mirror of
https://github.com/MariaDB/server.git
synced 2025-01-18 04:53:01 +01:00
59d20e26d5
INSERT triggers". In cases when REPLACE was internally executed via update and table had on update (on delete) triggers defined we exposed the fact that such optimization used by callng on update (not calling on delete) triggers. Such behavior contradicts our documentation which describes REPLACE as INSERT with optional DELETE. This fix just disables this optimization for tables with on delete triggers. The optimization is still applied for tables which have on update but have no on delete triggers, we just don't invoke on update triggers in this case and thus don't expose information about optimization to user. Also added test coverage for values returned by ROW_COUNT() function (and thus for values returned by mysql_affected_rows()) for various forms of INSERT.
1080 lines
32 KiB
Text
1080 lines
32 KiB
Text
drop table if exists t1, t2, t3, t4;
|
|
drop view if exists v1;
|
|
drop database if exists mysqltest;
|
|
drop function if exists f1;
|
|
drop function if exists f2;
|
|
drop procedure if exists p1;
|
|
create table t1 (i int);
|
|
create trigger trg before insert on t1 for each row set @a:=1;
|
|
set @a:=0;
|
|
select @a;
|
|
@a
|
|
0
|
|
insert into t1 values (1);
|
|
select @a;
|
|
@a
|
|
1
|
|
drop trigger trg;
|
|
create trigger trg before insert on t1 for each row set @a:=new.i;
|
|
insert into t1 values (123);
|
|
select @a;
|
|
@a
|
|
123
|
|
drop trigger trg;
|
|
drop table t1;
|
|
create table t1 (i int not null, j int);
|
|
create trigger trg before insert on t1 for each row
|
|
begin
|
|
if isnull(new.j) then
|
|
set new.j:= new.i * 10;
|
|
end if;
|
|
end|
|
|
insert into t1 (i) values (1)|
|
|
insert into t1 (i,j) values (2, 3)|
|
|
select * from t1|
|
|
i j
|
|
1 10
|
|
2 3
|
|
drop trigger trg|
|
|
drop table t1|
|
|
create table t1 (i int not null primary key);
|
|
create trigger trg after insert on t1 for each row
|
|
set @a:= if(@a,concat(@a, ":", new.i), new.i);
|
|
set @a:="";
|
|
insert into t1 values (2),(3),(4),(5);
|
|
select @a;
|
|
@a
|
|
2:3:4:5
|
|
drop trigger trg;
|
|
drop table t1;
|
|
create table t1 (aid int not null primary key, balance int not null default 0);
|
|
insert into t1 values (1, 1000), (2,3000);
|
|
create trigger trg before update on t1 for each row
|
|
begin
|
|
declare loc_err varchar(255);
|
|
if abs(new.balance - old.balance) > 1000 then
|
|
set new.balance:= old.balance;
|
|
set loc_err := concat("Too big change for aid = ", new.aid);
|
|
set @update_failed:= if(@update_failed, concat(@a, ":", loc_err), loc_err);
|
|
end if;
|
|
end|
|
|
set @update_failed:=""|
|
|
update t1 set balance=1500|
|
|
select @update_failed;
|
|
select * from t1|
|
|
@update_failed
|
|
Too big change for aid = 2
|
|
aid balance
|
|
1 1500
|
|
2 3000
|
|
drop trigger trg|
|
|
drop table t1|
|
|
create table t1 (i int);
|
|
insert into t1 values (1),(2),(3),(4);
|
|
create trigger trg after update on t1 for each row
|
|
set @total_change:=@total_change + new.i - old.i;
|
|
set @total_change:=0;
|
|
update t1 set i=3;
|
|
select @total_change;
|
|
@total_change
|
|
2
|
|
drop trigger trg;
|
|
drop table t1;
|
|
create table t1 (i int);
|
|
insert into t1 values (1),(2),(3),(4);
|
|
create trigger trg before delete on t1 for each row
|
|
set @del_sum:= @del_sum + old.i;
|
|
set @del_sum:= 0;
|
|
delete from t1 where i <= 3;
|
|
select @del_sum;
|
|
@del_sum
|
|
6
|
|
drop trigger trg;
|
|
drop table t1;
|
|
create table t1 (i int);
|
|
insert into t1 values (1),(2),(3),(4);
|
|
create trigger trg after delete on t1 for each row set @del:= 1;
|
|
set @del:= 0;
|
|
delete from t1 where i <> 0;
|
|
select @del;
|
|
@del
|
|
1
|
|
drop trigger trg;
|
|
drop table t1;
|
|
create table t1 (i int, j int);
|
|
create trigger trg1 before insert on t1 for each row
|
|
begin
|
|
if new.j > 10 then
|
|
set new.j := 10;
|
|
end if;
|
|
end|
|
|
create trigger trg2 before update on t1 for each row
|
|
begin
|
|
if old.i % 2 = 0 then
|
|
set new.j := -1;
|
|
end if;
|
|
end|
|
|
create trigger trg3 after update on t1 for each row
|
|
begin
|
|
if new.j = -1 then
|
|
set @fired:= "Yes";
|
|
end if;
|
|
end|
|
|
set @fired:="";
|
|
insert into t1 values (1,2),(2,3),(3,14);
|
|
select @fired;
|
|
@fired
|
|
|
|
select * from t1;
|
|
i j
|
|
1 2
|
|
2 3
|
|
3 10
|
|
update t1 set j= 20;
|
|
select @fired;
|
|
@fired
|
|
Yes
|
|
select * from t1;
|
|
i j
|
|
1 20
|
|
2 -1
|
|
3 20
|
|
drop trigger trg1;
|
|
drop trigger trg2;
|
|
drop trigger trg3;
|
|
drop table t1;
|
|
create table t1 (id int not null primary key, data int);
|
|
create trigger t1_bi before insert on t1 for each row
|
|
set @log:= concat(@log, "(BEFORE_INSERT: new=(id=", new.id, ", data=", new.data,"))");
|
|
create trigger t1_ai after insert on t1 for each row
|
|
set @log:= concat(@log, "(AFTER_INSERT: new=(id=", new.id, ", data=", new.data,"))");
|
|
create trigger t1_bu before update on t1 for each row
|
|
set @log:= concat(@log, "(BEFORE_UPDATE: old=(id=", old.id, ", data=", old.data,
|
|
") new=(id=", new.id, ", data=", new.data,"))");
|
|
create trigger t1_au after update on t1 for each row
|
|
set @log:= concat(@log, "(AFTER_UPDATE: old=(id=", old.id, ", data=", old.data,
|
|
") new=(id=", new.id, ", data=", new.data,"))");
|
|
create trigger t1_bd before delete on t1 for each row
|
|
set @log:= concat(@log, "(BEFORE_DELETE: old=(id=", old.id, ", data=", old.data,"))");
|
|
create trigger t1_ad after delete on t1 for each row
|
|
set @log:= concat(@log, "(AFTER_DELETE: old=(id=", old.id, ", data=", old.data,"))");
|
|
set @log:= "";
|
|
insert into t1 values (1, 1);
|
|
select @log;
|
|
@log
|
|
(BEFORE_INSERT: new=(id=1, data=1))(AFTER_INSERT: new=(id=1, data=1))
|
|
set @log:= "";
|
|
insert ignore t1 values (1, 2);
|
|
select @log;
|
|
@log
|
|
(BEFORE_INSERT: new=(id=1, data=2))
|
|
set @log:= "";
|
|
insert into t1 (id, data) values (1, 3), (2, 2) on duplicate key update data= data + 1;
|
|
select @log;
|
|
@log
|
|
(BEFORE_INSERT: new=(id=1, data=3))(BEFORE_UPDATE: old=(id=1, data=1) new=(id=1, data=2))(AFTER_UPDATE: old=(id=1, data=1) new=(id=1, data=2))(BEFORE_INSERT: new=(id=2, data=2))(AFTER_INSERT: new=(id=2, data=2))
|
|
set @log:= "";
|
|
replace t1 values (1, 4), (3, 3);
|
|
select @log;
|
|
@log
|
|
(BEFORE_INSERT: new=(id=1, data=4))(BEFORE_DELETE: old=(id=1, data=2))(AFTER_DELETE: old=(id=1, data=2))(AFTER_INSERT: new=(id=1, data=4))(BEFORE_INSERT: new=(id=3, data=3))(AFTER_INSERT: new=(id=3, data=3))
|
|
drop trigger t1_bd;
|
|
drop trigger t1_ad;
|
|
set @log:= "";
|
|
replace t1 values (1, 5);
|
|
select @log;
|
|
@log
|
|
(BEFORE_INSERT: new=(id=1, data=5))(AFTER_INSERT: new=(id=1, data=5))
|
|
drop table t1;
|
|
create table t1 (id int primary key, data varchar(10), fk int);
|
|
create table t2 (event varchar(100));
|
|
create table t3 (id int primary key);
|
|
create trigger t1_ai after insert on t1 for each row
|
|
insert into t2 values (concat("INSERT INTO t1 id=", new.id, " data='", new.data, "'"));
|
|
insert into t1 (id, data) values (1, "one"), (2, "two");
|
|
select * from t1;
|
|
id data fk
|
|
1 one NULL
|
|
2 two NULL
|
|
select * from t2;
|
|
event
|
|
INSERT INTO t1 id=1 data='one'
|
|
INSERT INTO t1 id=2 data='two'
|
|
drop trigger t1_ai;
|
|
create trigger t1_bi before insert on t1 for each row
|
|
begin
|
|
if exists (select id from t3 where id=new.fk) then
|
|
insert into t2 values (concat("INSERT INTO t1 id=", new.id, " data='", new.data, "' fk=", new.fk));
|
|
else
|
|
insert into t2 values (concat("INSERT INTO t1 FAILED id=", new.id, " data='", new.data, "' fk=", new.fk));
|
|
set new.id= NULL;
|
|
end if;
|
|
end|
|
|
insert into t3 values (1);
|
|
insert into t1 values (4, "four", 1), (5, "five", 2);
|
|
ERROR 23000: Column 'id' cannot be null
|
|
select * from t1;
|
|
id data fk
|
|
1 one NULL
|
|
2 two NULL
|
|
4 four 1
|
|
select * from t2;
|
|
event
|
|
INSERT INTO t1 id=1 data='one'
|
|
INSERT INTO t1 id=2 data='two'
|
|
INSERT INTO t1 id=4 data='four' fk=1
|
|
INSERT INTO t1 FAILED id=5 data='five' fk=2
|
|
drop table t1, t2, t3;
|
|
create table t1 (id int primary key, data varchar(10));
|
|
create table t2 (seq int);
|
|
insert into t2 values (10);
|
|
create function f1 () returns int return (select max(seq) from t2);
|
|
create trigger t1_bi before insert on t1 for each row
|
|
begin
|
|
if new.id > f1() then
|
|
set new.id:= f1();
|
|
end if;
|
|
end|
|
|
insert into t1 values (1, "first");
|
|
insert into t1 values (f1(), "max");
|
|
select * from t1;
|
|
id data
|
|
1 first
|
|
10 max
|
|
drop table t1, t2;
|
|
drop function f1;
|
|
create table t1 (id int primary key, fk_t2 int);
|
|
create table t2 (id int primary key, fk_t3 int);
|
|
create table t3 (id int primary key);
|
|
insert into t1 values (1,1), (2,1), (3,2);
|
|
insert into t2 values (1,1), (2,2);
|
|
insert into t3 values (1), (2);
|
|
create trigger t3_ad after delete on t3 for each row
|
|
delete from t2 where fk_t3=old.id;
|
|
create trigger t2_ad after delete on t2 for each row
|
|
delete from t1 where fk_t2=old.id;
|
|
delete from t3 where id = 1;
|
|
select * from t1 left join (t2 left join t3 on t2.fk_t3 = t3.id) on t1.fk_t2 = t2.id;
|
|
id fk_t2 id fk_t3 id
|
|
3 2 2 2 2
|
|
drop table t1, t2, t3;
|
|
create table t1 (id int primary key, copy int);
|
|
create table t2 (id int primary key, data int);
|
|
insert into t2 values (1,1), (2,2);
|
|
create trigger t1_bi before insert on t1 for each row
|
|
set new.copy= (select data from t2 where id = new.id);
|
|
create trigger t1_bu before update on t1 for each row
|
|
set new.copy= (select data from t2 where id = new.id);
|
|
insert into t1 values (1,3), (2,4), (3,3);
|
|
update t1 set copy= 1 where id = 2;
|
|
select * from t1;
|
|
id copy
|
|
1 1
|
|
2 2
|
|
3 NULL
|
|
drop table t1, t2;
|
|
create table t1 (i int);
|
|
create table t3 (i int);
|
|
create trigger trg before insert on t1 for each row set @a:= old.i;
|
|
ERROR HY000: There is no OLD row in on INSERT trigger
|
|
create trigger trg before delete on t1 for each row set @a:= new.i;
|
|
ERROR HY000: There is no NEW row in on DELETE trigger
|
|
create trigger trg before update on t1 for each row set old.i:=1;
|
|
ERROR HY000: Updating of OLD row is not allowed in trigger
|
|
create trigger trg before delete on t1 for each row set new.i:=1;
|
|
ERROR HY000: There is no NEW row in on DELETE trigger
|
|
create trigger trg after update on t1 for each row set new.i:=1;
|
|
ERROR HY000: Updating of NEW row is not allowed in after trigger
|
|
create trigger trg before update on t1 for each row set new.j:=1;
|
|
ERROR 42S22: Unknown column 'j' in 'NEW'
|
|
create trigger trg before update on t1 for each row set @a:=old.j;
|
|
ERROR 42S22: Unknown column 'j' in 'OLD'
|
|
create trigger trg before insert on t2 for each row set @a:=1;
|
|
ERROR 42S02: Table 'test.t2' doesn't exist
|
|
create trigger trg before insert on t1 for each row set @a:=1;
|
|
create trigger trg after insert on t1 for each row set @a:=1;
|
|
ERROR HY000: Trigger already exists
|
|
create trigger trg2 before insert on t1 for each row set @a:=1;
|
|
ERROR HY000: Trigger already exists
|
|
create trigger trg before insert on t3 for each row set @a:=1;
|
|
ERROR HY000: Trigger already exists
|
|
create trigger trg2 before insert on t3 for each row set @a:=1;
|
|
drop trigger trg2;
|
|
drop trigger trg;
|
|
drop trigger trg;
|
|
ERROR HY000: Trigger does not exist
|
|
create view v1 as select * from t1;
|
|
create trigger trg before insert on v1 for each row set @a:=1;
|
|
ERROR HY000: 'test.v1' is not BASE TABLE
|
|
drop view v1;
|
|
drop table t1;
|
|
drop table t3;
|
|
create temporary table t1 (i int);
|
|
create trigger trg before insert on t1 for each row set @a:=1;
|
|
ERROR HY000: Trigger's 't1' is view or temporary table
|
|
drop table t1;
|
|
create table t1 (x1col char);
|
|
create trigger tx1 before insert on t1 for each row set new.x1col = 'x';
|
|
insert into t1 values ('y');
|
|
drop trigger tx1;
|
|
drop table t1;
|
|
create table t1 (i int) engine=myisam;
|
|
insert into t1 values (1), (2);
|
|
create trigger trg1 before delete on t1 for each row set @del_before:= @del_before + old.i;
|
|
create trigger trg2 after delete on t1 for each row set @del_after:= @del_after + old.i;
|
|
set @del_before:=0, @del_after:= 0;
|
|
delete from t1;
|
|
select @del_before, @del_after;
|
|
@del_before @del_after
|
|
3 3
|
|
drop trigger trg1;
|
|
drop trigger trg2;
|
|
drop table t1;
|
|
create table t1 (a int);
|
|
create trigger trg1 before insert on t1 for each row set new.a= 10;
|
|
drop table t1;
|
|
create table t1 (a int);
|
|
insert into t1 values ();
|
|
select * from t1;
|
|
a
|
|
NULL
|
|
drop table t1;
|
|
create database mysqltest;
|
|
use mysqltest;
|
|
create table t1 (i int);
|
|
create trigger trg1 before insert on t1 for each row set @a:= 1;
|
|
drop database mysqltest;
|
|
use test;
|
|
create database mysqltest;
|
|
create table mysqltest.t1 (i int);
|
|
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
|
|
drop database mysqltest;
|
|
use test;
|
|
create table t1 (i int, j int default 10, k int not null, key (k));
|
|
create table t2 (i int);
|
|
insert into t1 (i, k) values (1, 1);
|
|
insert into t2 values (1);
|
|
create trigger trg1 before update on t1 for each row set @a:= @a + new.j - old.j;
|
|
create trigger trg2 after update on t1 for each row set @b:= "Fired";
|
|
set @a:= 0, @b:= "";
|
|
update t1, t2 set j = j + 10 where t1.i = t2.i;
|
|
select @a, @b;
|
|
@a @b
|
|
10 Fired
|
|
insert into t1 values (2, 13, 2);
|
|
insert into t2 values (2);
|
|
set @a:= 0, @b:= "";
|
|
update t1, t2 set j = j + 15 where t1.i = t2.i and t1.k >= 2;
|
|
select @a, @b;
|
|
@a @b
|
|
15 Fired
|
|
create trigger trg3 before delete on t1 for each row set @c:= @c + old.j;
|
|
create trigger trg4 before delete on t2 for each row set @d:= @d + old.i;
|
|
create trigger trg5 after delete on t1 for each row set @e:= "After delete t1 fired";
|
|
create trigger trg6 after delete on t2 for each row set @f:= "After delete t2 fired";
|
|
set @c:= 0, @d:= 0, @e:= "", @f:= "";
|
|
delete t1, t2 from t1, t2 where t1.i = t2.i;
|
|
select @c, @d, @e, @f;
|
|
@c @d @e @f
|
|
48 3 After delete t1 fired After delete t2 fired
|
|
drop table t1, t2;
|
|
create table t1 (i int, j int default 10)|
|
|
create table t2 (i int)|
|
|
insert into t2 values (1), (2)|
|
|
create trigger trg1 before insert on t1 for each row
|
|
begin
|
|
if new.i = 1 then
|
|
set new.j := 1;
|
|
end if;
|
|
end|
|
|
create trigger trg2 after insert on t1 for each row set @a:= 1|
|
|
set @a:= 0|
|
|
insert into t1 (i) select * from t2|
|
|
select * from t1|
|
|
i j
|
|
1 1
|
|
2 10
|
|
select @a|
|
|
@a
|
|
1
|
|
drop table t1, t2|
|
|
create table t1 (i int, j int, k int);
|
|
create trigger trg1 before insert on t1 for each row set new.k = new.i;
|
|
create trigger trg2 after insert on t1 for each row set @b:= "Fired";
|
|
set @b:="";
|
|
load data infile '../std_data_ln/rpl_loaddata.dat' into table t1 (@a, i);
|
|
select *, @b from t1;
|
|
i j k @b
|
|
10 NULL 10 Fired
|
|
15 NULL 15 Fired
|
|
set @b:="";
|
|
load data infile '../std_data_ln/loaddata5.dat' into table t1 fields terminated by '' enclosed by '' (i, j);
|
|
select *, @b from t1;
|
|
i j k @b
|
|
10 NULL 10 Fired
|
|
15 NULL 15 Fired
|
|
1 2 1 Fired
|
|
3 4 3 Fired
|
|
5 6 5 Fired
|
|
drop table t1;
|
|
create table t1 (i int, at int, k int, key(k)) engine=myisam;
|
|
create table t2 (i int);
|
|
insert into t1 values (1, 1, 1);
|
|
insert into t2 values (1), (2), (3);
|
|
create trigger ai after insert on t1 for each row set @a:= new.at;
|
|
create trigger au after update on t1 for each row set @a:= new.at;
|
|
create trigger ad after delete on t1 for each row set @a:= old.at;
|
|
alter table t1 drop column at;
|
|
select * from t1;
|
|
i k
|
|
1 1
|
|
insert into t1 values (2, 1);
|
|
ERROR 42S22: Unknown column 'at' in 'NEW'
|
|
select * from t1;
|
|
i k
|
|
1 1
|
|
2 1
|
|
update t1 set k = 2 where i = 2;
|
|
ERROR 42S22: Unknown column 'at' in 'NEW'
|
|
select * from t1;
|
|
i k
|
|
1 1
|
|
2 2
|
|
delete from t1 where i = 2;
|
|
ERROR 42S22: Unknown column 'at' in 'OLD'
|
|
select * from t1;
|
|
i k
|
|
1 1
|
|
load data infile '../std_data_ln/loaddata5.dat' into table t1 fields terminated by '' enclosed by '' (i, k);
|
|
ERROR 42S22: Unknown column 'at' in 'NEW'
|
|
select * from t1;
|
|
i k
|
|
1 1
|
|
1 2
|
|
insert into t1 select 3, 3;
|
|
ERROR 42S22: Unknown column 'at' in 'NEW'
|
|
select * from t1;
|
|
i k
|
|
1 1
|
|
1 2
|
|
3 3
|
|
update t1, t2 set k = k + 10 where t1.i = t2.i;
|
|
ERROR 42S22: Unknown column 'at' in 'NEW'
|
|
select * from t1;
|
|
i k
|
|
1 11
|
|
1 2
|
|
3 3
|
|
update t1, t2 set k = k + 10 where t1.i = t2.i and k < 3;
|
|
ERROR 42S22: Unknown column 'at' in 'NEW'
|
|
select * from t1;
|
|
i k
|
|
1 11
|
|
1 12
|
|
3 3
|
|
delete t1, t2 from t1 straight_join t2 where t1.i = t2.i;
|
|
ERROR 42S22: Unknown column 'at' in 'OLD'
|
|
select * from t1;
|
|
i k
|
|
1 12
|
|
3 3
|
|
delete t2, t1 from t2 straight_join t1 where t1.i = t2.i;
|
|
ERROR 42S22: Unknown column 'at' in 'OLD'
|
|
select * from t1;
|
|
i k
|
|
3 3
|
|
alter table t1 add primary key (i);
|
|
insert into t1 values (3, 4) on duplicate key update k= k + 10;
|
|
ERROR 42S22: Unknown column 'at' in 'NEW'
|
|
select * from t1;
|
|
i k
|
|
3 13
|
|
replace into t1 values (3, 3);
|
|
ERROR 42S22: Unknown column 'at' in 'OLD'
|
|
select * from t1;
|
|
i k
|
|
drop table t1, t2;
|
|
create table t1 (i int, bt int, k int, key(k)) engine=myisam;
|
|
create table t2 (i int);
|
|
insert into t1 values (1, 1, 1), (2, 2, 2);
|
|
insert into t2 values (1), (2), (3);
|
|
create trigger bi before insert on t1 for each row set @a:= new.bt;
|
|
create trigger bu before update on t1 for each row set @a:= new.bt;
|
|
create trigger bd before delete on t1 for each row set @a:= old.bt;
|
|
alter table t1 drop column bt;
|
|
insert into t1 values (3, 3);
|
|
ERROR 42S22: Unknown column 'bt' in 'NEW'
|
|
select * from t1;
|
|
i k
|
|
1 1
|
|
2 2
|
|
update t1 set i = 2;
|
|
ERROR 42S22: Unknown column 'bt' in 'NEW'
|
|
select * from t1;
|
|
i k
|
|
1 1
|
|
2 2
|
|
delete from t1;
|
|
ERROR 42S22: Unknown column 'bt' in 'OLD'
|
|
select * from t1;
|
|
i k
|
|
1 1
|
|
2 2
|
|
load data infile '../std_data_ln/loaddata5.dat' into table t1 fields terminated by '' enclosed by '' (i, k);
|
|
ERROR 42S22: Unknown column 'bt' in 'NEW'
|
|
select * from t1;
|
|
i k
|
|
1 1
|
|
2 2
|
|
insert into t1 select 3, 3;
|
|
ERROR 42S22: Unknown column 'bt' in 'NEW'
|
|
select * from t1;
|
|
i k
|
|
1 1
|
|
2 2
|
|
update t1, t2 set k = k + 10 where t1.i = t2.i;
|
|
ERROR 42S22: Unknown column 'bt' in 'NEW'
|
|
select * from t1;
|
|
i k
|
|
1 1
|
|
2 2
|
|
update t1, t2 set k = k + 10 where t1.i = t2.i and k < 2;
|
|
ERROR 42S22: Unknown column 'bt' in 'NEW'
|
|
select * from t1;
|
|
i k
|
|
1 1
|
|
2 2
|
|
delete t1, t2 from t1 straight_join t2 where t1.i = t2.i;
|
|
ERROR 42S22: Unknown column 'bt' in 'OLD'
|
|
select * from t1;
|
|
i k
|
|
1 1
|
|
2 2
|
|
delete t2, t1 from t2 straight_join t1 where t1.i = t2.i;
|
|
ERROR 42S22: Unknown column 'bt' in 'OLD'
|
|
select * from t1;
|
|
i k
|
|
1 1
|
|
2 2
|
|
alter table t1 add primary key (i);
|
|
drop trigger bi;
|
|
insert into t1 values (2, 4) on duplicate key update k= k + 10;
|
|
ERROR 42S22: Unknown column 'bt' in 'NEW'
|
|
select * from t1;
|
|
i k
|
|
1 1
|
|
2 2
|
|
replace into t1 values (2, 4);
|
|
ERROR 42S22: Unknown column 'bt' in 'OLD'
|
|
select * from t1;
|
|
i k
|
|
1 1
|
|
2 2
|
|
drop table t1, t2;
|
|
drop function if exists bug5893;
|
|
create table t1 (col1 int, col2 int);
|
|
insert into t1 values (1, 2);
|
|
create function bug5893 () returns int return 5;
|
|
create trigger t1_bu before update on t1 for each row set new.col1= bug5893();
|
|
drop function bug5893;
|
|
update t1 set col2 = 4;
|
|
ERROR 42000: FUNCTION test.bug5893 does not exist
|
|
drop trigger t1_bu;
|
|
drop table t1;
|
|
set sql_mode='ansi';
|
|
create table t1 ("t1 column" int);
|
|
create trigger t1_bi before insert on t1 for each row set new."t1 column" = 5;
|
|
set sql_mode="";
|
|
insert into t1 values (0);
|
|
create trigger t1_af after insert on t1 for each row set @a=10;
|
|
insert into t1 values (0);
|
|
select * from t1;
|
|
t1 column
|
|
5
|
|
5
|
|
select @a;
|
|
@a
|
|
10
|
|
show triggers;
|
|
Trigger Event Table Statement Timing Created sql_mode Definer
|
|
t1_bi INSERT t1 set new."t1 column" = 5 BEFORE # REAL_AS_FLOAT,PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,ANSI root@localhost
|
|
t1_af INSERT t1 set @a=10 AFTER # root@localhost
|
|
drop table t1;
|
|
set sql_mode="traditional";
|
|
create table t1 (a date);
|
|
insert into t1 values ('2004-01-00');
|
|
ERROR 22007: Incorrect date value: '2004-01-00' for column 'a' at row 1
|
|
set sql_mode="";
|
|
create trigger t1_bi before insert on t1 for each row set new.a = '2004-01-00';
|
|
set sql_mode="traditional";
|
|
insert into t1 values ('2004-01-01');
|
|
select * from t1;
|
|
a
|
|
2004-01-00
|
|
set sql_mode=default;
|
|
show create table t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`a` date default NULL
|
|
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
|
show triggers;
|
|
Trigger Event Table Statement Timing Created sql_mode Definer
|
|
t1_bi INSERT t1 set new.a = '2004-01-00' BEFORE # root@localhost
|
|
drop table t1;
|
|
create table t1 (id int);
|
|
create trigger t1_ai after insert on t1 for each row flush tables;
|
|
ERROR 0A000: FLUSH is not allowed in stored function or trigger
|
|
create trigger t1_ai after insert on t1 for each row flush privileges;
|
|
ERROR 0A000: FLUSH is not allowed in stored function or trigger
|
|
create procedure p1() flush tables;
|
|
create trigger t1_ai after insert on t1 for each row call p1();
|
|
insert into t1 values (0);
|
|
ERROR 0A000: FLUSH is not allowed in stored function or trigger
|
|
drop procedure p1;
|
|
create procedure p1() flush privileges;
|
|
insert into t1 values (0);
|
|
ERROR 0A000: FLUSH is not allowed in stored function or trigger
|
|
drop procedure p1;
|
|
drop table t1;
|
|
create table t1 (id int, data int, username varchar(16));
|
|
insert into t1 (id, data) values (1, 0);
|
|
create trigger t1_whoupdated before update on t1 for each row
|
|
begin
|
|
declare user varchar(32);
|
|
declare i int;
|
|
select user() into user;
|
|
set NEW.username = user;
|
|
select count(*) from ((select 1) union (select 2)) as d1 into i;
|
|
end|
|
|
update t1 set data = 1;
|
|
update t1 set data = 2;
|
|
drop table t1;
|
|
create table t1 (c1 int, c2 datetime);
|
|
create trigger tr1 before insert on t1 for each row
|
|
begin
|
|
set new.c2= '2004-04-01';
|
|
select 'hello';
|
|
end|
|
|
ERROR 0A000: Not allowed to return a result set from a trigger
|
|
insert into t1 (c1) values (1),(2),(3);
|
|
select * from t1;
|
|
c1 c2
|
|
1 NULL
|
|
2 NULL
|
|
3 NULL
|
|
drop procedure if exists bug11587;
|
|
create procedure bug11587(x char(16))
|
|
begin
|
|
select "hello";
|
|
select "hello again";
|
|
end|
|
|
create trigger tr1 before insert on t1 for each row
|
|
begin
|
|
call bug11587();
|
|
set new.c2= '2004-04-02';
|
|
end|
|
|
insert into t1 (c1) values (4),(5),(6);
|
|
ERROR 0A000: Not allowed to return a result set from a trigger
|
|
select * from t1;
|
|
c1 c2
|
|
1 NULL
|
|
2 NULL
|
|
3 NULL
|
|
drop procedure bug11587;
|
|
drop table t1;
|
|
create table t1 (f1 integer);
|
|
create table t2 (f2 integer);
|
|
create trigger t1_ai after insert on t1
|
|
for each row insert into t2 values (new.f1+1);
|
|
create trigger t2_ai after insert on t2
|
|
for each row insert into t1 values (new.f2+1);
|
|
set @SAVE_SP_RECURSION_LEVELS=@@max_sp_recursion_depth;
|
|
set @@max_sp_recursion_depth=100;
|
|
insert into t1 values (1);
|
|
ERROR HY000: Can't update table 't1' in stored function/trigger because it is already used by statement which invoked this stored function/trigger.
|
|
set @@max_sp_recursion_depth=@SAVE_SP_RECURSION_LEVELS;
|
|
select * from t1;
|
|
f1
|
|
1
|
|
select * from t2;
|
|
f2
|
|
2
|
|
drop trigger t1_ai;
|
|
drop trigger t2_ai;
|
|
create trigger t1_bu before update on t1
|
|
for each row insert into t1 values (2);
|
|
update t1 set f1= 10;
|
|
ERROR HY000: Can't update table 't1' in stored function/trigger because it is already used by statement which invoked this stored function/trigger.
|
|
select * from t1;
|
|
f1
|
|
1
|
|
drop trigger t1_bu;
|
|
create trigger t1_bu before update on t1
|
|
for each row delete from t1 where f1=new.f1;
|
|
update t1 set f1= 10;
|
|
ERROR HY000: Can't update table 't1' in stored function/trigger because it is already used by statement which invoked this stored function/trigger.
|
|
select * from t1;
|
|
f1
|
|
1
|
|
drop trigger t1_bu;
|
|
create trigger t1_bi before insert on t1
|
|
for each row set new.f1=(select sum(f1) from t1);
|
|
insert into t1 values (3);
|
|
select * from t1;
|
|
f1
|
|
1
|
|
1
|
|
drop trigger t1_bi;
|
|
drop tables t1, t2;
|
|
create table t1 (id int);
|
|
create table t2 (id int);
|
|
create trigger t1_bi before insert on t1 for each row insert into t2 values (new.id);
|
|
prepare stmt1 from "insert into t1 values (10)";
|
|
create procedure p1() insert into t1 values (10);
|
|
call p1();
|
|
drop trigger t1_bi;
|
|
execute stmt1;
|
|
call p1();
|
|
deallocate prepare stmt1;
|
|
drop procedure p1;
|
|
create table t3 (id int);
|
|
create trigger t1_bi after insert on t1 for each row insert into t2 values (new.id);
|
|
prepare stmt1 from "insert into t1 values (10)";
|
|
create procedure p1() insert into t1 values (10);
|
|
call p1();
|
|
drop trigger t1_bi;
|
|
create trigger t1_bi after insert on t1 for each row insert into t3 values (new.id);
|
|
execute stmt1;
|
|
ERROR HY000: Table 't3' was not locked with LOCK TABLES
|
|
call p1();
|
|
ERROR HY000: Table 't3' was not locked with LOCK TABLES
|
|
deallocate prepare stmt1;
|
|
drop procedure p1;
|
|
drop table t1, t2, t3;
|
|
create table t1 (a int);
|
|
CREATE PROCEDURE `p1`()
|
|
begin
|
|
insert into t1 values (1);
|
|
end//
|
|
create trigger trg before insert on t1 for each row
|
|
begin
|
|
declare done int default 0;
|
|
set done= not done;
|
|
end//
|
|
CALL p1();
|
|
drop procedure p1;
|
|
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
|
|
drop trigger t1_bi;
|
|
ERROR 3D000: No database selected
|
|
create table t1 (id int);
|
|
create trigger t1_bi before insert on t1 for each row set @a:=new.id;
|
|
create trigger t1_ai after insert on test.t1 for each row set @b:=new.id;
|
|
insert into t1 values (101);
|
|
select @a, @b;
|
|
@a @b
|
|
101 101
|
|
select trigger_schema, trigger_name, event_object_schema,
|
|
event_object_table, action_statement from information_schema.triggers
|
|
where event_object_schema = 'test';
|
|
trigger_schema trigger_name event_object_schema event_object_table action_statement
|
|
test t1_bi test t1 set @a:=new.id
|
|
test t1_ai test t1 set @b:=new.id
|
|
rename table t1 to t2;
|
|
insert into t2 values (102);
|
|
select @a, @b;
|
|
@a @b
|
|
102 102
|
|
select trigger_schema, trigger_name, event_object_schema,
|
|
event_object_table, action_statement from information_schema.triggers
|
|
where event_object_schema = 'test';
|
|
trigger_schema trigger_name event_object_schema event_object_table action_statement
|
|
test t1_bi test t2 set @a:=new.id
|
|
test t1_ai test t2 set @b:=new.id
|
|
alter table t2 rename to t3;
|
|
insert into t3 values (103);
|
|
select @a, @b;
|
|
@a @b
|
|
103 103
|
|
select trigger_schema, trigger_name, event_object_schema,
|
|
event_object_table, action_statement from information_schema.triggers
|
|
where event_object_schema = 'test';
|
|
trigger_schema trigger_name event_object_schema event_object_table action_statement
|
|
test t1_bi test t3 set @a:=new.id
|
|
test t1_ai test t3 set @b:=new.id
|
|
alter table t3 rename to t4, add column val int default 0;
|
|
insert into t4 values (104, 1);
|
|
select @a, @b;
|
|
@a @b
|
|
104 104
|
|
select trigger_schema, trigger_name, event_object_schema,
|
|
event_object_table, action_statement from information_schema.triggers
|
|
where event_object_schema = 'test';
|
|
trigger_schema trigger_name event_object_schema event_object_table action_statement
|
|
test t1_bi test t4 set @a:=new.id
|
|
test t1_ai test t4 set @b:=new.id
|
|
drop trigger t1_bi;
|
|
drop trigger t1_ai;
|
|
drop table t4;
|
|
create database mysqltest;
|
|
use mysqltest;
|
|
create table t1 (id int);
|
|
create trigger t1_bi before insert on t1 for each row set @a:=new.id;
|
|
insert into t1 values (101);
|
|
select @a;
|
|
@a
|
|
101
|
|
select trigger_schema, trigger_name, event_object_schema,
|
|
event_object_table, action_statement from information_schema.triggers
|
|
where event_object_schema = 'test' or event_object_schema = 'mysqltest';
|
|
trigger_schema trigger_name event_object_schema event_object_table action_statement
|
|
mysqltest t1_bi mysqltest t1 set @a:=new.id
|
|
rename table t1 to test.t2;
|
|
ERROR HY000: Trigger in wrong schema
|
|
insert into t1 values (102);
|
|
select @a;
|
|
@a
|
|
102
|
|
select trigger_schema, trigger_name, event_object_schema,
|
|
event_object_table, action_statement from information_schema.triggers
|
|
where event_object_schema = 'test' or event_object_schema = 'mysqltest';
|
|
trigger_schema trigger_name event_object_schema event_object_table action_statement
|
|
mysqltest t1_bi mysqltest t1 set @a:=new.id
|
|
drop trigger test.t1_bi;
|
|
ERROR HY000: Trigger does not exist
|
|
alter table t1 rename to test.t1;
|
|
ERROR HY000: Trigger in wrong schema
|
|
insert into t1 values (103);
|
|
select @a;
|
|
@a
|
|
103
|
|
select trigger_schema, trigger_name, event_object_schema,
|
|
event_object_table, action_statement from information_schema.triggers
|
|
where event_object_schema = 'test' or event_object_schema = 'mysqltest';
|
|
trigger_schema trigger_name event_object_schema event_object_table action_statement
|
|
mysqltest t1_bi mysqltest t1 set @a:=new.id
|
|
drop trigger test.t1_bi;
|
|
ERROR HY000: Trigger does not exist
|
|
alter table t1 rename to test.t1, add column val int default 0;
|
|
ERROR HY000: Trigger in wrong schema
|
|
insert into t1 values (104);
|
|
select @a;
|
|
@a
|
|
104
|
|
select trigger_schema, trigger_name, event_object_schema,
|
|
event_object_table, action_statement from information_schema.triggers
|
|
where event_object_schema = 'test' or event_object_schema = 'mysqltest';
|
|
trigger_schema trigger_name event_object_schema event_object_table action_statement
|
|
mysqltest t1_bi mysqltest t1 set @a:=new.id
|
|
show create table t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`id` int(11) default NULL
|
|
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
|
drop trigger test.t1_bi;
|
|
ERROR HY000: Trigger does not exist
|
|
drop trigger t1_bi;
|
|
drop table t1;
|
|
drop database mysqltest;
|
|
use test;
|
|
create table t1 (id int);
|
|
create trigger t1_bi before insert on t1 for each row set @a:=new.id;
|
|
create trigger t1_ai after insert on t1 for each row set @b:=new.id;
|
|
insert into t1 values (101);
|
|
select @a, @b;
|
|
@a @b
|
|
101 101
|
|
select trigger_schema, trigger_name, event_object_schema,
|
|
event_object_table, action_statement from information_schema.triggers
|
|
where event_object_schema = 'test';
|
|
trigger_schema trigger_name event_object_schema event_object_table action_statement
|
|
test t1_bi test t1 set @a:=new.id
|
|
test t1_ai test t1 set @b:=new.id
|
|
rename table t1 to t2;
|
|
ERROR HY000: Can't create/write to file './test/t1_ai.TRN~' (Errcode: 13)
|
|
insert into t1 values (102);
|
|
select @a, @b;
|
|
@a @b
|
|
102 102
|
|
select trigger_schema, trigger_name, event_object_schema,
|
|
event_object_table, action_statement from information_schema.triggers
|
|
where event_object_schema = 'test';
|
|
trigger_schema trigger_name event_object_schema event_object_table action_statement
|
|
test t1_bi test t1 set @a:=new.id
|
|
test t1_ai test t1 set @b:=new.id
|
|
drop trigger t1_bi;
|
|
drop trigger t1_ai;
|
|
drop table t1;
|
|
create table t1 (i int);
|
|
create trigger t1_bi before insert on t1 for each row return 0;
|
|
ERROR 42000: RETURN is only allowed in a FUNCTION
|
|
insert into t1 values (1);
|
|
drop table t1;
|
|
create table t1 (a varchar(64), b int);
|
|
create table t2 like t1;
|
|
create trigger t1_ai after insert on t1 for each row
|
|
set @a:= (select max(a) from t1);
|
|
insert into t1 (a) values
|
|
("Twas"),("brillig"),("and"),("the"),("slithy"),("toves"),
|
|
("Did"),("gyre"),("and"),("gimble"),("in"),("the"),("wabe");
|
|
create trigger t2_ai after insert on t2 for each row
|
|
set @a:= (select max(a) from t2);
|
|
insert into t2 select * from t1;
|
|
load data infile '../std_data_ln/words.dat' into table t1 (a);
|
|
drop trigger t1_ai;
|
|
drop trigger t2_ai;
|
|
create function f1() returns int return (select max(b) from t1);
|
|
insert into t1 values
|
|
("All",f1()),("mimsy",f1()),("were",f1()),("the",f1()),("borogoves",f1()),
|
|
("And",f1()),("the",f1()),("mome", f1()),("raths",f1()),("outgrabe",f1());
|
|
create function f2() returns int return (select max(b) from t2);
|
|
insert into t2 select a, f2() from t1;
|
|
load data infile '../std_data_ln/words.dat' into table t1 (a) set b:= f1();
|
|
drop table t1, t2;
|
|
drop function f1;
|
|
drop function f2;
|
|
create table t1(i int not null, j int not null, n numeric(15,2), primary key(i,j));
|
|
create table t2(i int not null, n numeric(15,2), primary key(i));
|
|
create trigger t1_ai after insert on t1 for each row
|
|
begin
|
|
declare sn numeric(15,2);
|
|
select sum(n) into sn from t1 where i=new.i;
|
|
replace into t2 values(new.i, sn);
|
|
end|
|
|
insert into t1 values
|
|
(1,1,10.00),(1,2,10.00),(1,3,10.00),(1,4,10.00),(1,5,10.00),
|
|
(1,6,10.00),(1,7,10.00),(1,8,10.00),(1,9,10.00),(1,10,10.00),
|
|
(1,11,10.00),(1,12,10.00),(1,13,10.00),(1,14,10.00),(1,15,10.00);
|
|
select * from t1;
|
|
i j n
|
|
1 1 10.00
|
|
1 2 10.00
|
|
1 3 10.00
|
|
1 4 10.00
|
|
1 5 10.00
|
|
1 6 10.00
|
|
1 7 10.00
|
|
1 8 10.00
|
|
1 9 10.00
|
|
1 10 10.00
|
|
1 11 10.00
|
|
1 12 10.00
|
|
1 13 10.00
|
|
1 14 10.00
|
|
1 15 10.00
|
|
select * from t2;
|
|
i n
|
|
1 150.00
|
|
drop tables t1, t2;
|
|
DROP TABLE IF EXISTS t1;
|
|
CREATE TABLE t1 (
|
|
conn_id INT,
|
|
trigger_conn_id INT
|
|
);
|
|
CREATE TRIGGER t1_bi BEFORE INSERT ON t1 FOR EACH ROW
|
|
SET NEW.trigger_conn_id = CONNECTION_ID();
|
|
INSERT INTO t1 (conn_id, trigger_conn_id) VALUES (CONNECTION_ID(), -1);
|
|
INSERT INTO t1 (conn_id, trigger_conn_id) VALUES (CONNECTION_ID(), -1);
|
|
SELECT * FROM t1 WHERE conn_id != trigger_conn_id;
|
|
conn_id trigger_conn_id
|
|
DROP TRIGGER t1_bi;
|
|
DROP TABLE t1;
|
|
DROP TABLE IF EXISTS t1;
|
|
CREATE TABLE t1 (i1 INT);
|
|
SET @save_sql_mode=@@sql_mode;
|
|
SET SQL_MODE='';
|
|
CREATE TRIGGER t1_ai AFTER INSERT ON t1 FOR EACH ROW
|
|
SET @x = 5/0;
|
|
SET SQL_MODE='traditional';
|
|
CREATE TRIGGER t1_au AFTER UPDATE ON t1 FOR EACH ROW
|
|
SET @x = 5/0;
|
|
SET @x=1;
|
|
INSERT INTO t1 VALUES (@x);
|
|
SELECT @x;
|
|
@x
|
|
NULL
|
|
SET @x=2;
|
|
UPDATE t1 SET i1 = @x;
|
|
ERROR 22012: Division by 0
|
|
SELECT @x;
|
|
@x
|
|
2
|
|
SET SQL_MODE='';
|
|
SET @x=3;
|
|
INSERT INTO t1 VALUES (@x);
|
|
SELECT @x;
|
|
@x
|
|
NULL
|
|
SET @x=4;
|
|
UPDATE t1 SET i1 = @x;
|
|
ERROR 22012: Division by 0
|
|
SELECT @x;
|
|
@x
|
|
4
|
|
SET @@sql_mode=@save_sql_mode;
|
|
DROP TRIGGER t1_ai;
|
|
DROP TRIGGER t1_au;
|
|
DROP TABLE t1;
|
|
DROP TABLE IF EXISTS t1;
|
|
DROP PROCEDURE IF EXISTS p1;
|
|
DROP PROCEDURE IF EXISTS p2;
|
|
CREATE TABLE t1 (i1 INT);
|
|
INSERT INTO t1 VALUES (3);
|
|
CREATE PROCEDURE p1(OUT i1 INT) DETERMINISTIC NO SQL SET i1 = 5;
|
|
CREATE PROCEDURE p2(INOUT i1 INT) DETERMINISTIC NO SQL SET i1 = i1 * 7;
|
|
CREATE TRIGGER t1_bu BEFORE UPDATE ON t1 FOR EACH ROW
|
|
BEGIN
|
|
CALL p1(NEW.i1);
|
|
CALL p2(NEW.i1);
|
|
END//
|
|
UPDATE t1 SET i1 = 11 WHERE i1 = 3;
|
|
DROP TRIGGER t1_bu;
|
|
DROP PROCEDURE p2;
|
|
DROP PROCEDURE p1;
|
|
INSERT INTO t1 VALUES (13);
|
|
CREATE PROCEDURE p1(OUT i1 INT) DETERMINISTIC NO SQL SET @a = 17;
|
|
CREATE TRIGGER t1_bu BEFORE UPDATE ON t1 FOR EACH ROW
|
|
CALL p1(OLD.i1);
|
|
UPDATE t1 SET i1 = 19 WHERE i1 = 13;
|
|
ERROR 42000: OUT or INOUT argument 1 for routine test.p1 is not a variable or NEW pseudo-variable in BEFORE trigger
|
|
DROP TRIGGER t1_bu;
|
|
DROP PROCEDURE p1;
|
|
INSERT INTO t1 VALUES (23);
|
|
CREATE PROCEDURE p1(INOUT i1 INT) DETERMINISTIC NO SQL SET @a = i1 * 29;
|
|
CREATE TRIGGER t1_bu BEFORE UPDATE ON t1 FOR EACH ROW
|
|
CALL p1(OLD.i1);
|
|
UPDATE t1 SET i1 = 31 WHERE i1 = 23;
|
|
ERROR 42000: OUT or INOUT argument 1 for routine test.p1 is not a variable or NEW pseudo-variable in BEFORE trigger
|
|
DROP TRIGGER t1_bu;
|
|
DROP PROCEDURE p1;
|
|
INSERT INTO t1 VALUES (37);
|
|
CREATE PROCEDURE p1(OUT i1 INT) DETERMINISTIC NO SQL SET @a = 41;
|
|
CREATE TRIGGER t1_au AFTER UPDATE ON t1 FOR EACH ROW
|
|
CALL p1(NEW.i1);
|
|
UPDATE t1 SET i1 = 43 WHERE i1 = 37;
|
|
ERROR 42000: OUT or INOUT argument 1 for routine test.p1 is not a variable or NEW pseudo-variable in BEFORE trigger
|
|
DROP TRIGGER t1_au;
|
|
DROP PROCEDURE p1;
|
|
INSERT INTO t1 VALUES (47);
|
|
CREATE PROCEDURE p1(INOUT i1 INT) DETERMINISTIC NO SQL SET @a = i1 * 49;
|
|
CREATE TRIGGER t1_au AFTER UPDATE ON t1 FOR EACH ROW
|
|
CALL p1(NEW.i1);
|
|
UPDATE t1 SET i1 = 51 WHERE i1 = 47;
|
|
ERROR 42000: OUT or INOUT argument 1 for routine test.p1 is not a variable or NEW pseudo-variable in BEFORE trigger
|
|
DROP TRIGGER t1_au;
|
|
DROP PROCEDURE p1;
|
|
SELECT * FROM t1;
|
|
i1
|
|
35
|
|
13
|
|
23
|
|
43
|
|
51
|
|
DROP TABLE t1;
|