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mariadb/mysql-test/r/trigger.result
unknown a32bf7fb82 Fix for bugs #5892/6182/8751/8758/10994 (based on Antony's patch) 
"Triggers have the wrong namespace"
  "Triggers: duplicate names allowed"
  "Triggers: CREATE TRIGGER does not accept fully qualified names"
  "SHOW TRIGGERS"


mysql-test/r/information_schema.result:
  Added tests for new INFORMATION_SCHEMA.TRIGGERS view and SHOW TRIGGERS command.
mysql-test/r/information_schema_db.result:
  INFORMATION_SCHEMA.TRIGGERS view was added.
mysql-test/r/rpl_sp.result:
  Now DROP TRIGGER interprets first part of trigger identifier as database
  name and not as table name. Adjusted tests properly.
mysql-test/r/trigger.result:
  Now DROP TRIGGER interprets first part of trigger identifier as database
  name and not as table name. Adjusted tests properly.
  Added test checking that triggers have database wide namespace.
  Added test for bug #8791 "Triggers: Allowed to create triggers on a subject
  table in a different DB".
mysql-test/r/view.result:
  Now DROP TRIGGER interprets first part of trigger identifier as database
  name and not as table name. Adjusted tests properly.
mysql-test/t/information_schema.test:
  Added tests for new INFORMATION_SCHEMA.TRIGGERS view and SHOW TRIGGERS command.
mysql-test/t/rpl_sp.test:
  Now DROP TRIGGER interprets first part of trigger identifier as database
  name and not as table name. Adjusted tests properly.
mysql-test/t/trigger.test:
  Now DROP TRIGGER interprets first part of trigger identifier as database
  name and not as table name. Adjusted tests properly.
  Added test checking that triggers have database wide namespace.
  Added test for bug #8791 "Triggers: Allowed to create triggers on a subject
  table in a different DB".
mysql-test/t/view.test:
  Now DROP TRIGGER interprets first part of trigger identifier as database
  name and not as table name. Adjusted tests properly.
sql/handler.cc:
  Added .TRN tho the list of known file extensions assoicated with tables.
sql/item.h:
  trg_action_time_type/trg_event_type enums:
    Added TRG_ACTION_MAX/TRG_EVENT_MAX elements which should be used instead of
    magical values in various loops where we iterate through all types of trigger
    action times or/and trigger event types.
sql/lex.h:
  Added new symbol "TRIGGERS".
sql/mysql_priv.h:
  Added declaration of constant holding extension for trigger name (.TRN) files.
sql/mysqld.cc:
  Added statistical variable for SHOW TRIGGERS command.
sql/share/errmsg.txt:
  Added error message saying that one attempts to create trigger in wrong schema.
sql/sp.cc:
  Replaced magical values with TRG_EVENT_MAX/TRG_ACTION_MAX constants.
sql/sql_base.cc:
  open_unireg_entry():
    Now Table_triggers_list::check_n_load() has one more argument which
    controls whether we should prepare Table_triggers_list with fully functional
    triggers or load only their names.
sql/sql_lex.h:
  Added element for new SHOW TRIGGERS command to enum_sql_command enum.
sql/sql_parse.cc:
  prepare_schema_table():
    Added support for SHOW TRIGGERS statement.
sql/sql_show.cc:
  Added new INFORMATION_SCHEMA.TRIGGERS view and SHOW TRIGGERS command.
sql/sql_table.cc:
  mysql_rm_table_part2():
    Replaced simple deletion of .TRG file with call to
    Table_triggers_list::drop_all_triggers which will also delete .TRN files
    for all triggers associated with table.
sql/sql_trigger.cc:
  Now triggers have database wide namespace. To support it we create special .TRN
  file with same name as trigger for each trigger. This file contains name of
  trigger's table so one does not need to specify it explicitly in DROP TRIGGER.
  Moreover DROP TRIGGER treats first part of trigger identifier as database name
  now. Updated mysql_create_or_drop_trigger() routine and
  Table_triggers_list::create_trigger()/drop_trigger()/check_n_load() methods
  accordingly. Added add_table_for_trigger() routine and
  Table_triggers_list::drop_all_triggers() method.
  
  Added Table_triggers_list::get_trigger_info() for obtaining trigger metadata.
sql/sql_trigger.h:
  Table_triggers_list:
    Use TRG_EVENT_MAX, TRG_ACTION_MAX instead of magic values.
    Added get_trigger_info() method for obtaining trigger's meta-data.
    Added drop_all_triggers() method which drops all triggers for table.
    Added declarations of trg_action_time_type_names/trg_event_type_names
    arrays which hold names of triggers action time types  and event types.
sql/sql_yacc.yy:
  Changed grammar for CREATE/DROP TRIGGER to support database wide trigger
  namespace. Added new SHOW TRIGGERS statement.
sql/table.h:
  enum enum_schema_tables:
    Added constant for new INFORMATION_SCHEMA.TRIGGERS view.
2005-07-19 20:06:49 +04:00

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drop table if exists t1, t2, t3;
drop view if exists v1;
drop database if exists mysqltest;
drop function if exists f1;
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:= "";
replace t1 values (1, 3), (2, 2);
select @log;
@log
(BEFORE_INSERT: new=(id=1, data=3))(BEFORE_UPDATE: old=(id=1, data=1) new=(id=1, data=3))(AFTER_UPDATE: old=(id=1, data=1) new=(id=1, data=3))(BEFORE_INSERT: new=(id=2, data=2))(AFTER_INSERT: new=(id=2, data=2))
alter table t1 add ts timestamp default now();
set @log:= "";
replace t1 (id, data) values (1, 4);
select @log;
@log
(BEFORE_INSERT: new=(id=1, data=4))(BEFORE_DELETE: old=(id=1, data=3))(AFTER_DELETE: old=(id=1, data=3))(AFTER_INSERT: new=(id=1, data=4))
set @log:= "";
insert into t1 (id, data) values (1, 5), (3, 3) on duplicate key update data= data + 2;
select @log;
@log
(BEFORE_INSERT: new=(id=1, data=5))(BEFORE_UPDATE: old=(id=1, data=4) new=(id=1, data=6))(AFTER_UPDATE: old=(id=1, data=4) new=(id=1, data=6))(BEFORE_INSERT: new=(id=3, data=3))(AFTER_INSERT: new=(id=3, data=3))
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/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/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/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 'NEW'
select * from t1;
i k
3 3
alter table t1 add ts timestamp default now();
replace into t1 (i, k) values (3, 13);
ERROR 42S22: Unknown column 'at' in 'OLD'
select * from t1;
i k ts
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/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 'NEW'
select * from t1;
i k
1 1
2 2
alter table t1 add ts timestamp default now();
replace into t1 (i, k) values (2, 11);
ERROR 42S22: Unknown column 'bt' in 'OLD'
select * from t1;
i k ts
1 1 0000-00-00 00:00:00
2 2 0000-00-00 00:00:00
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;
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