ps_4heap.result

这是linux下运行的mysql软件包,可用于linux 下安装 php + mysql + apach 的网络配置

   b=? and a = (select ? from t1 where outer_table.b = ? 
                   and outer_table.a=a ) ' ;
execute stmt1 using @arg00, @arg01, @arg02, @arg03 ;
a	?	b
2	1	two
set @arg00=1 ;
set @arg01=0 ;
select a, @arg00 
from ( select a - @arg00 as a from t1 where a=@arg00 ) as t2
where a=@arg01;
a	@arg00
0	1
prepare stmt1 from ' select a, ? 
                    from ( select a - ? as a from t1 where a=? ) as t2
                    where a=? ';
execute stmt1 using @arg00, @arg00, @arg00, @arg01 ;
a	?
0	1
drop table if exists t2 ;
create table t2 as select * from t1;
prepare stmt1 from ' select a in (select a from t2) from t1 ' ;
execute stmt1 ;
a in (select a from t2)
1
1
1
1
drop table if exists t5, t6, t7 ;
create table t5 (a int , b int) ;
create table t6 like t5 ;
create table t7 like t5 ;
insert into t5 values (0, 100), (1, 2), (1, 3), (2, 2), (2, 7),
(2, -1), (3, 10) ;
insert into t6 values (0, 0), (1, 1), (2, 1), (3, 1), (4, 1) ;
insert into t7 values (3, 3), (2, 2), (1, 1) ;
prepare stmt1 from ' select a, (select count(distinct t5.b) as sum from t5, t6
                     where t5.a=t6.a and t6.b > 0 and t5.a <= t7.b
                     group by t5.a order by sum limit 1) from t7 ' ;
execute stmt1 ;
a	(select count(distinct t5.b) as sum from t5, t6
                     where t5.a=t6.a and t6.b > 0 and t5.a <= t7.b
                     group by t5.a order by sum limit 1)
3	1
2	2
1	2
execute stmt1 ;
a	(select count(distinct t5.b) as sum from t5, t6
                     where t5.a=t6.a and t6.b > 0 and t5.a <= t7.b
                     group by t5.a order by sum limit 1)
3	1
2	2
1	2
execute stmt1 ;
a	(select count(distinct t5.b) as sum from t5, t6
                     where t5.a=t6.a and t6.b > 0 and t5.a <= t7.b
                     group by t5.a order by sum limit 1)
3	1
2	2
1	2
drop table t5, t6, t7 ;
drop table if exists t2 ;
create table t2 as select * from t9;
set @stmt= ' SELECT
   (SELECT SUM(c1 + c12 + 0.0) FROM t2 
    where (t9.c2 - 0e-3) = t2.c2
    GROUP BY t9.c15 LIMIT 1) as scalar_s,
   exists (select 1.0e+0 from t2 
           where t2.c3 * 9.0000000000 = t9.c4) as exists_s,
   c5 * 4 in (select c6 + 0.3e+1 from t2) as in_s,
   (c7 - 4, c8 - 4) in (select c9 + 4.0, c10 + 40e-1 from t2) as in_row_s
FROM t9,
(select c25 x, c32 y from t2) tt WHERE x = c25 ' ;
prepare stmt1 from @stmt ;
execute stmt1 ;
execute stmt1 ;
set @stmt= concat('explain ',@stmt);
prepare stmt1 from @stmt ;
execute stmt1 ;
execute stmt1 ;
set @stmt= ' SELECT
   (SELECT SUM(c1+c12+?) FROM t2 where (t9.c2-?)=t2.c2
    GROUP BY t9.c15 LIMIT 1) as scalar_s,
   exists (select ? from t2 
           where t2.c3*?=t9.c4) as exists_s,
   c5*? in (select c6+? from t2) as in_s,
   (c7-?, c8-?) in (select c9+?, c10+? from t2) as in_row_s
FROM t9,
(select c25 x, c32 y from t2) tt WHERE x =c25 ' ;
set @arg00= 0.0 ;
set @arg01= 0e-3 ;
set @arg02= 1.0e+0 ;
set @arg03= 9.0000000000 ;
set @arg04= 4 ;
set @arg05= 0.3e+1 ;
set @arg06= 4 ;
set @arg07= 4 ;
set @arg08= 4.0 ;
set @arg09= 40e-1 ;
prepare stmt1 from @stmt ;
execute stmt1 using @arg00, @arg01, @arg02, @arg03, @arg04, @arg05, @arg06,
@arg07, @arg08, @arg09 ;
execute stmt1 using @arg00, @arg01, @arg02, @arg03, @arg04, @arg05, @arg06,
@arg07, @arg08, @arg09 ;
set @stmt= concat('explain ',@stmt);
prepare stmt1 from @stmt ;
execute stmt1 using @arg00, @arg01, @arg02, @arg03, @arg04, @arg05, @arg06,
@arg07, @arg08, @arg09 ;
execute stmt1 using @arg00, @arg01, @arg02, @arg03, @arg04, @arg05, @arg06,
@arg07, @arg08, @arg09 ;
drop table t2 ;
select 1 < (select a from t1) ;
ERROR 21000: Subquery returns more than 1 row
prepare stmt1 from ' select 1 < (select a from t1) ' ;
execute stmt1 ;
ERROR 21000: Subquery returns more than 1 row
select 1 as my_col ;
my_col
1
test_sequence
------ union tests ------
prepare stmt1 from ' select a FROM t1 where a=1
                     union distinct
                     select a FROM t1 where a=1 ';
execute stmt1 ;
a
1
execute stmt1 ;
a
1
prepare stmt1 from ' select a FROM t1 where a=1
                     union all
                     select a FROM t1 where a=1 ';
execute stmt1 ;
a
1
1
prepare stmt1 from ' SELECT 1, 2 union SELECT 1 ' ;
ERROR 21000: The used SELECT statements have a different number of columns
prepare stmt1 from ' SELECT 1 union SELECT 1, 2 ' ;
ERROR 21000: The used SELECT statements have a different number of columns
prepare stmt1 from ' SELECT * from t1 union SELECT 1 ' ;
ERROR 21000: The used SELECT statements have a different number of columns
prepare stmt1 from ' SELECT 1 union SELECT * from t1 ' ;
ERROR 21000: The used SELECT statements have a different number of columns
set @arg00=1 ;
select @arg00 FROM t1 where a=1
union distinct
select 1 FROM t1 where a=1;
@arg00
1
prepare stmt1 from ' select ? FROM t1 where a=1
                     union distinct
                     select 1 FROM t1 where a=1 ' ;
execute stmt1 using @arg00;
?
1
set @arg00=1 ;
select 1 FROM t1 where a=1
union distinct
select @arg00 FROM t1 where a=1;
1
1
prepare stmt1 from ' select 1 FROM t1 where a=1
                     union distinct
                     select ? FROM t1 where a=1 ' ;
execute stmt1 using @arg00;
1
1
set @arg00='a' ;
select @arg00 FROM t1 where a=1
union distinct
select @arg00 FROM t1 where a=1;
@arg00
a
prepare stmt1 from ' select ? FROM t1 where a=1
                     union distinct
                     select ? FROM t1 where a=1 ';
execute stmt1 using @arg00, @arg00;
?
a
prepare stmt1 from ' select ? 
                     union distinct
                     select ? ';
execute stmt1 using @arg00, @arg00;
?
a
set @arg00='a' ;
set @arg01=1 ;
set @arg02='a' ;
set @arg03=2 ;
select @arg00 FROM t1 where a=@arg01
union distinct
select @arg02 FROM t1 where a=@arg03;
@arg00
a
prepare stmt1 from ' select ? FROM t1 where a=?
                     union distinct
                     select ? FROM t1 where a=? ' ;
execute stmt1 using @arg00, @arg01, @arg02, @arg03;
?
a
set @arg00=1 ;
prepare stmt1 from ' select sum(a) + 200, ? from t1
union distinct
select sum(a) + 200, 1 from t1
group by b ' ;
execute stmt1 using @arg00;
sum(a) + 200	?
210	1
204	1
201	1
203	1
202	1
set @Oporto='Oporto' ;
set @Lisboa='Lisboa' ;
set @0=0 ;
set @1=1 ;
set @2=2 ;
set @3=3 ;
set @4=4 ;
select @Oporto,@Lisboa,@0,@1,@2,@3,@4 ;
@Oporto	@Lisboa	@0	@1	@2	@3	@4
Oporto	Lisboa	0	1	2	3	4
select sum(a) + 200 as the_sum, @Oporto as the_town from t1
group by b
union distinct
select sum(a) + 200, @Lisboa from t1
group by b ;
the_sum	the_town
204	Oporto
201	Oporto
203	Oporto
202	Oporto
204	Lisboa
201	Lisboa
203	Lisboa
202	Lisboa
prepare stmt1 from ' select sum(a) + 200 as the_sum, ? as the_town from t1
                     group by b
                     union distinct
                     select sum(a) + 200, ? from t1
                     group by b ' ;
execute stmt1 using @Oporto, @Lisboa;
the_sum	the_town
204	Oporto
201	Oporto
203	Oporto
202	Oporto
204	Lisboa
201	Lisboa
203	Lisboa
202	Lisboa
select sum(a) + 200 as the_sum, @Oporto as the_town from t1
where a > @1
group by b
union distinct
select sum(a) + 200, @Lisboa from t1
where a > @2
group by b ;
the_sum	the_town
204	Oporto
203	Oporto
202	Oporto
204	Lisboa
203	Lisboa
prepare stmt1 from ' select sum(a) + 200 as the_sum, ? as the_town from t1
                     where a > ?
                     group by b
                     union distinct
                     select sum(a) + 200, ? from t1
                     where a > ?
                     group by b ' ;
execute stmt1 using @Oporto, @1, @Lisboa, @2;
the_sum	the_town
204	Oporto
203	Oporto
202	Oporto
204	Lisboa
203	Lisboa
select sum(a) + 200 as the_sum, @Oporto as the_town from t1
where a > @1
group by b
having avg(a) > @2
union distinct
select sum(a) + 200, @Lisboa from t1
where a > @2
group by b 
having avg(a) > @3;
the_sum	the_town
204	Oporto
203	Oporto
204	Lisboa
prepare stmt1 from ' select sum(a) + 200 as the_sum, ? as the_town from t1
                     where a > ?
                     group by b
                     having avg(a) > ?
                     union distinct
                     select sum(a) + 200, ? from t1
                     where a > ?
                     group by b
                     having avg(a) > ? ';
execute stmt1 using @Oporto, @1, @2, @Lisboa, @2, @3;
the_sum	the_town
204	Oporto
203	Oporto
204	Lisboa
test_sequence
------ explain select tests ------
prepare stmt1 from ' explain select * from t9 ' ;
execute stmt1;
Catalog	Database	Table	Table_alias	Column	Column_alias	Type	Length	Max length	Is_null	Flags	Decimals	Charsetnr
def					id	8	3	1	N	32929	0	63
def					select_type	253	19	6	N	1	31	8
def					table	253	64	2	Y	0	31	8
def					type	253	10	3	Y	0	31	8
def					possible_keys	253	4096	0	Y	0	31	8
def					key	253	64	0	Y	0	31	8
def					key_len	253	4096	0	Y	128	31	63
def					ref	253	1024	0	Y	0	31	8
def					rows	8	10	1	Y	32928	0	63
def					Extra	253	255	0	N	1	31	8
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t9	ALL	NULL	NULL	NULL	NULL	2	
test_sequence
------ delete tests ------
delete from t1 ;
insert into t1 values (1,'one');
insert into t1 values (2,'two');
insert into t1 values (3,'three');
insert into t1 values (4,'four');
commit ;
delete from t9 ;
insert into t9
set c1= 1, c2= 1, c3= 1, c4= 1, c5= 1, c6= 1, c7= 1, c8= 1, c9= 1,
c10= 1, c11= 1, c12 = 1,
c13= '2004-02-29', c14= '2004-02-29 11:11:11', c15= '2004-02-29 11:11:11',
c16= '11:11:11', c17= '2004',
c18= 1, c19=true, c20= 'a', c21= '123456789a', 
c22= '123456789a123456789b123456789c', c23= 'tinyblob', c24= 'tinytext',
c25= 'blob', c26= 'text', c27= 'mediumblob', c28= 'mediumtext',
c29= 'longblob', c30= 'longtext', c31='one', c32= 'monday';
insert into t9
set c1= 9, c2= 9, c3= 9, c4= 9, c5= 9, c6= 9, c7= 9, c8= 9, c9= 9,
c10= 9, c11= 9, c12 = 9,
c13= '2004-02-29', c14= '2004-02-29 11:11:11', c15= '2004-02-29 11:11:11',
c16= '11:11:11', c17= '2004',
c18= 1, c19=false, c20= 'a', c21= '123456789a', 
c22= '123456789a123456789b123456789c', c23= 'tinyblob', c24= 'tinytext',
c25= 'blob', c26= 'text', c27= 'mediumblob', c28= 'mediumtext',
c29= 'longblob', c30= 'longtext', c31='two', c32= 'tuesday';
commit ;
prepare stmt1 from 'delete from t1 where a=2' ;
execute stmt1;
select a,b from t1 where a=2;
a	b
execute stmt1;
insert into t1 values(0,NULL);
set @arg00=NULL;
prepare stmt1 from 'delete from t1 where b=?' ;
execute stmt1 using @arg00;
select a,b from t1 where b is NULL ;
a	b
0	NULL
set @arg00='one';
execute stmt1 using @arg00;
select a,b from t1 where b=@arg00;
a	b
prepare stmt1 from 'truncate table t1' ;
test_sequence
------ update tests ------
delete from t1 ;
insert into t1 values (1,'one');
insert into t1 values (2,'two');
insert into t1 values (3,'three');
insert into t1 values (4,'four');
commit ;
delete from t9 ;
insert into t9
set c1= 1, c2= 1, c3= 1, c4= 1, c5= 1, c6= 1, c7= 1, c8= 1, c9= 1,
c10= 1, c11= 1, c12 = 1,
c13= '2004-02-29', c14= '2004-02-29 11:11:11', c15= '2004-02-29 11:11:11',
c16= '11:11:11', c17= '2004',
c18= 1, c19=true, c20= 'a', c21= '123456789a', 
c22= '123456789a123456789b123456789c', c23= 'tinyblob', c24= 'tinytext',
c25= 'blob', c26= 'text', c27= 'mediumblob', c28= 'mediumtext',
c29= 'longblob', c30= 'longtext', c31='one', c32= 'monday';
insert into t9
set c1= 9, c2= 9, c3= 9, c4= 9, c5= 9, c6= 9, c7= 9, c8= 9, c9= 9,
c10= 9, c11= 9, c12 = 9,
c13= '2004-02-29', c14= '2004-02-29 11:11:11', c15= '2004-02-29 11:11:11',
c16= '11:11:11', c17= '2004',
c18= 1, c19=false, c20= 'a', c21= '123456789a', 
c22= '123456789a123456789b123456789c', c23= 'tinyblob', c24= 'tinytext',
c25= 'blob', c26= 'text', c27= 'mediumblob', c28= 'mediumtext',
c29= 'longblob', c30= 'longtext', c31='two', c32= 'tuesday';
commit ;
prepare stmt1 from 'update t1 set b=''a=two'' where a=2' ;
execute stmt1;
select a,b from t1 where a=2;
a	b
2	a=two
execute stmt1;
select a,b from t1 where a=2;
a	b
2	a=two
set @arg00=NULL;
prepare stmt1 from 'update t1 set b=? where a=2' ;
execute stmt1 using @arg00;
select a,b from t1 where a=2;
a	b
2	NULL
set @arg00='two';
execute stmt1 using @arg00;
select a,b from t1 where a=2;
a	b
2	two
set @arg00=2;
prepare stmt1 from 'update t1 set b=NULL where a=?' ;
execute stmt1 using @arg00;
select a,b from t1 where a=@arg00;
a	b
2	NULL