Add a test case for Bug#22427 create table if not exists + stored

insert into bug_27907_t1(a) values (1);

ERROR 42S02: Table 'test.bug_27907_logs' doesn't exist

drop table bug_27907_t1;

Bug#22427 create table if not exists + stored function results in

inconsistent behavior

Add a test case, the bug itself was fixed by the patch for

Bug#20662

drop table if exists t1;

drop function if exists f_bug22427;

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();

f_bug22427()

1

create table if not exists t1 select f_bug22427() as i;

Warnings:

Note	1050	Table 't1' already exists

create table t1 select f_bug22427() as i;

ERROR 42S01: Table 't1' already exists

drop table t1;

drop function f_bug22427;

End of 5.0 tests

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 End of 5.0 tests