mirror of
https://github.com/MariaDB/server.git
synced 2025-09-02 09:41:40 +03:00
Merge sanja.is.com.ua:/home/bell/mysql/bk/mysql-5.0
into sanja.is.com.ua:/home/bell/mysql/bk/work-show-5.0
This commit is contained in:
bell@sanja.is.com.ua
@@ -1820,6 +1820,19 @@ Ok
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Ok
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drop procedure bug5258|
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drop procedure bug5258_aux|
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create function bug4487() returns char
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begin
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declare v char;
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return v;
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end|
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Warnings:
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Warning 1311 Referring to uninitialized variable v
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select bug4487()|
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bug4487()
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NULL
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Warnings:
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Warning 1311 Referring to uninitialized variable v
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drop function bug4487|
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drop table if exists fac|
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create table fac (n int unsigned not null primary key, f bigint unsigned)|
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create procedure ifac(n int unsigned)
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171
mysql-test/r/trigger.result
Normal file
171
mysql-test/r/trigger.result
Normal file
@@ -0,0 +1,171 @@
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drop table if exists t1, t2;
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drop view if exists v1;
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create table t1 (i int);
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create trigger trg before insert on t1 for each row set @a:=1;
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set @a:=0;
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select @a;
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@a
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0
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insert into t1 values (1);
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select @a;
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@a
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1
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drop trigger t1.trg;
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create trigger trg before insert on t1 for each row set @a:=new.i;
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insert into t1 values (123);
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select @a;
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@a
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123
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drop trigger t1.trg;
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drop table t1;
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create table t1 (i int not null, j int);
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create trigger trg before insert on t1 for each row
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begin
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if isnull(new.j) then
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set new.j:= new.i * 10;
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end if;
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end|
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insert into t1 (i) values (1)|
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insert into t1 (i,j) values (2, 3)|
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select * from t1|
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i j
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1 10
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2 3
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drop trigger t1.trg|
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drop table t1|
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create table t1 (i int not null primary key);
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create trigger trg after insert on t1 for each row
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set @a:= if(@a,concat(@a, ":", new.i), new.i);
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set @a:="";
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insert into t1 values (2),(3),(4),(5);
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select @a;
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@a
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2:3:4:5
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drop trigger t1.trg;
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drop table t1;
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create table t1 (aid int not null primary key, balance int not null default 0);
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insert into t1 values (1, 1000), (2,3000);
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create trigger trg before update on t1 for each row
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begin
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declare loc_err varchar(255);
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if abs(new.balance - old.balance) > 1000 then
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set new.balance:= old.balance;
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set loc_err := concat("Too big change for aid = ", new.aid);
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set @update_failed:= if(@update_failed, concat(@a, ":", loc_err), loc_err);
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end if;
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end|
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set @update_failed:=""|
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update t1 set balance=1500|
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select @update_failed;
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select * from t1|
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@update_failed
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Too big change for aid = 2
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aid balance
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1 1500
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2 3000
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drop trigger t1.trg|
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drop table t1|
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create table t1 (i int);
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insert into t1 values (1),(2),(3),(4);
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create trigger trg after update on t1 for each row
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set @total_change:=@total_change + new.i - old.i;
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set @total_change:=0;
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update t1 set i=3;
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select @total_change;
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@total_change
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2
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drop trigger t1.trg;
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drop table t1;
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create table t1 (i int);
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insert into t1 values (1),(2),(3),(4);
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create trigger trg before delete on t1 for each row
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set @del_sum:= @del_sum + old.i;
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set @del_sum:= 0;
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delete from t1 where i <= 3;
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select @del_sum;
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@del_sum
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6
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drop trigger t1.trg;
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drop table t1;
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create table t1 (i int);
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insert into t1 values (1),(2),(3),(4);
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create trigger trg after delete on t1 for each row set @del:= 1;
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set @del:= 0;
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delete from t1 where i <> 0;
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select @del;
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@del
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1
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drop trigger t1.trg;
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drop table t1;
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create table t1 (i int, j int);
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create trigger trg1 before insert on t1 for each row
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begin
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if new.j > 10 then
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set new.j := 10;
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end if;
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end|
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create trigger trg2 before update on t1 for each row
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begin
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if old.i % 2 = 0 then
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set new.j := -1;
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end if;
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end|
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create trigger trg3 after update on t1 for each row
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begin
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if new.j = -1 then
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set @fired:= "Yes";
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end if;
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end|
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set @fired:="";
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insert into t1 values (1,2),(2,3),(3,14);
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select @fired;
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@fired
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select * from t1;
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i j
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1 2
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2 3
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3 10
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update t1 set j= 20;
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select @fired;
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@fired
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Yes
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select * from t1;
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i j
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1 20
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2 -1
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3 20
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drop trigger t1.trg1;
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drop trigger t1.trg2;
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drop trigger t1.trg3;
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drop table t1;
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create table t1 (i int);
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create trigger trg before insert on t1 for each row set @a:= old.i;
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ERROR HY000: There is no OLD row in on INSERT trigger
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create trigger trg before delete on t1 for each row set @a:= new.i;
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ERROR HY000: There is no NEW row in on DELETE trigger
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create trigger trg before update on t1 for each row set old.i:=1;
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ERROR HY000: Updating of OLD row is not allowed in trigger
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create trigger trg before delete on t1 for each row set new.i:=1;
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ERROR HY000: There is no NEW row in on DELETE trigger
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create trigger trg after update on t1 for each row set new.i:=1;
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ERROR HY000: Updating of NEW row is not allowed in after trigger
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create trigger trg before insert on t2 for each row set @a:=1;
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ERROR 42S02: Table 'test.t2' doesn't exist
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create trigger trg before insert on t1 for each row set @a:=1;
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create trigger trg after insert on t1 for each row set @a:=1;
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ERROR HY000: Trigger already exists
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create trigger trg2 before insert on t1 for each row set @a:=1;
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ERROR HY000: Trigger already exists
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drop trigger t1.trg;
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drop trigger t1.trg;
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ERROR HY000: Trigger does not exist
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create view v1 as select * from t1;
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create trigger trg before insert on v1 for each row set @a:=1;
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ERROR HY000: Trigger's 'v1' is view or temporary table
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drop view v1;
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drop table t1;
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create temporary table t1 (i int);
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create trigger trg before insert on t1 for each row set @a:=1;
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ERROR HY000: Trigger's 't1' is view or temporary table
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drop table t1;
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@@ -1987,6 +1987,18 @@ call bug5258_aux()|
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drop procedure bug5258|
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drop procedure bug5258_aux|
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#
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# BUG#4487: Stored procedure connection aborted if uninitialized char
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#
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create function bug4487() returns char
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begin
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declare v char;
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return v;
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end|
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select bug4487()|
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drop function bug4487|
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#
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# Some "real" examples
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195
mysql-test/t/trigger.test
Normal file
195
mysql-test/t/trigger.test
Normal file
@@ -0,0 +1,195 @@
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#
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# Basic triggers test
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#
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--disable_warnings
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drop table if exists t1, t2;
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drop view if exists v1;
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--enable_warnings
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create table t1 (i int);
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# let us test some very simple trigger
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create trigger trg before insert on t1 for each row set @a:=1;
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set @a:=0;
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select @a;
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insert into t1 values (1);
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select @a;
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drop trigger t1.trg;
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# let us test simple trigger reading some values
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create trigger trg before insert on t1 for each row set @a:=new.i;
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insert into t1 values (123);
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select @a;
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drop trigger t1.trg;
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drop table t1;
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# Let us test before insert trigger
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# Such triggers can be used for setting complex default values
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create table t1 (i int not null, j int);
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delimiter |;
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create trigger trg before insert on t1 for each row
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begin
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if isnull(new.j) then
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set new.j:= new.i * 10;
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end if;
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end|
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insert into t1 (i) values (1)|
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insert into t1 (i,j) values (2, 3)|
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select * from t1|
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drop trigger t1.trg|
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drop table t1|
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delimiter ;|
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# After insert trigger
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# Useful for aggregating data
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create table t1 (i int not null primary key);
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create trigger trg after insert on t1 for each row
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set @a:= if(@a,concat(@a, ":", new.i), new.i);
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set @a:="";
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insert into t1 values (2),(3),(4),(5);
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select @a;
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drop trigger t1.trg;
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drop table t1;
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# Before update trigger
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# (In future we will achieve this via proper error handling in triggers)
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create table t1 (aid int not null primary key, balance int not null default 0);
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insert into t1 values (1, 1000), (2,3000);
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delimiter |;
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create trigger trg before update on t1 for each row
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begin
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declare loc_err varchar(255);
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if abs(new.balance - old.balance) > 1000 then
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set new.balance:= old.balance;
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set loc_err := concat("Too big change for aid = ", new.aid);
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set @update_failed:= if(@update_failed, concat(@a, ":", loc_err), loc_err);
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end if;
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end|
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set @update_failed:=""|
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update t1 set balance=1500|
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select @update_failed;
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select * from t1|
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drop trigger t1.trg|
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drop table t1|
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delimiter ;|
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# After update trigger
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create table t1 (i int);
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insert into t1 values (1),(2),(3),(4);
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create trigger trg after update on t1 for each row
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set @total_change:=@total_change + new.i - old.i;
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set @total_change:=0;
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update t1 set i=3;
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select @total_change;
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drop trigger t1.trg;
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drop table t1;
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# Before delete trigger
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# This can be used for aggregation too :)
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create table t1 (i int);
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insert into t1 values (1),(2),(3),(4);
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create trigger trg before delete on t1 for each row
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set @del_sum:= @del_sum + old.i;
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set @del_sum:= 0;
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delete from t1 where i <= 3;
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select @del_sum;
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drop trigger t1.trg;
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drop table t1;
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# After delete trigger.
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# Just run out of imagination.
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create table t1 (i int);
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insert into t1 values (1),(2),(3),(4);
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create trigger trg after delete on t1 for each row set @del:= 1;
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set @del:= 0;
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delete from t1 where i <> 0;
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select @del;
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drop trigger t1.trg;
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drop table t1;
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# Several triggers on one table
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create table t1 (i int, j int);
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delimiter |;
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create trigger trg1 before insert on t1 for each row
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begin
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if new.j > 10 then
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set new.j := 10;
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end if;
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end|
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create trigger trg2 before update on t1 for each row
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begin
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if old.i % 2 = 0 then
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set new.j := -1;
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end if;
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end|
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create trigger trg3 after update on t1 for each row
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begin
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if new.j = -1 then
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set @fired:= "Yes";
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end if;
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end|
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delimiter ;|
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set @fired:="";
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insert into t1 values (1,2),(2,3),(3,14);
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select @fired;
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select * from t1;
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update t1 set j= 20;
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select @fired;
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select * from t1;
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drop trigger t1.trg1;
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drop trigger t1.trg2;
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drop trigger t1.trg3;
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drop table t1;
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#
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# Test of wrong column specifiers in triggers
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#
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create table t1 (i int);
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--error 1363
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create trigger trg before insert on t1 for each row set @a:= old.i;
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--error 1363
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create trigger trg before delete on t1 for each row set @a:= new.i;
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--error 1362
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create trigger trg before update on t1 for each row set old.i:=1;
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--error 1363
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create trigger trg before delete on t1 for each row set new.i:=1;
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--error 1362
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create trigger trg after update on t1 for each row set new.i:=1;
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# TODO: We should also test wrong field names here, we don't do it now
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# because proper error handling is not in place yet.
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#
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# Let us test various trigger creation errors
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#
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#
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--error 1146
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create trigger trg before insert on t2 for each row set @a:=1;
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create trigger trg before insert on t1 for each row set @a:=1;
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--error 1359
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create trigger trg after insert on t1 for each row set @a:=1;
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--error 1359
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create trigger trg2 before insert on t1 for each row set @a:=1;
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drop trigger t1.trg;
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--error 1360
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drop trigger t1.trg;
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create view v1 as select * from t1;
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--error 1361
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create trigger trg before insert on v1 for each row set @a:=1;
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drop view v1;
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drop table t1;
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|
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create temporary table t1 (i int);
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--error 1361
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create trigger trg before insert on t1 for each row set @a:=1;
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drop table t1;
|
||||
Reference in New Issue
Block a user