mariadb/mysql-test/t/func_misc.test
unknown 0a93be2869 Bug#26093 (SELECT BENCHMARK() for SELECT statements does not produce valid
results)

Before this fix, the function BENCHMARK() would fail to evaluate expressions
like "(select avg(a) from t1)" in debug builds (with an assert),
or would report a time of zero in non debug builds.

The root cause is that evaluation of DECIMAL_RESULT expressions was not
supported in Item_func_benchmark::val_int().

This has been fixed by this change.


mysql-test/r/func_misc.result:
  Added support for DECIMAL_RESULT in Item_func_benchmark::val_int()
mysql-test/t/func_misc.test:
  Added support for DECIMAL_RESULT in Item_func_benchmark::val_int()
sql/item_func.cc:
  Added support for DECIMAL_RESULT in Item_func_benchmark::val_int()
2007-03-01 19:20:47 -07:00

192 lines
4.7 KiB
Text

#
# Testing of misc functions
#
select format(1.5555,0),format(123.5555,1),format(1234.5555,2),format(12345.55555,3),format(123456.5555,4),format(1234567.5555,5),format("12345.2399",2);
select inet_ntoa(inet_aton("255.255.255.255.255.255.255.255"));
select inet_aton("255.255.255.255.255"),inet_aton("255.255.1.255"),inet_aton("0.1.255");
select inet_ntoa(1099511627775),inet_ntoa(4294902271),inet_ntoa(511);
select hex(inet_aton('127'));
select hex(inet_aton('127.1'));
select hex(inet_aton('127.1.1'));
select length(uuid()), charset(uuid()), length(unhex(replace(uuid(),_utf8'-',_utf8'')));
#
# Test for core dump with nan
#
select length(format('nan', 2)) > 0;
#
# Test for bug #628
#
select concat("$",format(2500,2));
# Test for BUG#7716
create table t1 ( a timestamp );
insert into t1 values ( '2004-01-06 12:34' );
select a from t1 where left(a+0,6) in ( left(20040106,6) );
select a from t1 where left(a+0,6) = ( left(20040106,6) );
select a from t1 where right(a+0,6) in ( right(20040106123400,6) );
select a from t1 where right(a+0,6) = ( right(20040106123400,6) );
select a from t1 where mid(a+0,6,3) in ( mid(20040106123400,6,3) );
select a from t1 where mid(a+0,6,3) = ( mid(20040106123400,6,3) );
drop table t1;
#
# Bug#16501: IS_USED_LOCK does not appear to work
#
--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings
CREATE TABLE t1 (conn CHAR(7), connection_id INT);
INSERT INTO t1 VALUES ('default', CONNECTION_ID());
SELECT GET_LOCK('bug16501',600);
connect (con1,localhost,root,,);
INSERT INTO t1 VALUES ('con1', CONNECTION_ID());
SELECT IS_USED_LOCK('bug16501') = connection_id
FROM t1
WHERE conn = 'default';
send SELECT GET_LOCK('bug16501',600);
connection default;
SELECT IS_USED_LOCK('bug16501') = CONNECTION_ID();
SELECT RELEASE_LOCK('bug16501');
connection con1;
reap;
connection default;
SELECT IS_USED_LOCK('bug16501') = connection_id
FROM t1
WHERE conn = 'con1';
connection con1;
SELECT IS_USED_LOCK('bug16501') = CONNECTION_ID();
SELECT RELEASE_LOCK('bug16501');
SELECT IS_USED_LOCK('bug16501');
disconnect con1;
connection default;
DROP TABLE t1;
#
# Bug #21531: EXPORT_SET() doesn't accept args with coercible character sets
#
select export_set(3, _latin1'foo', _utf8'bar', ',', 4);
--echo End of 4.1 tests
#
# Test for BUG#9535
#
create table t1 as select uuid(), length(uuid());
show create table t1;
drop table t1;
#
# Bug #6760: Add SLEEP() function
#
create table t1 (a timestamp default '2005-05-05 01:01:01',
b timestamp default '2005-05-05 01:01:01');
insert into t1 set a = now();
select sleep(3);
update t1 set b = now();
select timediff(b, a) >= '00:00:03' from t1;
drop table t1;
#
# Bug #12689: SLEEP() gets incorrectly cached/optimized-away
#
set global query_cache_size=1355776;
create table t1 (a int);
insert into t1 values (1),(1),(1);
create table t2 (a datetime default null, b datetime default null);
insert into t2 set a = now();
select a from t1 where sleep(1);
update t2 set b = now() where b is null;
insert into t2 set a = now();
select a from t1 where sleep(a);
update t2 set b = now() where b is null;
insert into t2 set a = now();
select a from t1 where sleep(1);
update t2 set b = now() where b is null;
select timediff(b, a) >= '00:00:03' from t2;
drop table t2;
drop table t1;
set global query_cache_size=default;
#
# Bug #21466: INET_ATON() returns signed, not unsigned
#
create table t1 select INET_ATON('255.255.0.1') as `a`;
show create table t1;
drop table t1;
#
# Bug#26093 (SELECT BENCHMARK() for SELECT statements does not produce
# valid results)
#
--disable_warnings
drop table if exists table_26093;
drop function if exists func_26093_a;
drop function if exists func_26093_b;
--enable_warnings
create table table_26093(a int);
insert into table_26093 values
(1), (2), (3), (4), (5),
(6), (7), (8), (9), (10);
delimiter //;
create function func_26093_a(x int) returns int
begin
set @invoked := @invoked + 1;
return x;
end//
create function func_26093_b(x int, y int) returns int
begin
set @invoked := @invoked + 1;
return x;
end//
delimiter ;//
select avg(a) from table_26093;
select benchmark(100, (select avg(a) from table_26093));
set @invoked := 0;
select benchmark(100, (select avg(func_26093_a(a)) from table_26093));
# Returns only 10, since intermediate results are cached.
select @invoked;
set @invoked := 0;
select benchmark(100, (select avg(func_26093_b(a, rand())) from table_26093));
# Returns 1000, due to rand() preventing caching.
select @invoked;
--error ER_SUBQUERY_NO_1_ROW
select benchmark(100, (select (a) from table_26093));
--error ER_OPERAND_COLUMNS
select benchmark(100, (select 1, 1));
drop table table_26093;
drop function func_26093_a;
drop function func_26093_b;
--echo End of 5.0 tests