERT ... SELECT, inserting a new key
truncate t1_op_log;
insert into t1 (id, operation)
select @id,
"INSERT ... SELECT ... ON DUPLICATE KEY UPDATE, updating a duplicate"
on duplicate key update id=NULL,
operation="INSERT ... SELECT ... ON DUPLICATE KEY UPDATE, updating a duplicate";
select * from t1;
id operation
0 INSERT ... SELECT ... ON DUPLICATE KEY UPDATE, updating a duplicate
select * from t1_op_log;
operation
Before INSERT, new=INSERT ... SELECT ... ON DUPLICATE KEY UPDATE, updating a duplicate
Before UPDATE, new=INSERT ... SELECT ... ON DUPLICATE KEY UPDATE, updating a duplicate, old=INSERT ... SELECT, inserting a new key
After UPDATE, new=INSERT ... SELECT ... ON DUPLICATE KEY UPDATE, updating a duplicate, old=INSERT ... SELECT, inserting a new key
truncate t1;
truncate t1_op_log;
replace into t1 (id, operation)
select NULL, "REPLACE ... SELECT, inserting a new key";
set @id=last_insert_id();
select * from t1;
id operation
1 REPLACE ... SELECT, inserting a new key
select * from t1_op_log;
operation
Before INSERT, new=REPLACE ... SELECT, inserting a new key
After INSERT, new=REPLACE ... SELECT, inserting a new key
truncate t1_op_log;
replace into t1 (id, operation)
select @id, "REPLACE ... SELECT, deleting a duplicate";
select * from t1;
id operation
1 REPLACE ... SELECT, deleting a duplicate
select * from t1_op_log;
operation
Before INSERT, new=REPLACE ... SELECT, deleting a duplicate
Before DELETE, old=REPLACE ... SELECT, inserting a new key
After DELETE, old=REPLACE ... SELECT, inserting a new key
After INSERT, new=REPLACE ... SELECT, deleting a duplicate
truncate t1;
truncate t1_op_log;
insert into t1 (id, operation) values (1, "INSERT for multi-DELETE");
insert into t2 (id) values (1);
delete t1.*, t2.* from t1, t2 where t1.id=1;
select * from t1;
id operation
select * from t2;
id
select * from t1_op_log;
operation
Before INSERT, new=INSERT for multi-DELETE
After INSERT, new=INSERT for multi-DELETE
Before DELETE, old=INSERT for multi-DELETE
After DELETE, old=INSERT for multi-DELETE
truncate t1;
truncate t2;
truncate t1_op_log;
insert into t1 (id, operation) values (1, "INSERT for multi-UPDATE");
insert into t2 (id) values (1);
update t1, t2 set t1.id=2, operation="multi-UPDATE" where t1.id=1;
update t1, t2
set t2.id=3, operation="multi-UPDATE, SET for t2, but the trigger is fired" where t1.id=2;
select * from t1;
id operation
2 multi-UPDATE, SET for t2, but the trigger is fired
select * from t2;
id
3
select * from t1_op_log;
operation
Before INSERT, new=INSERT for multi-UPDATE
After INSERT, new=INSERT for multi-UPDATE
Before UPDATE, new=multi-UPDATE, old=INSERT for multi-UPDATE
After UPDATE, new=multi-UPDATE, old=INSERT for multi-UPDATE
Before UPDATE, new=multi-UPDATE, SET for t2, but the trigger is fired, old=multi-UPDATE
After UPDATE, new=multi-UPDATE, SET for t2, but the trigger is fired, old=multi-UPDATE
truncate table t1;
truncate table t2;
truncate table t1_op_log;
Now do the same but use a view instead of the base table.
insert into v1 (operation) values ("INSERT");
set @id=last_insert_id();
select * from t1;
id operation
1 INSERT
select * from t1_op_log;
operation
Before INSERT, new=INSERT
After INSERT, new=INSERT
truncate t1_op_log;
update v1 set operation="UPDATE" where id=@id;
select * from t1;
id operation
1 UPDATE
select * from t1_op_log;
operation
Before UPDATE, new=UPDATE, old=INSERT
After UPDATE, new=UPDATE, old=INSERT
truncate t1_op_log;
delete from v1 where id=@id;
select * from t1;
id operation
select * from t1_op_log;
operation
Before DELETE, old=UPDATE
After DELETE, old=UPDATE
truncate t1;
truncate t1_op_log;
insert into v1 (id, operation) values
(NULL, "INSERT ON DUPLICATE KEY UPDATE, inserting a new key")
on duplicate key update id=NULL, operation="Should never happen";
set @id=last_insert_id();
select * from t1;
id operation
1 INSERT ON DUPLICATE KEY UPDATE, inserting a new key
select * from t1_op_log;
operation
Before INSERT, new=INSERT ON DUPLICATE KEY UPDATE, inserting a new key
After INSERT, new=INSERT ON DUPLICATE KEY UPDATE, inserting a new key
truncate t1_op_log;
insert into v1 (id, operation) values
(@id, "INSERT ON DUPLICATE KEY UPDATE, the key value is the same")
on duplicate key update id=NULL,
operation="INSERT ON DUPLICATE KEY UPDATE, updating the duplicate";
select * from t1;
id operation
0 INSERT ON DUPLICATE KEY UPDATE, updating the duplicate
select * from t1_op_log;
operation
Before INSERT, new=INSERT ON DUPLICATE KEY UPDATE, the key value is the same
Before UPDATE, new=INSERT ON DUPLICATE KEY UPDATE, updating the duplicate, old=INSERT ON DUPLICATE KEY UPDATE, inserting a new key
After UPDATE, new=INSERT ON DUPLICATE KEY UPDATE, updating the duplicate, old=INSERT ON DUPLICATE KEY UPDATE, inserting a new key
truncate t1;
truncate t1_op_log;
replace into v1 values (NULL, "REPLACE, inserting a new key");
set @id=last_insert_id();
select * from t1;
id operation
1 REPLACE, inserting a new key
select * from t1_op_log;
operation
Before INSERT, new=REPLACE, inserting a new key
After INSERT, new=REPLACE, inserting a new key
truncate t1_op_log;
replace into v1 values (@id, "REPLACE, deleting the duplicate");
select * from t1;
id operation
1 REPLACE, deleting the duplicate
select * from t1_op_log;
operation
Before INSERT, new=REPLACE, deleting the duplicate
Before DELETE, old=REPLACE, inserting a new key
After DELETE, old=REPLACE, inserting a new key
After INSERT, new=REPLACE, deleting the duplicate
truncate t1;
truncate t1_op_log;
create table if not exists v1
select NULL, "CREATE TABLE ... SELECT, inserting a new key";
Warnings:
Note 1050 Table 'v1' already exists
set @id=last_insert_id();
select * from t1;
id operation
1 CREATE TABLE ... SELECT, inserting a new key
select * from t1_op_log;
operation
Before INSERT, new=CREATE TABLE ... SELECT, inserting a new key
After INSERT, new=CREATE TABLE ... SELECT, inserting a new key
truncate t1_op_log;
create table if not exists v1 replace
select @id, "CREATE TABLE ... REPLACE SELECT, deleting a duplicate key";
Warnings:
Note 1050 Table 'v1' already exists
select * from t1;
id operation
1 CREATE TABLE ... REPLACE SELECT, deleting a duplicate key
select * from t1_op_log;
operation
Before INSERT, new=CREATE TABLE ... REPLACE SELECT, deleting a duplicate key
Before DELETE, old=CREATE TABLE ... SELECT, inserting a new key
After DELETE, old=CREATE TABLE ... SELECT, inserting a new key
After INSERT, new=CREATE TABLE ... REPLACE SELECT, deleting a duplicate key
truncate t1;
truncate t1_op_log;
insert into v1 (id, operation)
select NULL, "INSERT ... SELECT, inserting a new key";
set @id=last_insert_id();
select * from t1;
id operation
1 INSERT ... SELECT, inserting a new key
select * from t1_op_log;
operation
Before INSERT, new=INSERT ... SELECT, inserting a new key
After INSERT, new=INSERT ... SELECT, inserting a new key
truncate t1_op_log;
insert into v1 (id, operation)
select @id,
"INSERT ... SELECT ... ON DUPLICATE KEY UPDATE, updating a duplicate"
on duplicate key update id=NULL,
operation="INSERT ... SELECT ... ON DUPLICATE KEY UPDATE, updating a duplicate";
select * from t1;
id operation
0 INSERT ... SELECT ... ON DUPLICATE KEY UPDATE, updating a duplicate
select * from t1_op_log;
operation
Before INSERT, new=INSERT ... SELECT ... ON DUPLICATE KEY UPDATE, updating a duplicate
Before UPDATE, new=INSERT ... SELECT ... ON DUPLICATE KEY UPDATE, updating a duplicate, old=INSERT ... SELECT, inserting a new key
After UPDATE, new=INSERT ... SELECT ... ON DUPLICATE KEY UPDATE, updating a duplicate, old=INSERT ... SELECT, inserting a new key
truncate t1;
truncate t1_op_log;
replace into v1 (id, operation)
select NULL, "REPLACE ... SELECT, inserting a new key";
set @id=last_insert_id();
select * from t1;
id operation
1 REPLACE ... SELECT, inserting a new key
select * from t1_op_log;
operation
Before INSERT, new=REPLACE ... SELECT, inserting a new key
After INSERT, new=REPLACE ... SELECT, inserting a new key
truncate t1_op_log;
replace into v1 (id, operation)
select @id, "REPLACE ... SELECT, deleting a duplicate";
select * from t1;
id operation
1 REPLACE ... SELECT, deleting a duplicate
select * from t1_op_log;
operation
Before INSERT, new=REPLACE ... SELECT, deleting a duplicate
Before DELETE, old=REPLACE ... SELECT, inserting a new key
After DELETE, old=REPLACE ... SELECT, inserting a new key
After INSERT, new=REPLACE ... SELECT, deleting a duplicate
truncate t1;
truncate t1_op_log;
insert into v1 (id, operation) values (1, "INSERT for multi-DELETE");
insert into t2 (id) values (1);
delete v1.*, t2.* from v1, t2 where v1.id=1;
select * from t1;
id operation
select * from t2;
id
select * from t1_op_log;
operation
Before INSERT, new=INSERT for multi-DELETE
After INSERT, new=INSERT for multi-DELETE
Before DELETE, old=INSERT for multi-DELETE
After DELETE, old=INSERT for multi-DELETE
truncate t1;
truncate t2;
truncate t1_op_log;
insert into v1 (id, operation) values (1, "INSERT for multi-UPDATE");
insert into t2 (id) values (1);
update v1, t2 set v1.id=2, operation="multi-UPDATE" where v1.id=1;
update v1, t2
set t2.id=3, operation="multi-UPDATE, SET for t2, but the trigger is fired" where v1.id=2;
select * from t1;
id operation
2 multi-UPDATE, SET for t2, but the trigger is fired
select * from t2;
id
3
select * from t1_op_log;
operation
Before INSERT, new=INSERT for multi-UPDATE
After INSERT, new=INSERT for multi-UPDATE
Before UPDATE, new=multi-UPDATE, old=INSERT for multi-UPDATE
After UPDATE, new=multi-UPDATE, old=INSERT for multi-UPDATE
Before UPDATE, new=multi-UPDATE, SET for t2, but the trigger is fired, old=multi-UPDATE
After UPDATE, new=multi-UPDATE, SET for t2, but the trigger is fired, old=multi-UPDATE
drop view v1;
drop table t1, t2, t1_op_log;
End of 5.0 tests
drop table if exists table_25411_a;
drop table if exists table_25411_b;

10
mysql-test/t/information_schema.test
View File

@ -703,7 +703,7 @@ drop table t1;
#
# Bug #9846 Inappropriate error displayed while dropping table from 'INFORMATION_SCHEMA'
#
--error 1044
--error ER_PARSE_ERROR
alter database information_schema;
--error 1044
drop database information_schema;
@ -1039,6 +1039,14 @@ delete from v1;
drop view v1,v2;
drop table t1,t2;
#
# Bug#25859 ALTER DATABASE works w/o parameters
#
--error ER_PARSE_ERROR
alter database;
--error ER_PARSE_ERROR
alter database test;
--echo End of 5.0 tests.
#
# Show engines

72
mysql-test/t/query_cache.test
View File

@ -1057,6 +1057,78 @@ drop table t1;
set GLOBAL query_cache_size= default;
#
# Bug #28249 Query Cache returns wrong result with concurrent insert / certain lock
#
--echo Bug#28249 Query Cache returns wrong result with concurrent insert/ certain lock
connect (user1,localhost,root,,test,,);
connect (user2,localhost,root,,test,,);
connect (user3,localhost,root,,test,,);
connection user1;
set GLOBAL query_cache_type=1;
set GLOBAL query_cache_limit=10000;
set GLOBAL query_cache_min_res_unit=0;
set GLOBAL query_cache_size= 100000;
flush tables;
--disable_warnings
drop table if exists t1, t2;
--enable_warnings
create table t1 (a int);
create table t2 (a int);
insert into t1 values (1),(2),(3);
connection user2;
--echo Locking table T2 with a write lock.
lock table t2 write;
connection user1;
--echo Select blocked by write lock.
--send select *, (select count(*) from t2) from t1;
--echo Sleeing is ok, because selecting should be done very fast.
sleep 5;
connection user3;
--echo Inserting into table T1.
insert into t1 values (4);
connection user2;
--echo Unlocking the tables.
unlock tables;
connection user1;
--echo Collecting result from previously blocked select.
#
# Since the lock ordering rule in thr_multi_lock depends on
# pointer values, from execution to execution we might have
# different lock order, and therefore, sometimes lock t1 and block
# on t2, and sometimes block on t2 right away. In the second case,
# the following insert succeeds, and only then this select can
# proceed, and we actually test nothing, as the very first select
# returns 4 rows right away.
# It's fine to have a test case that covers the problematic area
# at least once in a while.
# We, however, need to disable the result log here to make the
# test repeatable.
--disable_result_log
--reap
--enable_result_log
--echo Next select should contain 4 rows, as the insert is long finished.
select *, (select count(*) from t2) from t1;
reset query cache;
select *, (select count(*) from t2) from t1;
drop table t1,t2;
connection default;
disconnect user1;
disconnect user2;
disconnect user3;
set GLOBAL query_cache_type=default;
set GLOBAL query_cache_limit=default;
set GLOBAL query_cache_min_res_unit=default;
set GLOBAL query_cache_size=default;
# End of 5.0 tests

37
mysql-test/t/sp.test
View File

@ -7250,6 +7250,43 @@ DROP VIEW v1;
DROP FUNCTION metered;
DROP TABLE t1;
#
# Bug#28551 "The warning 'No database selected' is reported when calling
# stored procedures"
#
--disable_warnings
drop database if exists mysqltest_db1;
--enable_warnings
create database mysqltest_db1;
create procedure mysqltest_db1.sp_bug28551() begin end;
call mysqltest_db1.sp_bug28551();
show warnings;
drop database mysqltest_db1;
#
# Bug#29050 Creation of a legal stored procedure fails if a database is not
# selected prior
#
--disable_warnings
drop database if exists mysqltest_db1;
drop table if exists test.t1;
--enable_warnings
create database mysqltest_db1;
use mysqltest_db1;
# For the sake of its side effect
drop database mysqltest_db1;
# Now we have no current database selected.
create table test.t1 (id int);
insert into test.t1 (id) values (1);
delimiter //;
create procedure test.sp_bug29050() begin select * from t1; end//
delimiter ;//
show warnings;
call test.sp_bug29050();
show warnings;
# Restore the old current database
use test;
drop procedure sp_bug29050;
drop table t1;
#
# Bug#25411 (trigger code truncated)

82
mysql-test/t/trigger-trans.test
View File

@ -49,4 +49,84 @@ insert into t1 values ('The Pie', 50, 1, 1);
select * from t1;
drop table t1;
# End of 5.0 tests
--echo
--echo Bug#26141 mixing table types in trigger causes full
--echo table lock on innodb table
--echo
--echo Ensure we do not open and lock tables for the triggers we do not
--echo fire.
--echo
--disable_warnings
drop table if exists t1, t2, t3;
drop trigger if exists trg_bug26141_au;
drop trigger if exists trg_bug26141_ai;
--enable_warnings
# Note, for InnoDB to allow concurrent UPDATE and INSERT the
# table must have a unique key.
create table t1 (c int primary key) engine=innodb;
create table t2 (c int) engine=myisam;
create table t3 (c int) engine=myisam;
insert into t1 (c) values (1);
delimiter |;
create trigger trg_bug26141_ai after insert on t1
for each row
begin
insert into t2 (c) values (1);
# We need the 'sync' lock to synchronously wait in connection 2 till
# the moment when the trigger acquired all the locks.
select release_lock("lock_bug26141_sync") into @a;
# 1000 is time in seconds of lock wait timeout -- this is a way
# to cause a manageable sleep up to 1000 seconds
select get_lock("lock_bug26141_wait", 1000) into @a;
end|
create trigger trg_bug26141_au after update on t1
for each row
begin
insert into t3 (c) values (1);
end|
delimiter ;|
# Establish an alternative connection.
--connect (connection_aux,localhost,root,,test,,)
--connect (connection_update,localhost,root,,test,,)
connection connection_aux;
# Lock the wait lock, it must not be locked, so specify zero timeout.
select get_lock("lock_bug26141_wait", 0);
#
connection default;
#
# Run the trigger synchronously
#
select get_lock("lock_bug26141_sync", /* must not be priorly locked */ 0);
# Will acquire the table level locks, perform the insert into t2,
# release the sync lock and block on the wait lock.
send insert into t1 (c) values (2);
connection connection_update;
# Wait for the trigger to acquire its locks and unlock the sync lock.
select get_lock("lock_bug26141_sync", 1000);
#
# This must continue: after the fix for the bug, we do not
# open tables for t2, and with c=4 innobase allows the update
# to run concurrently with insert.
update t1 set c=3 where c=1;
select release_lock("lock_bug26141_sync");
connection connection_aux;
select release_lock("lock_bug26141_wait");
connection default;
reap;
select * from t1;
select * from t2;
select * from t3;
# Drops the trigger as well.
drop table t1, t2, t3;
disconnect connection_update;
disconnect connection_aux;
--echo End of 5.0 tests

369
mysql-test/t/trigger.test
View File

@ -406,7 +406,7 @@ create table mysqltest.t1 (i int);
--error ER_TRG_IN_WRONG_SCHEMA
create trigger trg1 before insert on mysqltest.t1 for each row set @a:= 1;
use mysqltest;
--error ER_TRG_IN_WRONG_SCHEMA
--error ER_NO_SUCH_TABLE
create trigger test.trg1 before insert on t1 for each row set @a:= 1;
drop database mysqltest;
use test;
@ -1040,7 +1040,7 @@ drop table t1;
connection addconwithoutdb;
--error ER_NO_DB_ERROR
create trigger t1_bi before insert on test.t1 for each row set @a:=0;
--error ER_NO_DB_ERROR
--error ER_NO_SUCH_TABLE
create trigger test.t1_bi before insert on t1 for each row set @a:=0;
--error ER_NO_DB_ERROR
drop trigger t1_bi;
@ -1828,7 +1828,372 @@ DROP TRIGGER t1_test;
DROP TABLE t1,t2;
SET SESSION LOW_PRIORITY_UPDATES=DEFAULT;
SET GLOBAL LOW_PRIORITY_UPDATES=DEFAULT;
--echo
--echo Bug#28502 Triggers that update another innodb table will block
--echo on X lock unnecessarily
--echo
--echo Ensure we do not open and lock tables for triggers we do not fire.
--echo
--disable_warnings
drop table if exists t1, t2;
drop trigger if exists trg_bug28502_au;
--enable_warnings
create table t1 (id int, count int);
create table t2 (id int);
delimiter |;
create trigger trg_bug28502_au before update on t2
for each row
begin
if (new.id is not null) then
update t1 set count= count + 1 where id = old.id;
end if;
end|
delimiter ;|
insert into t1 (id, count) values (1, 0);
lock table t1 write;
--connect (connection_insert, localhost, root, , test, , )
connection connection_insert;
# Is expected to pass.
insert into t2 set id=1;
connection default;
unlock tables;
update t2 set id=1 where id=1;
select * from t1;
select * from t2;
# Will drop the trigger
drop table t1, t2;
disconnect connection_insert;
--echo
--echo Additionally, provide test coverage for triggers and
--echo all MySQL data changing commands.
--echo
--disable_warnings
drop table if exists t1, t2, t1_op_log;
drop view if exists v1;
drop trigger if exists trg_bug28502_bi;
drop trigger if exists trg_bug28502_ai;
drop trigger if exists trg_bug28502_bu;
drop trigger if exists trg_bug28502_au;
drop trigger if exists trg_bug28502_bd;
drop trigger if exists trg_bug28502_ad;
--enable_warnings
create table t1 (id int primary key auto_increment, operation varchar(255));
create table t2 (id int primary key);
create table t1_op_log(operation varchar(255));
create view v1 as select * from t1;
create trigger trg_bug28502_bi before insert on t1
for each row
insert into t1_op_log (operation)
values (concat("Before INSERT, new=", new.operation));
create trigger trg_bug28502_ai after insert on t1
for each row
insert into t1_op_log (operation)
values (concat("After INSERT, new=", new.operation));
create trigger trg_bug28502_bu before update on t1
for each row
insert into t1_op_log (operation)
values (concat("Before UPDATE, new=", new.operation,
", old=", old.operation));
create trigger trg_bug28502_au after update on t1
for each row
insert into t1_op_log (operation)
values (concat("After UPDATE, new=", new.operation,
", old=", old.operation));
create trigger trg_bug28502_bd before delete on t1
for each row
insert into t1_op_log (operation)
values (concat("Before DELETE, old=", old.operation));
create trigger trg_bug28502_ad after delete on t1
for each row
insert into t1_op_log (operation)
values (concat("After DELETE, old=", old.operation));
insert into t1 (operation) values ("INSERT");
set @id=last_insert_id();
select * from t1;
select * from t1_op_log;
truncate t1_op_log;
update t1 set operation="UPDATE" where id=@id;
select * from t1;
select * from t1_op_log;
truncate t1_op_log;
delete from t1 where id=@id;
select * from t1;
select * from t1_op_log;
truncate t1;
truncate t1_op_log;
insert into t1 (id, operation) values
(NULL, "INSERT ON DUPLICATE KEY UPDATE, inserting a new key")
on duplicate key update id=NULL, operation="Should never happen";
set @id=last_insert_id();
select * from t1;
select * from t1_op_log;
truncate t1_op_log;
insert into t1 (id, operation) values
(@id, "INSERT ON DUPLICATE KEY UPDATE, the key value is the same")
on duplicate key update id=NULL,
operation="INSERT ON DUPLICATE KEY UPDATE, updating the duplicate";
select * from t1;
select * from t1_op_log;
truncate t1;
truncate t1_op_log;
replace into t1 values (NULL, "REPLACE, inserting a new key");
set @id=last_insert_id();
select * from t1;
select * from t1_op_log;
truncate t1_op_log;
replace into t1 values (@id, "REPLACE, deleting the duplicate");
select * from t1;
select * from t1_op_log;
truncate t1;
truncate t1_op_log;
create table if not exists t1
select NULL, "CREATE TABLE ... SELECT, inserting a new key";
set @id=last_insert_id();
select * from t1;
select * from t1_op_log;
truncate t1_op_log;
create table if not exists t1 replace
select @id, "CREATE TABLE ... REPLACE SELECT, deleting a duplicate key";
select * from t1;
select * from t1_op_log;
truncate t1;
truncate t1_op_log;
insert into t1 (id, operation)
select NULL, "INSERT ... SELECT, inserting a new key";
set @id=last_insert_id();
select * from t1;
select * from t1_op_log;
truncate t1_op_log;
insert into t1 (id, operation)
select @id,
"INSERT ... SELECT ... ON DUPLICATE KEY UPDATE, updating a duplicate"
on duplicate key update id=NULL,
operation="INSERT ... SELECT ... ON DUPLICATE KEY UPDATE, updating a duplicate";
select * from t1;
select * from t1_op_log;
truncate t1;
truncate t1_op_log;
replace into t1 (id, operation)
select NULL, "REPLACE ... SELECT, inserting a new key";
set @id=last_insert_id();
select * from t1;
select * from t1_op_log;
truncate t1_op_log;
replace into t1 (id, operation)
select @id, "REPLACE ... SELECT, deleting a duplicate";
select * from t1;
select * from t1_op_log;
truncate t1;
truncate t1_op_log;
insert into t1 (id, operation) values (1, "INSERT for multi-DELETE");
insert into t2 (id) values (1);
delete t1.*, t2.* from t1, t2 where t1.id=1;
select * from t1;
select * from t2;
select * from t1_op_log;
truncate t1;
truncate t2;
truncate t1_op_log;
insert into t1 (id, operation) values (1, "INSERT for multi-UPDATE");
insert into t2 (id) values (1);
update t1, t2 set t1.id=2, operation="multi-UPDATE" where t1.id=1;
update t1, t2
set t2.id=3, operation="multi-UPDATE, SET for t2, but the trigger is fired" where t1.id=2;
select * from t1;
select * from t2;
select * from t1_op_log;
truncate table t1;
truncate table t2;
truncate table t1_op_log;
--echo
--echo Now do the same but use a view instead of the base table.
--echo
insert into v1 (operation) values ("INSERT");
set @id=last_insert_id();
select * from t1;
select * from t1_op_log;
truncate t1_op_log;
update v1 set operation="UPDATE" where id=@id;
select * from t1;
select * from t1_op_log;
truncate t1_op_log;
delete from v1 where id=@id;
select * from t1;
select * from t1_op_log;
truncate t1;
truncate t1_op_log;
insert into v1 (id, operation) values
(NULL, "INSERT ON DUPLICATE KEY UPDATE, inserting a new key")
on duplicate key update id=NULL, operation="Should never happen";
set @id=last_insert_id();
select * from t1;
select * from t1_op_log;
truncate t1_op_log;
insert into v1 (id, operation) values
(@id, "INSERT ON DUPLICATE KEY UPDATE, the key value is the same")
on duplicate key update id=NULL,
operation="INSERT ON DUPLICATE KEY UPDATE, updating the duplicate";
select * from t1;
select * from t1_op_log;
truncate t1;
truncate t1_op_log;
replace into v1 values (NULL, "REPLACE, inserting a new key");
set @id=last_insert_id();
select * from t1;
select * from t1_op_log;
truncate t1_op_log;
replace into v1 values (@id, "REPLACE, deleting the duplicate");
select * from t1;
select * from t1_op_log;
truncate t1;
truncate t1_op_log;
create table if not exists v1
select NULL, "CREATE TABLE ... SELECT, inserting a new key";
set @id=last_insert_id();
select * from t1;
select * from t1_op_log;
truncate t1_op_log;
create table if not exists v1 replace
select @id, "CREATE TABLE ... REPLACE SELECT, deleting a duplicate key";
select * from t1;
select * from t1_op_log;
truncate t1;
truncate t1_op_log;
insert into v1 (id, operation)
select NULL, "INSERT ... SELECT, inserting a new key";
set @id=last_insert_id();
select * from t1;
select * from t1_op_log;
truncate t1_op_log;
insert into v1 (id, operation)
select @id,
"INSERT ... SELECT ... ON DUPLICATE KEY UPDATE, updating a duplicate"
on duplicate key update id=NULL,
operation="INSERT ... SELECT ... ON DUPLICATE KEY UPDATE, updating a duplicate";
select * from t1;
select * from t1_op_log;
truncate t1;
truncate t1_op_log;
replace into v1 (id, operation)
select NULL, "REPLACE ... SELECT, inserting a new key";
set @id=last_insert_id();
select * from t1;
select * from t1_op_log;
truncate t1_op_log;
replace into v1 (id, operation)
select @id, "REPLACE ... SELECT, deleting a duplicate";
select * from t1;
select * from t1_op_log;
truncate t1;
truncate t1_op_log;
insert into v1 (id, operation) values (1, "INSERT for multi-DELETE");
insert into t2 (id) values (1);
delete v1.*, t2.* from v1, t2 where v1.id=1;
select * from t1;
select * from t2;
select * from t1_op_log;
truncate t1;
truncate t2;
truncate t1_op_log;
insert into v1 (id, operation) values (1, "INSERT for multi-UPDATE");
insert into t2 (id) values (1);
update v1, t2 set v1.id=2, operation="multi-UPDATE" where v1.id=1;
update v1, t2
set t2.id=3, operation="multi-UPDATE, SET for t2, but the trigger is fired" where v1.id=2;
select * from t1;
select * from t2;
select * from t1_op_log;
drop view v1;
drop table t1, t2, t1_op_log;
#
# TODO: test LOAD DATA INFILE
--echo End of 5.0 tests
#

45
sql/handler.h
View File

@ -1639,16 +1639,49 @@ public:
/* Type of table for caching query */
virtual uint8 table_cache_type() { return HA_CACHE_TBL_NONTRANSACT; }
/* ask handler about permission to cache table when query is to be cached */
/**
@brief Register a named table with a call back function to the query cache.
@param thd The thread handle
@param table_key A pointer to the table name in the table cache
@param key_length The length of the table name
@param[out] engine_callback The pointer to the storage engine call back
function
@param[out] engine_data Storage engine specific data which could be
anything
This method offers the storage engine, the possibility to store a reference
to a table name which is going to be used with query cache.
The method is called each time a statement is written to the cache and can
be used to verify if a specific statement is cachable. It also offers
the possibility to register a generic (but static) call back function which
is called each time a statement is matched against the query cache.
@note If engine_data supplied with this function is different from
engine_data supplied with the callback function, and the callback returns
FALSE, a table invalidation on the current table will occur.
@return Upon success the engine_callback will point to the storage engine
call back function, if any, and engine_data will point to any storage
engine data used in the specific implementation.
@retval TRUE Success
@retval FALSE The specified table or current statement should not be
cached
*/
virtual my_bool register_query_cache_table(THD *thd, char *table_key,
uint key_length,
qc_engine_callback
*engine_callback,
ulonglong *engine_data)
uint key_length,
qc_engine_callback
*engine_callback,
ulonglong *engine_data)
{
*engine_callback= 0;
return 1;
return TRUE;
}
/*
RETURN
true Primary key (if there is one) is clustered key covering all fields

2
sql/item.cc
View File

@ -5899,7 +5899,7 @@ bool Item_insert_value::fix_fields(THD *thd, Item **items)
if (!arg->fixed)
{
bool res;
st_table_list *orig_next_table= context->last_name_resolution_table;
TABLE_LIST *orig_next_table= context->last_name_resolution_table;
context->last_name_resolution_table= context->first_name_resolution_table;
res= arg->fix_fields(thd, &arg);
context->last_name_resolution_table= orig_next_table;

10
sql/item.h
View File

@ -19,7 +19,7 @@
#endif
class Protocol;
struct st_table_list;
struct TABLE_LIST;
void item_init(void); /* Init item functions */
class Item_field;
@ -2442,14 +2442,6 @@ enum trg_action_time_type
TRG_ACTION_BEFORE= 0, TRG_ACTION_AFTER= 1, TRG_ACTION_MAX
};
/*
Event on which trigger is invoked.
*/
enum trg_event_type
{
TRG_EVENT_INSERT= 0 , TRG_EVENT_UPDATE= 1, TRG_EVENT_DELETE= 2, TRG_EVENT_MAX
};
class Table_triggers_list;
/*

6
sql/mysql_priv.h
View File

@ -531,9 +531,9 @@ void debug_sync_point(const char* lock_name, uint lock_timeout);
#define SHOW_LOG_STATUS_FREE "FREE"
#define SHOW_LOG_STATUS_INUSE "IN USE"
struct st_table_list;
struct TABLE_LIST;
class String;
void view_store_options(THD *thd, st_table_list *table, String *buff);
void view_store_options(THD *thd, TABLE_LIST *table, String *buff);
/* Options to add_table_to_list() */
#define TL_OPTION_UPDATING 1
@ -1372,7 +1372,7 @@ bool close_thread_table(THD *thd, TABLE **table_ptr);
void close_temporary_tables(THD *thd);
void close_tables_for_reopen(THD *thd, TABLE_LIST **tables);
TABLE_LIST *find_table_in_list(TABLE_LIST *table,
st_table_list *TABLE_LIST::*link,
TABLE_LIST *TABLE_LIST::*link,
const char *db_name,
const char *table_name);
TABLE_LIST *unique_table(THD *thd, TABLE_LIST *table, TABLE_LIST *table_list,

63
sql/sp.cc
View File

@ -602,6 +602,15 @@ db_load_routine(THD *thd, int type, sp_name *name, sp_head **sphp,
(*sphp)->set_info(created, modified, &chistics, sql_mode);
(*sphp)->set_creation_ctx(creation_ctx);
(*sphp)->optimize();
/*
Not strictly necessary to invoke this method here, since we know
that we've parsed CREATE PROCEDURE/FUNCTION and not an
UPDATE/DELETE/INSERT/REPLACE/LOAD/CREATE TABLE, but we try to
maintain the invariant that this method is called for each
distinct statement, in case its logic is extended with other
types of analyses in future.
*/
newlex.set_trg_event_type_for_tables();
}
}
@ -1912,32 +1921,40 @@ sp_cache_routines_and_add_tables_for_triggers(THD *thd, LEX *lex,
TABLE_LIST *table)
{
int ret= 0;
Table_triggers_list *triggers= table->table->triggers;
if (add_used_routine(lex, thd->stmt_arena, &triggers->sroutines_key,
table->belong_to_view))
Sroutine_hash_entry **last_cached_routine_ptr=
(Sroutine_hash_entry **)lex->sroutines_list.next;
if (static_cast<int>(table->lock_type) >=
static_cast<int>(TL_WRITE_ALLOW_WRITE))
{
Sroutine_hash_entry **last_cached_routine_ptr=
(Sroutine_hash_entry **)lex->sroutines_list.next;
for (int i= 0; i < (int)TRG_EVENT_MAX; i++)
{
for (int j= 0; j < (int)TRG_ACTION_MAX; j++)
if (table->trg_event_map &
static_cast<uint8>(1 << static_cast<int>(i)))
{
sp_head *trigger_body= triggers->bodies[i][j];
if (trigger_body)
for (int j= 0; j < (int)TRG_ACTION_MAX; j++)
{
(void)trigger_body->
add_used_tables_to_table_list(thd, &lex->query_tables_last,
table->belong_to_view);
sp_update_stmt_used_routines(thd, lex,
&trigger_body->m_sroutines,
table->belong_to_view);
trigger_body->propagate_attributes(lex);
/* We can have only one trigger per action type currently */
sp_head *trigger= table->table->triggers->bodies[i][j];
if (trigger &&
add_used_routine(lex, thd->stmt_arena, &trigger->m_sroutines_key,
table->belong_to_view))
{
trigger->add_used_tables_to_table_list(thd, &lex->query_tables_last,
table->belong_to_view);
trigger->propagate_attributes(lex);
sp_update_stmt_used_routines(thd, lex,
&trigger->m_sroutines,
table->belong_to_view);
}
}
}
}
ret= sp_cache_routines_and_add_tables_aux(thd, lex,
*last_cached_routine_ptr, FALSE);
}
ret= sp_cache_routines_and_add_tables_aux(thd, lex,
*last_cached_routine_ptr,
FALSE, NULL);
return ret;
}
@ -2044,15 +2061,11 @@ sp_use_new_db(THD *thd, LEX_STRING new_db, LEX_STRING *old_db,
DBUG_PRINT("enter", ("newdb: %s", new_db.str));
/*
Set new_db to an empty string if it's NULL, because mysql_change_db
requires a non-NULL argument.
new_db.str can be NULL only if we're restoring the old database after
execution of a stored procedure and there were no current database
selected. The stored procedure itself must always have its database
initialized.
A stored routine always belongs to some database. The
old database (old_db) might be NULL, but to restore the
old database we will use mysql_change_db.
*/
if (new_db.str == NULL)
new_db.str= empty_c_string;
DBUG_ASSERT(new_db.str && new_db.length);
if (thd->db)
{

53
sql/sp_head.cc
View File

@ -512,12 +512,35 @@ sp_head::init(LEX *lex)
*/
lex->trg_table_fields.empty();
my_init_dynamic_array(&m_instr, sizeof(sp_instr *), 16, 8);
m_param_begin= m_param_end= m_body_begin= 0;
m_qname.str= m_db.str= m_name.str= m_params.str=
m_body.str= m_defstr.str= 0;
m_qname.length= m_db.length= m_name.length= m_params.length=
m_body.length= m_defstr.length= 0;
m_param_begin= NULL;
m_param_end= NULL;
m_body_begin= NULL ;
m_qname.str= NULL;
m_qname.length= 0;
m_db.str= NULL;
m_db.length= 0;
m_name.str= NULL;
m_name.length= 0;
m_params.str= NULL;
m_params.length= 0;
m_body.str= NULL;
m_body.length= 0;
m_defstr.str= NULL;
m_defstr.length= 0;
m_sroutines_key.str= NULL;
m_sroutines_key.length= 0;
m_return_field_def.charset= NULL;
DBUG_VOID_RETURN;
}
@ -543,9 +566,14 @@ sp_head::init_sp_name(THD *thd, sp_name *spname)
if (spname->m_qname.length == 0)
spname->init_qname(thd);
m_qname.length= spname->m_qname.length;
m_qname.str= strmake_root(thd->mem_root, spname->m_qname.str,
m_qname.length);
m_sroutines_key.length= spname->m_sroutines_key.length;
m_sroutines_key.str= memdup_root(thd->mem_root,
spname->m_sroutines_key.str,
spname->m_sroutines_key.length + 1);
m_sroutines_key.str[0]= static_cast<char>(m_type);
m_qname.length= m_sroutines_key.length - 1;
m_qname.str= m_sroutines_key.str + 1;
DBUG_VOID_RETURN;
}
@ -1924,8 +1952,11 @@ sp_head::restore_lex(THD *thd)
{
DBUG_ENTER("sp_head::restore_lex");
LEX *sublex= thd->lex;
LEX *oldlex= (LEX *)m_lex.pop();
LEX *oldlex;
sublex->set_trg_event_type_for_tables();
oldlex= (LEX *)m_lex.pop();
if (! oldlex)
return; // Nothing to restore
@ -3545,6 +3576,7 @@ typedef struct st_sp_table
thr_lock_type lock_type; /* lock type used for prelocking */
uint lock_count;
uint query_lock_count;
uint8 trg_event_map;
} SP_TABLE;
uchar *
@ -3631,6 +3663,7 @@ sp_head::merge_table_list(THD *thd, TABLE_LIST *table, LEX *lex_for_tmp_check)
tab->query_lock_count++;
if (tab->query_lock_count > tab->lock_count)
tab->lock_count++;
tab->trg_event_map|= table->trg_event_map;
}
else
{
@ -3652,6 +3685,7 @@ sp_head::merge_table_list(THD *thd, TABLE_LIST *table, LEX *lex_for_tmp_check)
tab->db_length= table->db_length;
tab->lock_type= table->lock_type;
tab->lock_count= tab->query_lock_count= 1;
tab->trg_event_map= table->trg_event_map;
my_hash_insert(&m_sptabs, (uchar *)tab);
}
}
@ -3729,6 +3763,7 @@ sp_head::add_used_tables_to_table_list(THD *thd,
table->cacheable_table= 1;
table->prelocking_placeholder= 1;
table->belong_to_view= belong_to_view;
table->trg_event_map= stab->trg_event_map;
/* Everyting else should be zeroed */

6
sql/sp_head.h
View File

@ -184,6 +184,12 @@ public:
st_sp_chistics *m_chistics;
ulong m_sql_mode; // For SHOW CREATE and execution
LEX_STRING m_qname; // db.name
/**
Key representing routine in the set of stored routines used by statement.
[routine_type]db.name\0
@sa sp_name::m_sroutines_key
*/
LEX_STRING m_sroutines_key;
LEX_STRING m_db;
LEX_STRING m_name;
LEX_STRING m_params;

2
sql/sql_base.cc
View File

@ -1476,7 +1476,7 @@ void close_temporary_tables(THD *thd)
*/
TABLE_LIST *find_table_in_list(TABLE_LIST *table,
st_table_list *TABLE_LIST::*link,
TABLE_LIST *TABLE_LIST::*link,
const char *db_name,
const char *table_name)
{

8
sql/sql_db.cc
View File

@ -1397,10 +1397,10 @@ bool mysql_change_db(THD *thd, const LEX_STRING *new_db_name, bool force_switch)
{
if (force_switch)
{
push_warning_printf(thd, MYSQL_ERROR::WARN_LEVEL_NOTE,
ER_NO_DB_ERROR, ER(ER_NO_DB_ERROR));
/* Change db to NULL. */
/*
This can only happen when we restore the old db in THD after
execution of a routine is complete. Change db to NULL.
*/
mysql_change_db_impl(thd, NULL, 0, thd->variables.collation_server);

60
sql/sql_lex.cc
View File

@ -2297,7 +2297,7 @@ bool st_lex::need_correct_ident()
VIEW_CHECK_CASCADED CHECK OPTION CASCADED
*/
uint8 st_lex::get_effective_with_check(st_table_list *view)
uint8 st_lex::get_effective_with_check(TABLE_LIST *view)
{
if (view->select_lex->master_unit() == &unit &&
which_check_option_applicable())
@ -2306,6 +2306,43 @@ uint8 st_lex::get_effective_with_check(st_table_list *view)
}
/**
This method should be called only during parsing.
It is aware of compound statements (stored routine bodies)
and will initialize the destination with the default
database of the stored routine, rather than the default
database of the connection it is parsed in.
E.g. if one has no current database selected, or current database
set to 'bar' and then issues:
CREATE PROCEDURE foo.p1() BEGIN SELECT * FROM t1 END//
t1 is meant to refer to foo.t1, not to bar.t1.
This method is needed to support this rule.
@return TRUE in case of error (parsing should be aborted, FALSE in
case of success
*/
bool
st_lex::copy_db_to(char **p_db, uint *p_db_length) const
{
if (sphead)
{
DBUG_ASSERT(sphead->m_db.str && sphead->m_db.length);
/*
It is safe to assign the string by-pointer, both sphead and
its statements reside in the same memory root.
*/
*p_db= sphead->m_db.str;
if (p_db_length)
*p_db_length= sphead->m_db.length;
return FALSE;
}
return thd->copy_db_to(p_db, p_db_length);
}
/*
initialize limit counters
@ -2329,6 +2366,27 @@ void st_select_lex_unit::set_limit(SELECT_LEX *sl)
}
/**
Update the parsed tree with information about triggers that
may be fired when executing this statement.
*/
void st_lex::set_trg_event_type_for_tables()
{
/*
Do not iterate over sub-selects, only the tables in the outermost
SELECT_LEX can be modified, if any.
*/
TABLE_LIST *tables= select_lex.get_table_list();
while (tables)
{
tables->set_trg_event_type(this);
tables= tables->next_local;
}
}
/*
Unlink the first table from the global table list and the first table from
outer select (lex->select_lex) local list

6
sql/sql_lex.h
View File

@ -1732,6 +1732,8 @@ typedef struct st_lex : public Query_tables_list
un->uncacheable|= cause;
}
}
void set_trg_event_type_for_tables();
TABLE_LIST *unlink_first_table(bool *link_to_local);
void link_first_table_back(TABLE_LIST *first, bool link_to_local);
void first_lists_tables_same();
@ -1741,7 +1743,7 @@ typedef struct st_lex : public Query_tables_list
bool can_not_use_merged();
bool only_view_structure();
bool need_correct_ident();
uint8 get_effective_with_check(st_table_list *view);
uint8 get_effective_with_check(TABLE_LIST *view);
/*
Is this update command where 'WHITH CHECK OPTION' clause is important
@ -1780,6 +1782,8 @@ typedef struct st_lex : public Query_tables_list
context_stack.pop();
}
bool copy_db_to(char **p_db, uint *p_db_length) const;
Name_resolution_context *current_context()
{
return context_stack.head();

7
sql/sql_parse.cc
View File

@ -5392,8 +5392,9 @@ void mysql_parse(THD *thd, const char *inBuf, uint length,
(thd->query_length= (ulong)(*found_semicolon - thd->query)))
thd->query_length--;
/* Actually execute the query */
mysql_execute_command(thd);
query_cache_end_of_result(thd);
lex->set_trg_event_type_for_tables();
mysql_execute_command(thd);
query_cache_end_of_result(thd);
}
}
}
@ -5680,7 +5681,7 @@ TABLE_LIST *st_select_lex::add_table_to_list(THD *thd,
ptr->db= table->db.str;
ptr->db_length= table->db.length;
}
else if (thd->copy_db_to(&ptr->db, &ptr->db_length))
else if (lex->copy_db_to(&ptr->db, &ptr->db_length))
DBUG_RETURN(0);
ptr->alias= alias_str;

59
sql/sql_prepare.cc
View File

@ -1941,13 +1941,6 @@ void mysql_stmt_prepare(THD *thd, const char *packet, uint packet_length)
/* Statement map deletes statement on erase */
thd->stmt_map.erase(stmt);
}
else
{
const char *format= "[%lu] %.*b";
general_log_print(thd, COM_STMT_PREPARE, format, stmt->id,
stmt->query_length, stmt->query);
}
/* check_prepared_statemnt sends the metadata packet in case of success */
DBUG_VOID_RETURN;
}
@ -2330,12 +2323,6 @@ void mysql_stmt_execute(THD *thd, char *packet_arg, uint packet_length)
test(flags & (ulong) CURSOR_TYPE_READ_ONLY));
if (!(specialflag & SPECIAL_NO_PRIOR))
my_pthread_setprio(pthread_self(), WAIT_PRIOR);
if (error == 0)
{
const char *format= "[%lu] %.*b";
general_log_print(thd, COM_STMT_EXECUTE, format, stmt->id,
thd->query_length, thd->query);
}
DBUG_VOID_RETURN;
set_params_data_err:
@ -2880,6 +2867,7 @@ bool Prepared_statement::prepare(const char *packet, uint packet_len)
error= parse_sql(thd, &lip, NULL) ||
thd->net.report_error ||
init_param_array(this);
lex->set_trg_event_type_for_tables();
/*
While doing context analysis of the query (in check_prepared_statement)
@ -2929,6 +2917,29 @@ bool Prepared_statement::prepare(const char *packet, uint packet_len)
init_stmt_after_parse(lex);
state= Query_arena::PREPARED;
flags&= ~ (uint) IS_IN_USE;
/*
Log COM_EXECUTE to the general log. Note, that in case of SQL
prepared statements this causes two records to be output:
Query PREPARE stmt from @user_variable
Prepare <statement SQL text>
This is considered user-friendly, since in the
second log entry we output the actual statement text.
Do not print anything if this is an SQL prepared statement and
we're inside a stored procedure (also called Dynamic SQL) --
sub-statements inside stored procedures are not logged into
the general log.
*/
if (thd->spcont == NULL)
{
const char *format= "[%lu] %.*b";
general_log_print(thd, COM_STMT_PREPARE, format, id,
query_length, query);
}
}
DBUG_RETURN(error);
}
@ -3075,6 +3086,28 @@ bool Prepared_statement::execute(String *expanded_query, bool open_cursor)
if (state == Query_arena::PREPARED)
state= Query_arena::EXECUTED;
/*
Log COM_EXECUTE to the general log. Note, that in case of SQL
prepared statements this causes two records to be output:
Query EXECUTE <statement name>
Execute <statement SQL text>
This is considered user-friendly, since in the
second log entry we output values of parameter markers.
Do not print anything if this is an SQL prepared statement and
we're inside a stored procedure (also called Dynamic SQL) --
sub-statements inside stored procedures are not logged into
the general log.
*/
if (error == 0 && thd->spcont == NULL)
{
const char *format= "[%lu] %.*b";
general_log_print(thd, COM_STMT_EXECUTE, format, id,
thd->query_length, thd->query);
}
error:
flags&= ~ (uint) IS_IN_USE;
return error;

4
sql/sql_select.cc
View File

@ -15752,11 +15752,11 @@ static void print_join(THD *thd, String *str, List<TABLE_LIST> *tables)
Print table as it should be in join list
SYNOPSIS
st_table_list::print();
TABLE_LIST::print();
str string where table should bbe printed
*/
void st_table_list::print(THD *thd, String *str)
void TABLE_LIST::print(THD *thd, String *str)
{
if (nested_join)
{

14
sql/sql_show.cc
View File

@ -2824,7 +2824,7 @@ int fill_schema_shemata(THD *thd, TABLE_LIST *tables, COND *cond)
}
static int get_schema_tables_record(THD *thd, struct st_table_list *tables,
static int get_schema_tables_record(THD *thd, TABLE_LIST *tables,
TABLE *table, bool res,
const char *base_name,
const char *file_name)
@ -3016,7 +3016,7 @@ static int get_schema_tables_record(THD *thd, struct st_table_list *tables,
}
static int get_schema_column_record(THD *thd, struct st_table_list *tables,
static int get_schema_column_record(THD *thd, TABLE_LIST *tables,
TABLE *table, bool res,
const char *base_name,
const char *file_name)
@ -3523,7 +3523,7 @@ err:
}
static int get_schema_stat_record(THD *thd, struct st_table_list *tables,
static int get_schema_stat_record(THD *thd, TABLE_LIST *tables,
TABLE *table, bool res,
const char *base_name,
const char *file_name)
@ -3613,7 +3613,7 @@ static int get_schema_stat_record(THD *thd, struct st_table_list *tables,
}
static int get_schema_views_record(THD *thd, struct st_table_list *tables,
static int get_schema_views_record(THD *thd, TABLE_LIST *tables,
TABLE *table, bool res,
const char *base_name,
const char *file_name)
@ -3731,7 +3731,7 @@ bool store_constraints(THD *thd, TABLE *table, const char *db,
}
static int get_schema_constraints_record(THD *thd, struct st_table_list *tables,
static int get_schema_constraints_record(THD *thd, TABLE_LIST *tables,
TABLE *table, bool res,
const char *base_name,
const char *file_name)
@ -3832,7 +3832,7 @@ static bool store_trigger(THD *thd, TABLE *table, const char *db,
}
static int get_schema_triggers_record(THD *thd, struct st_table_list *tables,
static int get_schema_triggers_record(THD *thd, TABLE_LIST *tables,
TABLE *table, bool res,
const char *base_name,
const char *file_name)
@ -3909,7 +3909,7 @@ void store_key_column_usage(TABLE *table, const char*db, const char *tname,
static int get_schema_key_column_usage_record(THD *thd,
struct st_table_list *tables,
TABLE_LIST *tables,
TABLE *table, bool res,
const char *base_name,
const char *file_name)

40
sql/sql_trigger.cc
View File

@ -1211,17 +1211,6 @@ bool Table_triggers_list::check_n_load(THD *thd, const char *db,
table->triggers= triggers;
/*
Construct key that will represent triggers for this table in the set
of routines used by statement.
*/
triggers->sroutines_key.length= 1+strlen(db)+1+strlen(table_name)+1;
if (!(triggers->sroutines_key.str= (char*)
alloc_root(&table->mem_root, triggers->sroutines_key.length)))
DBUG_RETURN(1);
triggers->sroutines_key.str[0]= TYPE_ENUM_TRIGGER;
strxmov(triggers->sroutines_key.str+1, db, ".", table_name, NullS);
/*
TODO: This could be avoided if there is no triggers
for UPDATE and DELETE.
@ -1270,6 +1259,15 @@ bool Table_triggers_list::check_n_load(THD *thd, const char *db,
DBUG_ASSERT(lex.sphead == 0);
goto err_with_lex_cleanup;
}
/*
Not strictly necessary to invoke this method here, since we know
that we've parsed CREATE TRIGGER and not an
UPDATE/DELETE/INSERT/REPLACE/LOAD/CREATE TABLE, but we try to
maintain the invariant that this method is called for each
distinct statement, in case its logic is extended with other
types of analyses in future.
*/
lex.set_trg_event_type_for_tables();
lex.sphead->set_info(0, 0, &lex.sp_chistics, (ulong) *trg_sql_mode);
@ -1899,8 +1897,9 @@ bool Table_triggers_list::process_triggers(THD *thd,
{
bool err_status;
Sub_statement_state statement_state;
sp_head *sp_trigger= bodies[event][time_type];
if (!bodies[event][time_type])
if (sp_trigger == NULL)
return FALSE;
if (old_row_is_record1)
@ -1913,15 +1912,20 @@ bool Table_triggers_list::process_triggers(THD *thd,
new_field= record1_field;
old_field= trigger_table->field;
}
/*
This trigger must have been processed by the pre-locking
algorithm.
*/
DBUG_ASSERT(trigger_table->pos_in_table_list->trg_event_map &
static_cast<uint>(1 << static_cast<int>(event)));
thd->reset_sub_statement_state(&statement_state, SUB_STMT_TRIGGER);
err_status=
bodies[event][time_type]->execute_trigger(
thd,
&trigger_table->s->db,
&trigger_table->s->table_name,
&subject_table_grants[event][time_type]);
sp_trigger->execute_trigger(thd,
&trigger_table->s->db,
&trigger_table->s->table_name,
&subject_table_grants[event][time_type]);
thd->restore_sub_statement_state(&statement_state);
@ -1935,7 +1939,7 @@ bool Table_triggers_list::process_triggers(THD *thd,
SYNOPSIS
mark_fields_used()
thd Current thread context
event Type of event triggers for which we are going to inspect
event Type of event triggers for which we are going to ins
DESCRIPTION
This method marks fields of subject table which are read/set in its

8
sql/sql_trigger.h
View File

@ -56,14 +56,6 @@ class Table_triggers_list: public Sql_alloc
updating trigger definitions during RENAME TABLE.
*/
List<LEX_STRING> on_table_names_list;
/*
Key representing triggers for this table in set of all stored
routines used by statement.
TODO: We won't need this member once triggers namespace will be
database-wide instead of table-wide because then we will be able
to use key based on sp_name as for other stored routines.
*/
LEX_STRING sroutines_key;
/*
Grant information for each trigger (pair: subject table, trigger definer).

1
sql/sql_udf.h
View File

@ -47,7 +47,6 @@ typedef struct st_udf_func
} udf_func;
class Item_result_field;
struct st_table_list;
class udf_handler :public Sql_alloc
{

13
sql/sql_view.cc
View File

@ -1199,7 +1199,20 @@ bool mysql_make_view(THD *thd, File_parser *parser, TABLE_LIST *table,
*/
for (tbl= view_main_select_tables; tbl; tbl= tbl->next_local)
tbl->lock_type= table->lock_type;
/*
If the view is mergeable, we might want to
INSERT/UPDATE/DELETE into tables of this view. Preserve the
original sql command and 'duplicates' of the outer lex.
This is used later in set_trg_event_type_for_command.
*/
lex->sql_command= old_lex->sql_command;
lex->duplicates= old_lex->duplicates;
}
/*
This method has a dependency on the proper lock type being set,
so in case of views should be called here.
*/
lex->set_trg_event_type_for_tables();
/*
If we are opening this view as part of implicit LOCK TABLES, then

25
sql/sql_yacc.yy
View File

@ -1940,13 +1940,13 @@ sp_name:
}
| ident
{
THD *thd= YYTHD;
LEX *lex= Lex;
LEX_STRING db;
if (check_routine_name(&$1))
{
MYSQL_YYABORT;
}
if (thd->copy_db_to(&db.str, &db.length))
if (lex->copy_db_to(&db.str, &db.length))
MYSQL_YYABORT;
$$= new sp_name(db, $1, false);
if ($$)
@ -5130,14 +5130,13 @@ alter:
Lex->create_info.default_table_charset= NULL;
Lex->create_info.used_fields= 0;
}
opt_create_database_options
create_database_options
{
THD *thd= YYTHD;
LEX *lex= thd->lex;
LEX *lex=Lex;
lex->sql_command=SQLCOM_ALTER_DB;
lex->name= $3;
if (lex->name.str == NULL &&
thd->copy_db_to(&lex->name.str, &lex->name.length))
lex->copy_db_to(&lex->name.str, &lex->name.length))
MYSQL_YYABORT;
}
| ALTER PROCEDURE sp_name
@ -5591,12 +5590,11 @@ alter_list_item:
}
| RENAME opt_to table_ident
{
THD *thd= YYTHD;
LEX *lex= thd->lex;
LEX *lex=Lex;
size_t dummy;
lex->select_lex.db=$3->db.str;
if (lex->select_lex.db == NULL &&
thd->copy_db_to(&lex->select_lex.db, &dummy))
lex->copy_db_to(&lex->select_lex.db, &dummy))
{
MYSQL_YYABORT;
}
@ -10881,10 +10879,9 @@ require_list_element:
grant_ident:
'*'
{
THD *thd= YYTHD;
LEX *lex= thd->lex;
LEX *lex= Lex;
size_t dummy;
if (thd->copy_db_to(&lex->current_select->db, &dummy))
if (lex->copy_db_to(&lex->current_select->db, &dummy))
MYSQL_YYABORT;
if (lex->grant == GLOBAL_ACLS)
lex->grant = DB_ACLS & ~GRANT_ACL;
@ -11530,12 +11527,12 @@ trigger_tail:
MYSQL_YYABORT;
sp->reset_thd_mem_root(thd);
sp->init(lex);
sp->m_type= TYPE_ENUM_TRIGGER;
sp->init_sp_name(thd, $3);
lex->stmt_definition_begin= $2;
lex->ident.str= $7;
lex->ident.length= $11 - $7;
sp->m_type= TYPE_ENUM_TRIGGER;
lex->sphead= sp;
lex->spname= $3;
/*
@ -11611,9 +11608,9 @@ sp_tail:
sp= new sp_head();
sp->reset_thd_mem_root(YYTHD);
sp->init(lex);
sp->m_type= TYPE_ENUM_PROCEDURE;
sp->init_sp_name(YYTHD, $3);
sp->m_type= TYPE_ENUM_PROCEDURE;
lex->sphead= sp;
/*
* We have to turn of CLIENT_MULTI_QUERIES while parsing a

221
sql/table.cc
View File

@ -2849,15 +2849,144 @@ void st_table::reset_item_list(List<Item> *item_list) const
}
}
/**
Set the initial purpose of this TABLE_LIST object in the list of
used tables. We need to track this information on table-by-
table basis, since when this table becomes an element of the
pre-locked list, it's impossible to identify which SQL
sub-statement it has been originally used in.
E.g.:
User request: SELECT * FROM t1 WHERE f1();
FUNCTION f1(): DELETE FROM t2; RETURN 1;
BEFORE DELETE trigger on t2: INSERT INTO t3 VALUES (old.a);
For this user request, the pre-locked list will contain t1, t2, t3
table elements, each needed for different DML.
This method is called immediately after parsing for tables
of the table list of the top-level select lex.
The trigger event map is updated to reflect INSERT, UPDATE, DELETE,
REPLACE, LOAD DATA, CREATE TABLE .. SELECT, CREATE TABLE ..
REPLACE SELECT statements, and additionally ON DUPLICATE KEY UPDATE
clause.
*/
void
TABLE_LIST::set_trg_event_type(const st_lex *lex)
{
enum trg_event_type trg_event;
/*
Some auxiliary operations
(e.g. GRANT processing) create TABLE_LIST instances outside
the parser. Additionally, some commands (e.g. OPTIMIZE) change
the lock type for a table only after parsing is done. Luckily,
these do not fire triggers and do not need to pre-load them.
For these TABLE_LISTs set_trg_event_type is never called, and
trg_event_map is always empty. That means that the pre-locking
algorithm will ignore triggers defined on these tables, if
any, and the execution will either fail with an assert in
sql_trigger.cc or with an error that a used table was not
pre-locked, in case of a production build.
TODO: this usage pattern creates unnecessary module dependencies
and should be rewritten to go through the parser.
Table list instances created outside the parser in most cases
refer to mysql.* system tables. It is not allowed to have
a trigger on a system table, but keeping track of
initialization provides extra safety in case this limitation
is circumvented.
*/
/*
This is a fast check to filter out statements that do
not change data, or tables on the right side, in case of
INSERT .. SELECT, CREATE TABLE .. SELECT and so on.
Here we also filter out OPTIMIZE statement and non-updateable
views, for which lock_type is TL_UNLOCK or TL_READ after
parsing.
*/
if (static_cast<int>(lock_type) < static_cast<int>(TL_WRITE_ALLOW_WRITE))
return;
switch (lex->sql_command) {
/*
Basic INSERT. If there is an additional ON DUPLIATE KEY UPDATE
clause, it will be handled later in this method.
*/
case SQLCOM_INSERT: /* fall through */
case SQLCOM_INSERT_SELECT:
/*
LOAD DATA ... INFILE is expected to fire BEFORE/AFTER INSERT
triggers.
If the statement also has REPLACE clause, it will be
handled later in this method.
*/
case SQLCOM_LOAD: /* fall through */
/*
REPLACE is semantically equivalent to INSERT. In case
of a primary or unique key conflict, it deletes the old
record and inserts a new one. So we also may need to
fire ON DELETE triggers. This functionality is handled
later in this method.
*/
case SQLCOM_REPLACE: /* fall through */
case SQLCOM_REPLACE_SELECT:
/*
CREATE TABLE ... SELECT defaults to INSERT if the table or
view already exists. REPLACE option of CREATE TABLE ...
REPLACE SELECT is handled later in this method.
*/
case SQLCOM_CREATE_TABLE:
trg_event= TRG_EVENT_INSERT;
break;
/* Basic update and multi-update */
case SQLCOM_UPDATE: /* fall through */
case SQLCOM_UPDATE_MULTI:
trg_event= TRG_EVENT_UPDATE;
break;
/* Basic delete and multi-delete */
case SQLCOM_DELETE: /* fall through */
case SQLCOM_DELETE_MULTI:
trg_event= TRG_EVENT_DELETE;
break;
default:
/*
OK to return, since value of 'duplicates' is irrelevant
for non-updating commands.
*/
return;
}
trg_event_map|= static_cast<uint8>(1 << static_cast<int>(trg_event));
switch (lex->duplicates) {
case DUP_UPDATE:
trg_event= TRG_EVENT_UPDATE;
break;
case DUP_REPLACE:
trg_event= TRG_EVENT_DELETE;
break;
case DUP_ERROR:
default:
return;
}
trg_event_map|= static_cast<uint8>(1 << static_cast<int>(trg_event));
}
/*
calculate md5 of query
SYNOPSIS
st_table_list::calc_md5()
TABLE_LIST::calc_md5()
buffer buffer for md5 writing
*/
void st_table_list::calc_md5(char *buffer)
void TABLE_LIST::calc_md5(char *buffer)
{
my_MD5_CTX context;
uchar digest[16];
@ -2882,10 +3011,10 @@ void st_table_list::calc_md5(char *buffer)
it (it is a kind of optimisation)
SYNOPSIS
st_table_list::set_underlying_merge()
TABLE_LIST::set_underlying_merge()
*/
void st_table_list::set_underlying_merge()
void TABLE_LIST::set_underlying_merge()
{
TABLE_LIST *tbl;
@ -2920,7 +3049,7 @@ void st_table_list::set_underlying_merge()
setup fields of placeholder of merged VIEW
SYNOPSIS
st_table_list::setup_underlying()
TABLE_LIST::setup_underlying()
thd - thread handler
DESCRIPTION
@ -2933,9 +3062,9 @@ void st_table_list::set_underlying_merge()
TRUE - error
*/
bool st_table_list::setup_underlying(THD *thd)
bool TABLE_LIST::setup_underlying(THD *thd)
{
DBUG_ENTER("st_table_list::setup_underlying");
DBUG_ENTER("TABLE_LIST::setup_underlying");
if (!field_translation && merge_underlying_list)
{
@ -2998,7 +3127,7 @@ bool st_table_list::setup_underlying(THD *thd)
Prepare where expression of view
SYNOPSIS
st_table_list::prep_where()
TABLE_LIST::prep_where()
thd - thread handler
conds - condition of this JOIN
no_where_clause - do not build WHERE or ON outer qwery do not need it
@ -3012,10 +3141,10 @@ bool st_table_list::setup_underlying(THD *thd)
TRUE - error
*/
bool st_table_list::prep_where(THD *thd, Item **conds,
bool TABLE_LIST::prep_where(THD *thd, Item **conds,
bool no_where_clause)
{
DBUG_ENTER("st_table_list::prep_where");
DBUG_ENTER("TABLE_LIST::prep_where");
for (TABLE_LIST *tbl= merge_underlying_list; tbl; tbl= tbl->next_local)
{
@ -3115,7 +3244,7 @@ merge_on_conds(THD *thd, TABLE_LIST *table, bool is_cascaded)
Prepare check option expression of table
SYNOPSIS
st_table_list::prep_check_option()
TABLE_LIST::prep_check_option()
thd - thread handler
check_opt_type - WITH CHECK OPTION type (VIEW_CHECK_NONE,
VIEW_CHECK_LOCAL, VIEW_CHECK_CASCADED)
@ -3130,16 +3259,16 @@ merge_on_conds(THD *thd, TABLE_LIST *table, bool is_cascaded)
This method builds check option condition to use it later on
every call (usual execution or every SP/PS call).
This method have to be called after WHERE preparation
(st_table_list::prep_where)
(TABLE_LIST::prep_where)
RETURN
FALSE - OK
TRUE - error
*/
bool st_table_list::prep_check_option(THD *thd, uint8 check_opt_type)
bool TABLE_LIST::prep_check_option(THD *thd, uint8 check_opt_type)
{
DBUG_ENTER("st_table_list::prep_check_option");
DBUG_ENTER("TABLE_LIST::prep_check_option");
bool is_cascaded= check_opt_type == VIEW_CHECK_CASCADED;
for (TABLE_LIST *tbl= merge_underlying_list; tbl; tbl= tbl->next_local)
@ -3198,12 +3327,12 @@ bool st_table_list::prep_check_option(THD *thd, uint8 check_opt_type)
Hide errors which show view underlying table information
SYNOPSIS
st_table_list::hide_view_error()
TABLE_LIST::hide_view_error()
thd thread handler
*/
void st_table_list::hide_view_error(THD *thd)
void TABLE_LIST::hide_view_error(THD *thd)
{
/* Hide "Unknown column" or "Unknown function" error */
if (thd->net.last_errno == ER_BAD_FIELD_ERROR ||
@ -3234,7 +3363,7 @@ void st_table_list::hide_view_error(THD *thd)
table_to_find (TABLE)
SYNOPSIS
st_table_list::find_underlying_table()
TABLE_LIST::find_underlying_table()
table_to_find table to find
RETURN
@ -3242,7 +3371,7 @@ void st_table_list::hide_view_error(THD *thd)
found table reference
*/
st_table_list *st_table_list::find_underlying_table(TABLE *table_to_find)
TABLE_LIST *TABLE_LIST::find_underlying_table(TABLE *table_to_find)
{
/* is this real table and table which we are looking for? */
if (table == table_to_find && merge_underlying_list == 0)
@ -3261,10 +3390,10 @@ st_table_list *st_table_list::find_underlying_table(TABLE *table_to_find)
cleunup items belonged to view fields translation table
SYNOPSIS
st_table_list::cleanup_items()
TABLE_LIST::cleanup_items()
*/
void st_table_list::cleanup_items()
void TABLE_LIST::cleanup_items()
{
if (!field_translation)
return;
@ -3280,7 +3409,7 @@ void st_table_list::cleanup_items()
check CHECK OPTION condition
SYNOPSIS
st_table_list::view_check_option()
TABLE_LIST::view_check_option()
ignore_failure ignore check option fail
RETURN
@ -3289,7 +3418,7 @@ void st_table_list::cleanup_items()
VIEW_CHECK_SKIP FAILED, but continue
*/
int st_table_list::view_check_option(THD *thd, bool ignore_failure)
int TABLE_LIST::view_check_option(THD *thd, bool ignore_failure)
{
if (check_option && check_option->val_int() == 0)
{
@ -3314,7 +3443,7 @@ int st_table_list::view_check_option(THD *thd, bool ignore_failure)
table belong to given mask
SYNOPSIS
st_table_list::check_single_table()
TABLE_LIST::check_single_table()
table_arg reference on variable where to store found table
(should be 0 on call, to find table, or point to table for
unique test)
@ -3326,9 +3455,9 @@ int st_table_list::view_check_option(THD *thd, bool ignore_failure)
TRUE found several tables
*/
bool st_table_list::check_single_table(st_table_list **table_arg,
bool TABLE_LIST::check_single_table(TABLE_LIST **table_arg,
table_map map,
st_table_list *view_arg)
TABLE_LIST *view_arg)
{
for (TABLE_LIST *tbl= merge_underlying_list; tbl; tbl= tbl->next_local)
{
@ -3361,7 +3490,7 @@ bool st_table_list::check_single_table(st_table_list **table_arg,
TRUE - out of memory
*/
bool st_table_list::set_insert_values(MEM_ROOT *mem_root)
bool TABLE_LIST::set_insert_values(MEM_ROOT *mem_root)
{
if (table)
{
@ -3385,7 +3514,7 @@ bool st_table_list::set_insert_values(MEM_ROOT *mem_root)
Test if this is a leaf with respect to name resolution.
SYNOPSIS
st_table_list::is_leaf_for_name_resolution()
TABLE_LIST::is_leaf_for_name_resolution()
DESCRIPTION
A table reference is a leaf with respect to name resolution if
@ -3397,7 +3526,7 @@ bool st_table_list::set_insert_values(MEM_ROOT *mem_root)
RETURN
TRUE if a leaf, FALSE otherwise.
*/
bool st_table_list::is_leaf_for_name_resolution()
bool TABLE_LIST::is_leaf_for_name_resolution()
{
return (view || is_natural_join || is_join_columns_complete ||
!nested_join);
@ -3409,7 +3538,7 @@ bool st_table_list::is_leaf_for_name_resolution()
respect to name resolution.
SYNOPSIS
st_table_list::first_leaf_for_name_resolution()
TABLE_LIST::first_leaf_for_name_resolution()
DESCRIPTION
Given that 'this' is a nested table reference, recursively walk
@ -3427,7 +3556,7 @@ bool st_table_list::is_leaf_for_name_resolution()
else return 'this'
*/
TABLE_LIST *st_table_list::first_leaf_for_name_resolution()
TABLE_LIST *TABLE_LIST::first_leaf_for_name_resolution()
{
TABLE_LIST *cur_table_ref;
NESTED_JOIN *cur_nested_join;
@ -3467,7 +3596,7 @@ TABLE_LIST *st_table_list::first_leaf_for_name_resolution()
respect to name resolution.
SYNOPSIS
st_table_list::last_leaf_for_name_resolution()
TABLE_LIST::last_leaf_for_name_resolution()
DESCRIPTION
Given that 'this' is a nested table reference, recursively walk
@ -3485,7 +3614,7 @@ TABLE_LIST *st_table_list::first_leaf_for_name_resolution()
- else - 'this'
*/
TABLE_LIST *st_table_list::last_leaf_for_name_resolution()
TABLE_LIST *TABLE_LIST::last_leaf_for_name_resolution()
{
TABLE_LIST *cur_table_ref= this;
NESTED_JOIN *cur_nested_join;
@ -3527,7 +3656,7 @@ TABLE_LIST *st_table_list::last_leaf_for_name_resolution()
want_access Acess which we require
*/
void st_table_list::register_want_access(ulong want_access)
void TABLE_LIST::register_want_access(ulong want_access)
{
/* Remove SHOW_VIEW_ACL, because it will be checked during making view */
want_access&= ~SHOW_VIEW_ACL;
@ -3546,7 +3675,7 @@ void st_table_list::register_want_access(ulong want_access)
Load security context information for this view
SYNOPSIS
st_table_list::prepare_view_securety_context()
TABLE_LIST::prepare_view_securety_context()
thd [in] thread handler
RETURN
@ -3555,9 +3684,9 @@ void st_table_list::register_want_access(ulong want_access)
*/
#ifndef NO_EMBEDDED_ACCESS_CHECKS
bool st_table_list::prepare_view_securety_context(THD *thd)
bool TABLE_LIST::prepare_view_securety_context(THD *thd)
{
DBUG_ENTER("st_table_list::prepare_view_securety_context");
DBUG_ENTER("TABLE_LIST::prepare_view_securety_context");
DBUG_PRINT("enter", ("table: %s", alias));
DBUG_ASSERT(!prelocking_placeholder && view);
@ -3606,17 +3735,17 @@ bool st_table_list::prepare_view_securety_context(THD *thd)
Find security context of current view
SYNOPSIS
st_table_list::find_view_security_context()
TABLE_LIST::find_view_security_context()
thd [in] thread handler
*/
#ifndef NO_EMBEDDED_ACCESS_CHECKS
Security_context *st_table_list::find_view_security_context(THD *thd)
Security_context *TABLE_LIST::find_view_security_context(THD *thd)
{
Security_context *sctx;
TABLE_LIST *upper_view= this;
DBUG_ENTER("st_table_list::find_view_security_context");
DBUG_ENTER("TABLE_LIST::find_view_security_context");
DBUG_ASSERT(view);
while (upper_view && !upper_view->view_suid)
@ -3645,7 +3774,7 @@ Security_context *st_table_list::find_view_security_context(THD *thd)
Prepare security context and load underlying tables priveleges for view
SYNOPSIS
st_table_list::prepare_security()
TABLE_LIST::prepare_security()
thd [in] thread handler
RETURN
@ -3653,11 +3782,11 @@ Security_context *st_table_list::find_view_security_context(THD *thd)
TRUE Error
*/
bool st_table_list::prepare_security(THD *thd)
bool TABLE_LIST::prepare_security(THD *thd)
{
List_iterator_fast<TABLE_LIST> tb(*view_tables);
TABLE_LIST *tbl;
DBUG_ENTER("st_table_list::prepare_security");
DBUG_ENTER("TABLE_LIST::prepare_security");
#ifndef NO_EMBEDDED_ACCESS_CHECKS
Security_context *save_security_ctx= thd->security_ctx;
@ -4406,10 +4535,10 @@ void st_table::mark_columns_needed_for_insert()
Cleanup this table for re-execution.
SYNOPSIS
st_table_list::reinit_before_use()
TABLE_LIST::reinit_before_use()
*/
void st_table_list::reinit_before_use(THD *thd)
void TABLE_LIST::reinit_before_use(THD *thd)
{
/*
Reset old pointers to TABLEs: they are not valid since the tables
@ -4436,7 +4565,7 @@ void st_table_list::reinit_before_use(THD *thd)
Return subselect that contains the FROM list this table is taken from
SYNOPSIS
st_table_list::containing_subselect()
TABLE_LIST::containing_subselect()
RETURN
Subselect item for the subquery that contains the FROM list
@ -4445,7 +4574,7 @@ void st_table_list::reinit_before_use(THD *thd)
*/
Item_subselect *st_table_list::containing_subselect()
Item_subselect *TABLE_LIST::containing_subselect()
{
return (select_lex ? select_lex->master_unit()->item : 0);
}

77
sql/table.h
View File

@ -85,6 +85,15 @@ enum tmp_table_type
INTERNAL_TMP_TABLE, SYSTEM_TMP_TABLE
};
/** Event on which trigger is invoked. */
enum trg_event_type
{
TRG_EVENT_INSERT= 0,
TRG_EVENT_UPDATE= 1,
TRG_EVENT_DELETE= 2,
TRG_EVENT_MAX
};
enum frm_type_enum
{
FRMTYPE_ERROR= 0,
@ -386,7 +395,7 @@ struct st_table {
/* Table's triggers, 0 if there are no of them */
Table_triggers_list *triggers;
struct st_table_list *pos_in_table_list;/* Element referring to this table */
TABLE_LIST *pos_in_table_list;/* Element referring to this table */
ORDER *group;
const char *alias; /* alias or table name */
uchar *null_flags;
@ -625,7 +634,7 @@ typedef struct st_field_info
} ST_FIELD_INFO;
struct st_table_list;
struct TABLE_LIST;
typedef class Item COND;
typedef struct st_schema_table
@ -633,12 +642,12 @@ typedef struct st_schema_table
const char* table_name;
ST_FIELD_INFO *fields_info;
/* Create information_schema table */
TABLE *(*create_table) (THD *thd, struct st_table_list *table_list);
TABLE *(*create_table) (THD *thd, TABLE_LIST *table_list);
/* Fill table with data */
int (*fill_table) (THD *thd, struct st_table_list *tables, COND *cond);
int (*fill_table) (THD *thd, TABLE_LIST *tables, COND *cond);
/* Handle fileds for old SHOW */
int (*old_format) (THD *thd, struct st_schema_table *schema_table);
int (*process_table) (THD *thd, struct st_table_list *tables,
int (*process_table) (THD *thd, TABLE_LIST *tables,
TABLE *table, bool res, const char *base_name,
const char *file_name);
int idx_field1, idx_field2;
@ -671,7 +680,7 @@ struct st_lex;
class select_union;
class TMP_TABLE_PARAM;
Item *create_view_field(THD *thd, st_table_list *view, Item **field_ref,
Item *create_view_field(THD *thd, TABLE_LIST *view, Item **field_ref,
const char *name);
struct Field_translator
@ -692,7 +701,7 @@ class Natural_join_column: public Sql_alloc
public:
Field_translator *view_field; /* Column reference of merge view. */
Field *table_field; /* Column reference of table or temp view. */
st_table_list *table_ref; /* Original base table/view reference. */
TABLE_LIST *table_ref; /* Original base table/view reference. */
/*
True if a common join column of two NATURAL/USING join operands. Notice
that when we have a hierarchy of nested NATURAL/USING joins, a column can
@ -702,8 +711,8 @@ public:
*/
bool is_common;
public:
Natural_join_column(Field_translator *field_param, st_table_list *tab);
Natural_join_column(Field *field_param, st_table_list *tab);
Natural_join_column(Field_translator *field_param, TABLE_LIST *tab);
Natural_join_column(Field *field_param, TABLE_LIST *tab);
const char *name();
Item *create_item(THD *thd);
Field *field();
@ -746,9 +755,9 @@ public:
*/
class index_hint;
typedef struct st_table_list
struct TABLE_LIST
{
st_table_list() {} /* Remove gcc warning */
TABLE_LIST() {} /* Remove gcc warning */
/**
Prepare TABLE_LIST that consists of one table instance to use in
@ -769,9 +778,9 @@ typedef struct st_table_list
views as leaves (unlike 'next_leaf' below). Created at parse time
in st_select_lex::add_table_to_list() -> table_list.link_in_list().
*/
struct st_table_list *next_local;
TABLE_LIST *next_local;
/* link in a global list of all queries tables */
struct st_table_list *next_global, **prev_global;
TABLE_LIST *next_global, **prev_global;
char *db, *alias, *table_name, *schema_table_name;
char *option; /* Used by cache index */
Item *on_expr; /* Used with outer join */
@ -791,7 +800,7 @@ typedef struct st_table_list
'this' represents a NATURAL or USING join operation. Thus after
parsing 'this' is a NATURAL/USING join iff (natural_join != NULL).
*/
struct st_table_list *natural_join;
TABLE_LIST *natural_join;
/*
True if 'this' represents a nested join that is a NATURAL JOIN.
For one of the operands of 'this', the member 'natural_join' points
@ -815,7 +824,7 @@ typedef struct st_table_list
base tables. All of these TABLE_LIST instances contain a
materialized list of columns. The list is local to a subquery.
*/
struct st_table_list *next_name_resolution_table;
TABLE_LIST *next_name_resolution_table;
/* Index names in a "... JOIN ... USE/IGNORE INDEX ..." clause. */
List<index_hint> *index_hints;
TABLE *table; /* opened table */
@ -832,7 +841,7 @@ typedef struct st_table_list
here it will be reference of first occurrence of t1 to second (as you
can see this lists can't be merged)
*/
st_table_list *correspondent_table;
TABLE_LIST *correspondent_table;
st_select_lex_unit *derived; /* SELECT_LEX_UNIT of derived table */
ST_SCHEMA_TABLE *schema_table; /* Information_schema table */
st_select_lex *schema_select_lex;
@ -853,20 +862,20 @@ typedef struct st_table_list
does not include the tables of subqueries used in the view. Is set only
for merged views.
*/
st_table_list *merge_underlying_list;
TABLE_LIST *merge_underlying_list;
/*
- 0 for base tables
- in case of the view it is the list of all (not only underlying
tables but also used in subquery ones) tables of the view.
*/
List<st_table_list> *view_tables;
List<TABLE_LIST> *view_tables;
/* most upper view this table belongs to */
st_table_list *belong_to_view;
TABLE_LIST *belong_to_view;
/*
The view directly referencing this table
(non-zero only for merged underlying tables of a view).
*/
st_table_list *referencing_view;
TABLE_LIST *referencing_view;
/*
Security context (non-zero only for tables which belong
to view with SQL SECURITY DEFINER)
@ -883,7 +892,7 @@ typedef struct st_table_list
leaves. Created in setup_tables() -> make_leaves_list().
*/
bool allowed_show;
st_table_list *next_leaf;
TABLE_LIST *next_leaf;
Item *where; /* VIEW WHERE clause condition */
Item *check_option; /* WITH CHECK OPTION condition */
LEX_STRING select_stmt; /* text of (CREATE/SELECT) statement */
@ -923,8 +932,8 @@ typedef struct st_table_list
table_map dep_tables; /* tables the table depends on */
table_map on_expr_dep_tables; /* tables on expression depends on */
struct st_nested_join *nested_join; /* if the element is a nested join */
st_table_list *embedding; /* nested join containing the table */
List<struct st_table_list> *join_list;/* join list the table belongs to */
TABLE_LIST *embedding; /* nested join containing the table */
List<TABLE_LIST> *join_list;/* join list the table belongs to */
bool cacheable_table; /* stop PS caching */
/* used in multi-upd/views privilege check */
bool table_in_first_from_clause;
@ -979,6 +988,13 @@ typedef struct st_table_list
/* End of view definition context. */
/**
Indicates what triggers we need to pre-load for this TABLE_LIST
when opening an associated TABLE. This is filled after
the parsed tree is created.
*/
uint8 trg_event_map;
enum enum_schema_table_state schema_table_state;
void calc_md5(char *buffer);
void set_underlying_merge();
@ -991,15 +1007,15 @@ typedef struct st_table_list
!table;
}
void print(THD *thd, String *str);
bool check_single_table(st_table_list **table, table_map map,
st_table_list *view);
bool check_single_table(TABLE_LIST **table, table_map map,
TABLE_LIST *view);
bool set_insert_values(MEM_ROOT *mem_root);
void hide_view_error(THD *thd);
st_table_list *find_underlying_table(TABLE *table);
st_table_list *first_leaf_for_name_resolution();
st_table_list *last_leaf_for_name_resolution();
TABLE_LIST *find_underlying_table(TABLE *table);
TABLE_LIST *first_leaf_for_name_resolution();
TABLE_LIST *last_leaf_for_name_resolution();
bool is_leaf_for_name_resolution();
inline st_table_list *top_table()
inline TABLE_LIST *top_table()
{ return belong_to_view ? belong_to_view : this; }
inline bool prepare_check_option(THD *thd)
{
@ -1036,6 +1052,7 @@ typedef struct st_table_list
*/
bool process_index_hints(TABLE *table);
void set_trg_event_type(const st_lex *lex);
private:
bool prep_check_option(THD *thd, uint8 check_opt_type);
bool prep_where(THD *thd, Item **conds, bool no_where_clause);
@ -1043,7 +1060,7 @@ private:
Cleanup for re-execution in a prepared statement or a stored
procedure.
*/
} TABLE_LIST;
};
class Item;

75
storage/myisam/ha_myisam.cc
View File

@ -2075,3 +2075,78 @@ mysql_declare_plugin(myisam)
}
mysql_declare_plugin_end;
#ifdef HAVE_QUERY_CACHE
/**
@brief Register a named table with a call back function to the query cache.
@param thd The thread handle
@param table_key A pointer to the table name in the table cache
@param key_length The length of the table name
@param[out] engine_callback The pointer to the storage engine call back
function, currently 0
@param[out] engine_data Engine data will be set to 0.
@note Despite the name of this function, it is used to check each statement
before it is cached and not to register a table or callback function.
@see handler::register_query_cache_table
@return The error code. The engine_data and engine_callback will be set to 0.
@retval TRUE Success
@retval FALSE An error occured
*/
my_bool ha_myisam::register_query_cache_table(THD *thd, char *table_name,
uint table_name_len,
qc_engine_callback
*engine_callback,
ulonglong *engine_data)
{
/*
No call back function is needed to determine if a cached statement
is valid or not.
*/
*engine_callback= 0;
/*
No engine data is needed.
*/
*engine_data= 0;
/*
If a concurrent INSERT has happened just before the currently processed
SELECT statement, the total size of the table is unknown.
To determine if the table size is known, the current thread's snap shot of
the table size with the actual table size are compared.
If the table size is unknown the SELECT statement can't be cached.
*/
ulonglong actual_data_file_length;
ulonglong current_data_file_length;
/*
POSIX visibility rules specify that "2. Whatever memory values a
thread can see when it unlocks a mutex <...> can also be seen by any
thread that later locks the same mutex". In this particular case,
concurrent insert thread had modified the data_file_length in
MYISAM_SHARE before it has unlocked (or even locked)
structure_guard_mutex. So, here we're guaranteed to see at least that
value after we've locked the same mutex. We can see a later value
(modified by some other thread) though, but it's ok, as we only want
to know if the variable was changed, the actual new value doesn't matter
*/
actual_data_file_length= file->s->state.state.data_file_length;
current_data_file_length= file->save_state.data_file_length;
if (current_data_file_length != actual_data_file_length)
{
/* Don't cache current statement. */
return FALSE;
}
/* It is ok to try to cache current statement. */
return TRUE;
}
#endif

7
storage/myisam/ha_myisam.h
View File

@ -137,4 +137,11 @@ class ha_myisam: public handler
int dump(THD* thd, int fd);
int net_read_dump(NET* net);
#endif
#ifdef HAVE_QUERY_CACHE
my_bool register_query_cache_table(THD *thd, char *table_key,
uint key_length,
qc_engine_callback
*engine_callback,
ulonglong *engine_data);
#endif
};