path: root/mysql-test/t/sp_trans.test

#
# tests that require InnoDB...
#

-- source include/have_innodb.inc

--disable_warnings
drop table if exists t1, t2;
--enable_warnings

delimiter |;

#
# BUG#8850: Truncate table in a stored procedure locks the tables
#
--disable_warnings
drop procedure if exists bug8850|
--enable_warnings
create table t1 (a int) engine=innodb|
create procedure bug8850()
begin
  truncate table t1; insert t1 values (1); rollback;
end|

set autocommit=0|
insert t1 values (2)|
call bug8850()|
commit|
select * from t1|

call bug8850()|
set autocommit=1|
select * from t1|
drop table t1|
drop procedure bug8850|


#
# BUG#10015: Crash in InnoDB if stored routines are used
# (crash happens in auto-commit mode)
#
--disable_warnings
drop function if exists bug10015_1|
drop function if exists bug10015_2|
drop function if exists bug10015_3|
drop function if exists bug10015_4|
drop function if exists bug10015_5|
drop function if exists bug10015_6|
drop function if exists bug10015_7|
drop procedure if exists bug10015_8|
--enable_warnings
create table t1 (id int) engine=innodb|
create table t2 (id int primary key, j int) engine=innodb|
insert into t1 values (1),(2),(3)|
create function bug10015_1() returns int return (select count(*) from t1)|
select *, bug10015_1() from t1|
drop function bug10015_1|
# Test couple of a bit more complex cases
create function bug10015_2() returns int 
  begin
    declare i, s int;
    set i:= (select min(id) from t1);
    set s:= (select max(id) from t1);
    return (s - i);
  end|
select *, bug10015_2() from t1|
drop function bug10015_2|
create function bug10015_3() returns int 
  return (select max(a.id - b.id) from t1 as a, t1 as b where a.id >= b.id)|
select *, bug10015_3() from t1|
drop function bug10015_3|
create function bug10015_4(i int) returns int 
  begin
    declare m int;
    set m:= (select max(id) from t2);
    insert into t2 values (i, m);
    return m;
  end|
select *, bug10015_4(id) from t1|
select * from t2|
drop function bug10015_4|
# Now let us test how statement rollback works
# This function will cause the whole stmt to be rolled back,
# there should not be any traces left.
create function bug10015_5(i int) returns int
  begin
    if (i = 5) then
      insert into t2 values (1, 0);
    end if;
    return i;
  end|
--error 1062
insert into t1 values (bug10015_5(4)), (bug10015_5(5))|
select * from t1|
drop function bug10015_5|
# Thanks to error-handler this function should not cause rollback
# of statement calling it. But insert statement in it should be 
# rolled back completely and don't leave any traces in t2.
# Unfortunately we can't implement such behavior in 5.0, so it
# is something to be fixed in later 5.* releases (TODO).
create function bug10015_6(i int) returns int
  begin
    declare continue handler for sqlexception set @error_in_func:= 1;
    if (i = 5) then
      insert into t2 values (4, 0), (1, 0);
    end if;
    return i;
  end|
set @error_in_func:= 0|
insert into t1 values (bug10015_6(5)), (bug10015_6(6))|
select @error_in_func|
select * from t1|
select * from t2|
drop function bug10015_6|
# Let us test that we don't allow any statements causing transaction
# commit in stored functions (we test only most interesting cases here).
# Cases which can be caught at creation time:
--error 1422
create function bug10015_7() returns int
  begin
    alter table t1 add k int;
    return 1;
  end|
--error 1422
create function bug10015_7() returns int
  begin
    start transaction;
    return 1;
  end|
--error 1422
create function bug10015_7() returns int
  begin
    drop table t1;
    return 1;
  end|
# It should be OK to drop temporary table.
create function bug10015_7() returns int
  begin
    drop temporary table t1;
    return 1;
  end|
drop function bug10015_7|
--error 1422
create function bug10015_7() returns int
  begin
    commit;
    return 1;
  end|
# Now let us test cases which we can catch only at run-time:
create function bug10015_7() returns int
  begin
    call bug10015_8();
    return 1;
  end|
create procedure bug10015_8() alter table t1 add k int|
--error 1422
select *, bug10015_7() from t1|
drop procedure bug10015_8|
create procedure bug10015_8() start transaction|
--error 1422
select *, bug10015_7() from t1|
drop procedure bug10015_8|
# Again it is OK to drop temporary table
# We are surpressing warnings since they are not essential
create procedure bug10015_8() drop temporary table if exists t1_temp|
--disable_warnings
select *, bug10015_7() from t1|
--enable_warnings
drop procedure bug10015_8|
create procedure bug10015_8() commit|
--error 1422
select *, bug10015_7() from t1|
drop procedure bug10015_8|
drop function bug10015_7|
drop table t1, t2|


#
# BUG#13825 "Triggers: crash if release savepoint".
# Also general test for handling of savepoints in stored routines.
#
# According to SQL standard we should establish new savepoint
# level before executing stored function/trigger and destroy 
# this savepoint level after execution. Stored procedures by
# default should be executed using the same savepoint level
# as their caller (to execute stored procedure using new 
# savepoint level one should explicitly specify NEW SAVEPOINT
# LEVEL clause in procedure creation statement which MySQL
# does not support yet).
--disable_warnings
drop function if exists bug13825_0|
drop function if exists bug13825_1|
drop function if exists bug13825_2|
drop function if exists bug13825_3|
drop function if exists bug13825_4|
drop function if exists bug13825_5|
drop procedure if exists bug13825_0|
drop procedure if exists bug13825_1|
drop procedure if exists bug13825_2|
drop table if exists t1|
--enable_warnings
create table t1 (i int) engine=innodb|
create table t2 (i int) engine=innodb|
create function bug13825_0() returns int
begin
  rollback to savepoint x;
  return 1;
end|
create function bug13825_1() returns int
begin
  release savepoint x;
  return 1;
end|
create function bug13825_2() returns int
begin
  insert into t1 values (2);
  savepoint x;
  insert into t1 values (3);
  rollback to savepoint x;
  insert into t1 values (4);
  return 1;
end|
create procedure bug13825_0()
begin
  rollback to savepoint x;
end|
create procedure bug13825_1()
begin
  release savepoint x;
end|
create procedure bug13825_2()
begin
  savepoint x;
end|
insert into t2 values (1)|
create trigger t2_bi before insert on t2 for each row
  rollback to savepoint x|
create trigger t2_bu before update on t2 for each row
  release savepoint x|
create trigger t2_bd before delete on t2 for each row
begin
  insert into t1 values (2);
  savepoint x;
  insert into t1 values (3);
  rollback to savepoint x;
  insert into t1 values (4);
end|
create function bug13825_3(rb int) returns int
begin
  insert into t1 values(1);
  savepoint x;
  insert into t1 values(2);
  if rb then
    rollback to savepoint x;
  end if;
  insert into t1 values(3);
  return rb;
end|
create function bug13825_4() returns int
begin
  savepoint x;
  insert into t1 values(2);
  rollback to savepoint x;
  return 0;
end|
create function bug13825_5(p int) returns int
begin
  savepoint x;
  insert into t2 values(p);
  rollback to savepoint x;
  insert into t2 values(p+1);
  return p;
end|
set autocommit= 0|
# Test of savepoint level handling for stored functions and triggers
begin |
insert into t1 values (1)|
savepoint x|
--error ER_SP_DOES_NOT_EXIST
set @a:= bug13825_0()|
--error ER_SP_DOES_NOT_EXIST
insert into t2 values (2)|
--error ER_SP_DOES_NOT_EXIST
set @a:= bug13825_1()|
--error ER_SP_DOES_NOT_EXIST
update t2 set i = 2|
set @a:= bug13825_2()|
select * from t1|
rollback to savepoint x|
select * from t1|
delete from t2|
select * from t1|
rollback to savepoint x|
select * from t1|
# Of course savepoints set in function should not be visible from its caller
release savepoint x|
set @a:= bug13825_2()|
select * from t1|
--error ER_SP_DOES_NOT_EXIST
rollback to savepoint x|
delete from t1|
commit|
# Test of savepoint level handling for stored procedures
begin|
insert into t1 values (5)|
savepoint x|
insert into t1 values (6)|
call bug13825_0()|
select * from t1|
call bug13825_1()|
--error ER_SP_DOES_NOT_EXIST
rollback to savepoint x|
savepoint x|
insert into t1 values (7)|
call bug13825_2()|
rollback to savepoint x|
select * from t1|
delete from t1|
commit|
set autocommit= 1|
# Let us test that savepoints work inside of functions
# even in auto-commit mode
select bug13825_3(0)|
select * from t1|
delete from t1|
select bug13825_3(1)|
select * from t1|
delete from t1|
# Curious case: rolling back to savepoint which is set by first
# statement in function should not rollback whole transaction.
set autocommit= 0|
begin|
insert into t1 values (1)|
set @a:= bug13825_4()|
select * from t1|
delete from t1|
commit|
set autocommit= 1|
# Other curious case: savepoint in the middle of statement
drop table t2|
create table t2 (i int) engine=innodb|
insert into t1 values (1), (bug13825_5(2)), (3)|
select * from t1|
select * from t2|
# Cleanup
drop function bug13825_0|
drop function bug13825_1|
drop function bug13825_2|
drop function bug13825_3|
drop function bug13825_4|
drop function bug13825_5|
drop procedure bug13825_0|
drop procedure bug13825_1|
drop procedure bug13825_2|
drop table t1, t2|


#
# BUG#14840: CONTINUE handler problem
#
--disable_warnings
drop table if exists t3|
drop procedure if exists bug14840_1|
drop procedure if exists bug14840_2|
--enable_warnings

create table t3
(
  x int,
  y int,
  primary key (x)
) engine=InnoDB|

# This used to hang the client since the insert returned with an
# error status (left over from the update) even though it succeeded,
# which caused the execution to end at that point.
create procedure bug14840_1()
begin
  declare err int default 0;
  declare continue handler for sqlexception
    set err = err + 1;

  start transaction;
  update t3 set x = 1, y = 42 where x = 2;
  insert into t3 values (3, 4711);
  if err > 0 then
    rollback;
  else
    commit;
  end if;
  select * from t3;
end|

# A simpler (non-transactional) case: insert at select should be done
create procedure bug14840_2()
begin
  declare err int default 0;
  declare continue handler for sqlexception
    begin
      set err = err + 1;
      select err as 'Ping';
    end;

  update t3 set x = 1, y = 42 where x = 2;
  update t3 set x = 1, y = 42 where x = 2;
  insert into t3 values (3, 4711);
  select * from t3;
end|

insert into t3 values (1, 3), (2, 5)|
call bug14840_1()|

delete from t3|
insert into t3 values (1, 3), (2, 5)|
call bug14840_2()|

drop procedure bug14840_1|
drop procedure bug14840_2|
drop table t3|


#
# BUG#NNNN: New bug synopsis
#
#--disable_warnings
#drop procedure if exists bugNNNN|
#--enable_warnings
#create procedure bugNNNN...

delimiter ;|