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Merge bk-internal.mysql.com:/home/bk/mysql-5.0
into mysql.com:/home/dlenev/src/mysql-5.0-bg11896 mysql-test/t/sp-error.test: Auto merged mysql-test/t/trigger.test: Auto merged sql/sql_base.cc: Auto merged mysql-test/r/trigger.result: Manual merge. sql/share/errmsg.txt: Manual merge.
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@ -299,6 +299,36 @@ lock tables t1 read, mysql.proc read|
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unlock tables|
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lock tables mysql.proc write|
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unlock tables|
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drop function if exists f1|
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create function f1(i int) returns int
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begin
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insert into t1 (val) values (i);
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return 0;
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end|
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select val, f1(val) from t1|
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ERROR HY000: Can't update table 't1' in stored function/trigger because it is already used by statement which invoked this stored function/trigger.
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select val, f1(val) from t1 as tab|
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ERROR HY000: Can't update table 't1' in stored function/trigger because it is already used by statement which invoked this stored function/trigger.
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select * from t1|
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val x
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42 3.1
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19 1.2
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update t1 set val= f1(val)|
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ERROR HY000: Can't update table 't1' in stored function/trigger because it is already used by statement which invoked this stored function/trigger.
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select * from t1|
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val x
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42 3.1
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19 1.2
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select f1(17)|
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f1(17)
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0
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select * from t1|
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val x
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42 3.1
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19 1.2
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17 NULL
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delete from t1 where val= 17|
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drop function f1|
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create procedure bug1965()
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begin
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declare c cursor for select val from t1 order by valname;
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@ -697,3 +697,44 @@ c1 c2
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3 NULL
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drop procedure bug11587;
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drop table t1;
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create table t1 (f1 integer);
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create table t2 (f2 integer);
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create trigger t1_ai after insert on t1
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for each row insert into t2 values (new.f1+1);
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create trigger t2_ai after insert on t2
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for each row insert into t1 values (new.f2+1);
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insert into t1 values (1);
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ERROR HY000: Can't update table 't1' in stored function/trigger because it is already used by statement which invoked this stored function/trigger.
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select * from t1;
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f1
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1
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select * from t2;
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f2
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2
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drop trigger t1_ai;
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drop trigger t2_ai;
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create trigger t1_bu before update on t1
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for each row insert into t1 values (2);
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update t1 set f1= 10;
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ERROR HY000: Can't update table 't1' in stored function/trigger because it is already used by statement which invoked this stored function/trigger.
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select * from t1;
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f1
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1
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drop trigger t1_bu;
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create trigger t1_bu before update on t1
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for each row delete from t1 where f1=new.f1;
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update t1 set f1= 10;
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ERROR HY000: Can't update table 't1' in stored function/trigger because it is already used by statement which invoked this stored function/trigger.
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select * from t1;
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f1
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1
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drop trigger t1_bu;
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create trigger t1_bi before insert on t1
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for each row set new.f1=(select sum(f1) from t1);
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insert into t1 values (3);
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select * from t1;
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f1
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1
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1
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drop trigger t1_bi;
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drop tables t1, t2;
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@ -409,6 +409,35 @@ lock tables mysql.proc write|
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unlock tables|
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#
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# Check that in functions we don't allow to update tables which
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# are used by statements which invoke these functions.
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#
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--disable_warnings
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drop function if exists f1|
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--enable_warnings
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create function f1(i int) returns int
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begin
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insert into t1 (val) values (i);
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return 0;
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end|
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--error ER_CANT_UPDATE_USED_TABLE_IN_SF_OR_TRG
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select val, f1(val) from t1|
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# Table alias should not matter
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--error ER_CANT_UPDATE_USED_TABLE_IN_SF_OR_TRG
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select val, f1(val) from t1 as tab|
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select * from t1|
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--error ER_CANT_UPDATE_USED_TABLE_IN_SF_OR_TRG
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update t1 set val= f1(val)|
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select * from t1|
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# But this should be OK
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select f1(17)|
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select * from t1|
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# Cleanup
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delete from t1 where val= 17|
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drop function f1|
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#
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# BUG#1965
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#
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@ -729,3 +729,39 @@ select * from t1;
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drop procedure bug11587;
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drop table t1;
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# Test for bug #11896 "Partial locking in case of recursive trigger
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# definitions". Recursion in triggers should not be allowed.
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# We also should not allow to change tables which are used in
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# statements invoking this trigger.
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create table t1 (f1 integer);
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create table t2 (f2 integer);
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create trigger t1_ai after insert on t1
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for each row insert into t2 values (new.f1+1);
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create trigger t2_ai after insert on t2
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for each row insert into t1 values (new.f2+1);
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--error ER_CANT_UPDATE_USED_TABLE_IN_SF_OR_TRG
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insert into t1 values (1);
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select * from t1;
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select * from t2;
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drop trigger t1_ai;
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drop trigger t2_ai;
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create trigger t1_bu before update on t1
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for each row insert into t1 values (2);
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--error ER_CANT_UPDATE_USED_TABLE_IN_SF_OR_TRG
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update t1 set f1= 10;
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select * from t1;
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drop trigger t1_bu;
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create trigger t1_bu before update on t1
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for each row delete from t1 where f1=new.f1;
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--error ER_CANT_UPDATE_USED_TABLE_IN_SF_OR_TRG
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update t1 set f1= 10;
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select * from t1;
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drop trigger t1_bu;
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# This should work tough
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create trigger t1_bi before insert on t1
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for each row set new.f1=(select sum(f1) from t1);
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insert into t1 values (3);
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select * from t1;
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drop trigger t1_bi;
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drop tables t1, t2;
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