mariadb/mysql-test/t/sp-prelocking.test

#
# Tests of prelocking-free execution of stored procedures.
# Currently two properties of prelocking-free SP execution are checked:
#  - It is possible to execute DDL statements in prelocking-free stored
#    procedure
#  - The same procedure can be called in prelocking-free mode and 
#    in prelocked mode (from within a function).

--disable_warnings
drop database if exists mysqltest;
drop table if exists t1, t2, t3, t4;
drop procedure if exists sp1;
drop procedure if exists sp2;
drop procedure if exists sp3;
drop procedure if exists sp4;
drop function if exists f1;
drop function if exists f2;
drop function if exists f3;
--enable_warnings

# BUG#8072 

create database mysqltest;
delimiter //;
use mysqltest//
create procedure sp1 () 
begin
  drop table if exists t1;
  select 1 as "my-col";
end;
//
delimiter ;//

select database();
call sp1();
select database();

use test;
select database();
call mysqltest.sp1();
select database();

drop procedure mysqltest.sp1;
drop database mysqltest;

# BUG#8766

delimiter //;
create procedure sp1() 
begin 
  create table t1 (a int); 
  insert into t1 values (10); 
end//

create procedure sp2()
begin
  create table t2(a int);
  insert into t2 values(1);
  call sp1();
end//

create function f1() returns int
begin 
  return (select max(a) from t1);
end//

create procedure sp3()
begin 
  call sp1();
  select 'func', f1();
end//

delimiter ;//

call sp1();
select 't1',a from t1;

drop table t1;
call sp2();
select 't1',a from t1;
select 't2',a from t2;
drop table t1, t2;

call sp3();
select 't1',a from t1;

drop table t1;

drop procedure sp1;
drop procedure sp2;
drop procedure sp3;
drop function f1;

delimiter //;
create procedure sp1()
begin
  create temporary table t2(a int);
  insert into t2 select * from t1;
end//

create procedure sp2()
begin
  create temporary table t1 (a int);
  insert into t1 values(1);
  call sp1();
  select 't1', a from t1;
  select 't2', a from t2;
  drop table t1;
  drop table t2;
end//

delimiter ;//
call sp2();

drop procedure sp1;
drop procedure sp2;

# Miscelaneous tests
create table t1 (a int);
insert into t1 values(1),(2);
create table t2 as select * from t1;
create table t3 as select * from t1;
create table t4 as select * from t1;
delimiter //;
create procedure sp1(a int)
begin
  select a;
end //

create function f1() returns int
begin
  return (select max(a) from t1);
end //

delimiter ;//

CALL sp1(f1());

#############
delimiter //;
create procedure sp2(a int)
begin
  select * from t3;
  select a;
end //

create procedure sp3()
begin 
  select * from t1;
  call sp2(5);
end //

create procedure sp4()
begin 
  select * from t2;
  call sp3();
end //

delimiter ;//
call sp4();

drop procedure sp1;
drop procedure sp2;
drop procedure sp3;
drop procedure sp4;
drop function f1;

# Test that prelocking state restoration works with cursors
--disable_warnings
drop view if exists v1;
--enable_warnings
delimiter //;

create function f1(ab int) returns int
begin
  declare i int;
  set i= (select max(a) from t1 where a < ab) ;
  return i;
end //

create function f2(ab int) returns int
begin
  declare i int;
  set i= (select max(a) from t2 where a < ab) ;
  return i;
end //

create view v1 as 
  select t3.a as x, t4.a as y, f2(3) as z
  from t3, t4 where t3.a = t4.a //

create procedure sp1()
begin
  declare a int;
  set a= (select f1(4) + count(*) A from t1, v1);
end //


create function f3() returns int
begin
  call sp1();
  return 1;
end //

call sp1() //

select f3() //
select f3() //

call sp1() //

# ---------------
drop procedure sp1//
drop function f3//

create procedure sp1() 
begin 
  declare x int;
  declare c cursor for select f1(3) + count(*) from v1;
  open c;
  fetch c into x;
end;//

create function f3() returns int
begin
  call sp1();
  return 1;
end //

call sp1() //
call sp1() //

select f3() //
call sp1() //

delimiter ;//
drop view v1;
drop table t1,t2,t3,t4;
drop function f1;
drop function f2;
drop function f3;
drop procedure sp1;

#
# Bug#15683 "crash, Function on nested VIEWs, Prepared statement"
# Check that when creating the prelocking list a nested view 
# is not merged until it's used.
#
--disable_warnings
drop table if exists t1;
drop view if exists v1, v2, v3;
drop function if exists bug15683;
--enable_warnings
create table t1 (f1 bigint, f2 varchar(20), f3 bigint);
insert into t1 set f1 = 1, f2 = 'schoenenbourg', f3 = 1;
create view v1 as select 1 from t1 union all select 1;
create view v2 as select 1 from v1;
create view v3 as select 1 as f1 from v2;

delimiter |;
create function bug15683() returns bigint
begin
return (select count(*) from v3);
end|
delimiter ;|

prepare stmt from "select bug15683()";
execute stmt;
execute stmt;
deallocate prepare stmt;
drop table t1;
drop view v1, v2, v3;
drop function bug15683;


#
# Bug#19634 "Re-execution of multi-delete which involve trigger/stored 
#            function crashes server"
#
--disable_warnings
drop table if exists t1, t2, t3;
drop function if exists bug19634;
--enable_warnings
create table t1 (id int, data int);
create table t2 (id int);
create table t3 (data int);
create function bug19634() returns int return (select count(*) from t3);
prepare stmt from "delete t1 from t1, t2 where t1.id = t2.id and bug19634()";
# This should not crash server
execute stmt;
execute stmt;
deallocate prepare stmt;

create trigger t1_bi before delete on t1 for each row insert into t3 values (old.data);
prepare stmt from "delete t1 from t1, t2 where t1.id = t2.id";

execute stmt;
execute stmt;
deallocate prepare stmt;

drop function bug19634;
drop table t1, t2, t3;

#
# Bug #27907 Misleading error message when opening/locking tables
#

--disable_warnings
drop table if exists bug_27907_logs;
drop table if exists bug_27907_t1;
--enable_warnings

create table bug_27907_logs (a int);
create table bug_27907_t1 (a int);

delimiter |;

create trigger bug_27907_t1_ai after insert on bug_27907_t1
for each row
begin
  insert into bug_27907_logs (a) values (1);
end|

delimiter ;|

drop table bug_27907_logs;

#
# was failing before with error ER_NOT_LOCKED
#
--error ER_NO_SUCH_TABLE
insert into bug_27907_t1(a) values (1);

drop table bug_27907_t1;

--echo
--echo Bug#22427 create table if not exists + stored function results in
--echo inconsistent behavior
--echo
--echo Add a test case, the bug itself was fixed by the patch for
--echo Bug#20662
--echo
--disable_warnings
drop table if exists t1;
drop function if exists f_bug22427;
--enable_warnings
create table t1 (i int);
insert into t1 values (1);
create function f_bug22427() returns int return (select max(i) from t1);
select f_bug22427();
# Until this bug was fixed, the following emitted error
# ERROR 1213: Deadlock found when trying to get lock
create table if not exists t1 select f_bug22427() as i;
--error ER_TABLE_EXISTS_ERROR
create table t1 select f_bug22427() as i;
drop table t1;
drop function f_bug22427;

--echo #
--echo # Bug #29929 LOCK TABLES does not pre-lock tables used in triggers of the locked tables
--echo #
--disable_warnings
DROP table IF EXISTS t1,t2;
--enable_warnings
CREATE TABLE t1 (c1 INT);
CREATE TABLE t2 (c2 INT);
INSERT INTO t1 VALUES (1);
INSERT INTO t2 VALUES (2);
DELIMITER //;
CREATE TRIGGER t1_ai AFTER INSERT ON t1 FOR EACH ROW
BEGIN
UPDATE t2 SET c2= c2 + 1;
END//
DELIMITER ;//
--echo # Take a table lock on t1.
--echo # This should pre-lock t2 through the trigger.
LOCK TABLE t1 WRITE;
INSERT INTO t1 VALUES (3);
UNLOCK TABLES;
LOCK TABLE t1 READ;
--error ER_TABLE_NOT_LOCKED
INSERT INTO t2 values(4);
UNLOCK TABLES;
SELECT * FROM t1;
SELECT * FROM t2;
DROP TRIGGER t1_ai;
DROP TABLE t1, t2;

--echo End of 5.0 tests

--echo #
--echo # Bug#21142859: FUNCTION UPDATING A VIEW FAILS TO FIND TABLE THAT ACTUALLY EXISTS
--echo #

CREATE TABLE t1 SELECT 1 AS fld1, 'A' AS fld2;
CREATE TABLE t2 (fld3 INT, fld4 CHAR(1));

CREATE VIEW v1 AS SELECT * FROM t1;

CREATE TRIGGER t1_au AFTER UPDATE ON t1
FOR EACH ROW INSERT INTO t2 VALUES (new.fld1, new.fld2);

DELIMITER !;
CREATE FUNCTION f1() RETURNS INT
BEGIN
 UPDATE v1 SET fld2='B' WHERE fld1=1;
 RETURN row_count();
END !
DELIMITER ;!

--echo # Without the patch, an error was getting reported.
SELECT f1();

DROP FUNCTION f1;
DROP VIEW v1;
DROP TABLE t1,t2;

--echo #
--echo # Bug #16672723 "CAN'T FIND TEMPORARY TABLE".
--echo #
CREATE FUNCTION f1() RETURNS INT RETURN 1;
CREATE TEMPORARY TABLE tmp1(a INT);
PREPARE stmt1 FROM "CREATE TEMPORARY TABLE tmp2 AS SELECT b FROM (SELECT f1() AS b FROM tmp1) AS t";
--echo # The below statement failed before the fix.
EXECUTE stmt1;
DROP TEMPORARY TABLES tmp1, tmp2;
DEALLOCATE PREPARE stmt1;
DROP FUNCTION f1;

#
# MDEV-9084 Calling a stored function from a nested select from temporary table causes unpredictable behavior
#
delimiter $$;
create procedure sp1()
begin
  drop table if exists t1, t2;
  create temporary table t1 select 1 v;
  create table t2 (col varchar(45)) select distinct col from (select sf1() as col from t1) t;
end$$
delimiter ;$$
create function sf1() returns text return 'blah';
call test.sp1();
call test.sp1();
drop procedure sp1;
drop function sf1;
drop table t2;