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DROP TABLE IF EXISTS t1;
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);
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)
2 123.6 1,234.56 12,345.556 123,456.5555 1,234,567.55550 12,345.24
select inet_ntoa(inet_aton("255.255.255.255.255.255.255.255"));
inet_ntoa(inet_aton("255.255.255.255.255.255.255.255"))
NULL
select inet_aton("255.255.255.255.255"),inet_aton("255.255.1.255"),inet_aton("0.1.255");
inet_aton("255.255.255.255.255") inet_aton("255.255.1.255") inet_aton("0.1.255")
1099511627775 4294902271 65791
select inet_ntoa(1099511627775),inet_ntoa(4294902271),inet_ntoa(511);
inet_ntoa(1099511627775) inet_ntoa(4294902271) inet_ntoa(511)
NULL 255.255.1.255 0.0.1.255
select hex(inet_aton('127'));
hex(inet_aton('127'))
7F
select hex(inet_aton('127.1'));
hex(inet_aton('127.1'))
7F000001
select hex(inet_aton('127.1.1'));
hex(inet_aton('127.1.1'))
7F010001
select length(uuid()), charset(uuid()), length(unhex(replace(uuid(),_utf8'-',_utf8'')));
length(uuid()) charset(uuid()) length(unhex(replace(uuid(),_utf8'-',_utf8'')))
36 utf8 16
set @a= uuid_short();
set @b= uuid_short();
select cast(@a - @b as signed);
cast(@a - @b as signed)
-1
select length(format('nan', 2)) > 0;
length(format('nan', 2)) > 0
1
Warnings:
Warning 1292 Truncated incorrect DOUBLE value: 'nan'
select concat("$",format(2500,2));
concat("$",format(2500,2))
$2,500.00
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) );
a
2004-01-06 12:34:00
select a from t1 where left(a+0,6) = ( left(20040106,6) );
a
2004-01-06 12:34:00
select a from t1 where right(a+0,6) in ( right(20040106123400,6) );
a
2004-01-06 12:34:00
select a from t1 where right(a+0,6) = ( right(20040106123400,6) );
a
2004-01-06 12:34:00
select a from t1 where mid(a+0,6,3) in ( mid(20040106123400,6,3) );
a
2004-01-06 12:34:00
select a from t1 where mid(a+0,6,3) = ( mid(20040106123400,6,3) );
a
2004-01-06 12:34:00
drop table t1;
CREATE TABLE t1 (conn CHAR(7), connection_id INT);
INSERT INTO t1 VALUES ('default', CONNECTION_ID());
SELECT GET_LOCK('bug16501',600);
GET_LOCK('bug16501',600)
1
INSERT INTO t1 VALUES ('con1', CONNECTION_ID());
SELECT IS_USED_LOCK('bug16501') = connection_id
FROM t1
WHERE conn = 'default';
IS_USED_LOCK('bug16501') = connection_id
1
SELECT GET_LOCK('bug16501',600);
SELECT IS_USED_LOCK('bug16501') = CONNECTION_ID();
IS_USED_LOCK('bug16501') = CONNECTION_ID()
1
SELECT RELEASE_LOCK('bug16501');
RELEASE_LOCK('bug16501')
1
GET_LOCK('bug16501',600)
1
SELECT IS_USED_LOCK('bug16501') = connection_id
FROM t1
WHERE conn = 'con1';
IS_USED_LOCK('bug16501') = connection_id
1
SELECT IS_USED_LOCK('bug16501') = CONNECTION_ID();
IS_USED_LOCK('bug16501') = CONNECTION_ID()
1
SELECT RELEASE_LOCK('bug16501');
RELEASE_LOCK('bug16501')
1
SELECT IS_USED_LOCK('bug16501');
IS_USED_LOCK('bug16501')
NULL
DROP TABLE t1;
select export_set(3, _latin1'foo', _utf8'bar', ',', 4);
export_set(3, _latin1'foo', _utf8'bar', ',', 4)
foo,foo,bar,bar
End of 4.1 tests
create table t1 as select uuid(), length(uuid());
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`uuid()` varchar(36) CHARACTER SET utf8 NOT NULL DEFAULT '',
`length(uuid())` int(10) NOT NULL DEFAULT '0'
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
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);
sleep(3)
0
update t1 set b = now();
select timediff(b, a) >= '00:00:03' from t1;
timediff(b, a) >= '00:00:03'
1
drop table t1;
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);
a
update t2 set b = now() where b is null;
insert into t2 set a = now();
select a from t1 where sleep(a);
a
update t2 set b = now() where b is null;
insert into t2 set a = now();
select a from t1 where sleep(1);
a
update t2 set b = now() where b is null;
select timediff(b, a) >= '00:00:03' from t2;
timediff(b, a) >= '00:00:03'
1
1
1
drop table t2;
drop table t1;
set global query_cache_size=default;
create table t1 select INET_ATON('255.255.0.1') as `a`;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` bigint(21) unsigned DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
drop table if exists table_26093;
drop function if exists func_26093_a;
drop function if exists func_26093_b;
create table table_26093(a int);
insert into table_26093 values
(1), (2), (3), (4), (5),
(6), (7), (8), (9), (10);
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//
select avg(a) from table_26093;
avg(a)
5.5000
select benchmark(100, (select avg(a) from table_26093));
benchmark(100, (select avg(a) from table_26093))
0
set @invoked := 0;
select benchmark(100, (select avg(func_26093_a(a)) from table_26093));
benchmark(100, (select avg(func_26093_a(a)) from table_26093))
0
select @invoked;
@invoked
10
set @invoked := 0;
select benchmark(100, (select avg(func_26093_b(a, rand())) from table_26093));
benchmark(100, (select avg(func_26093_b(a, rand())) from table_26093))
0
select @invoked;
@invoked
1000
select benchmark(100, (select (a) from table_26093));
ERROR 21000: Subquery returns more than 1 row
select benchmark(100, (select 1, 1));
ERROR 21000: Operand should contain 1 column(s)
drop table table_26093;
drop function func_26093_a;
drop function func_26093_b;
End of 5.0 tests
select connection_id() > 0;
connection_id() > 0
1
End of tests
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