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test/mysql_test/test_suite/optimizer/r/mysql/bushy_leading_hint.result Normal file
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drop database if exists bushy_leading_hint_db;
create database bushy_leading_hint_db;
use bushy_leading_hint_db;
drop table if exists nn1;
drop table if exists nn2;
drop table if exists t1;
drop table if exists t2;
drop table if exists t3;
create table nn1(c1 int, c2 int, c3 varchar(10));
create table nn2(d1 int, d2 int, d3 varchar(10));
create table t1(a int, b int, c int);
create table t2(a int, b int, c int);
create table t3(a int, b int, c int);
### 1, 基本测试 ###
select /*+ leading(c, (b , a) ) */ count(*),sum(a.c1+b.d2*a.c2) from nn1 a join nn2 b on a.c1 = b.d2 join nn1 c on b.d1 = c.c1 where a.c2 < 5 ;
count(*) sum(a.c1+b.d2*a.c2)
0 NULL
select /*+ leading(c, (b , a) ) */ count(a.c1), sum(a.c2+b.d2) from nn1 a join nn2 b on a.c1 = b.d2 join nn1 c on c.c1 = b.d2 + 1 where a.c2 < 15 ;
count(a.c1) sum(a.c2+b.d2)
0 NULL
select /*+ leading((c, d), (a , b) ) */ count(*),sum(a.c1),sum(b.d2) from nn1 a join nn2 b on a.c1 = b.d2
join nn1 c on b.d1 = c.c1 join nn1 d on d.c2 = c.c2 where a.c2 < 5 ;
count(*) sum(a.c1) sum(b.d2)
0 NULL NULL
select /*+ leading(c, d, (a , b)) */ count(*),sum(a.c1+b.d1+c.c1-d.c2) from
nn1 a, nn2 b , nn1 c, nn1 d
where a.c1 = b.d2 and b.d1 = c.c1 and d.c2 = c.c2;
count(*) sum(a.c1+b.d1+c.c1-d.c2)
0 NULL
select /*+ leading(c, (a ,d, b) ) use_hash(c,d) */ count(a.c1),sum(b.d1*b.d2-a.c2) from nn1 a join nn2 b on a.c1 = b.d2
join nn1 c on b.d1 = c.c1 join nn1 d on d.c2 = c.c2 where a.c2 < 5 and d.c1 = b.d2
and d.c2 = a.c1 ;
count(a.c1) sum(b.d1*b.d2-a.c2)
0 NULL
select /*+ leading(c, (d, b) ) */ count(*)
from nn2 b, nn1 c, nn1 d
where b.d1 = c.c1 and d.c2 = c.c2 and d.c1 = b.d2;
count(*)
0
select /*+ leading(t2, (t1, t3), t7, (t8, t9), (t4, t5, t6)) */
count(*) from nn1 t1, nn1 t2, nn1 t3, nn1 t4, nn1 t5, nn1 t6 , nn1 t7, nn1 t8, nn1 t9
where t1.c1 = t2.c1 and t1.c1=t3.c2 and t2.c1 = t3.c1 and t3.c1 = t4.c1 and t4.c1 = t5.c1 and t5.c1 = t6.c1 AND
t6.c1 = t7.c1 and t7.c1 = t8.c1 and t8.c1 = t9.c1 and t8.c1 = t2.c1 and t1.c1 = t9.c1
and t1.c3 = 'hello11' and t2.c2 < 4 ;
count(*)
0
select /*+ leading(t1,t2,t3,(t4,t5,t6),(t7,t8)) */ count(*),sum(t1.c1+t2.d1+t3.c1+t4.d2-t5.c1+t6.d2-t7.c1-t8.d2)
from nn1 t1, nn2 t2, nn1 t3, nn2 t4, nn1 t5 , nn2 t6, nn1 t7, nn2 t8
where t1.c1 = t2.d1 and t1.c2 = t3.c1 and
t4.d1 = t1.c1 and t5.c1 = t2.d2 and t6.d2 = t3.c1 AND
t7.c1 = t2.d1 and t7.c2 = t5.c1 and t8.d1 = t4.d2 and t8.d2 = t6.d2;
count(*) sum(t1.c1+t2.d1+t3.c1+t4.d2-t5.c1+t6.d2-t7.c1-t8.d2)
0 NULL
select /*+ leading(c, (d, (a,b))) */ count(a.c1+b.d2+a.c2) from nn1 a join nn2 b on a.c1 = b.d2
join nn1 c on b.d1 = c.c1 join nn1 d on d.c2 = c.c2 where a.c2 < 5 ;
count(a.c1+b.d2+a.c2)
0
select /*+ leading(t2, (t1, (t3 , (t7, (t8, (t9 , (t4, (t5, (t6))))))))) */
count(*),sum(t1.c1+t2.c1+t3.c1+t4.c2-t5.c1+t6.c2-t7.c1-t8.c2)+count(t9.c1)
from nn1 t1, nn1 t2, nn1 t3, nn1 t4, nn1 t5, nn1 t6 , nn1 t7, nn1 t8, nn1 t9
where t1.c1 = t2.c1 and t1.c1=t3.c2 and t2.c1 = t3.c1 and t3.c1 = t4.c1 and t4.c1 = t5.c1 and t5.c1 = t6.c1 AND
t6.c1 = t7.c1 and t7.c1 = t8.c1 and t8.c1 = t9.c1 and t8.c1 = t2.c1 and t1.c1 = t9.c1;
count(*) sum(t1.c1+t2.c1+t3.c1+t4.c2-t5.c1+t6.c2-t7.c1-t8.c2)+count(t9.c1)
0 NULL
select /*+ leading(t1, ((t2, t3), t4), (t5, t6)) */ count(t1.c1), count(t2.d1 * t3.c1), sum(t4.d1 + t5.c1)
from nn1 t1, nn2 t2, nn1 t3, nn2 t4, nn1 t5, nn2 t6
where t1.c1 = t2.d1 and t1.c2 = t3.c1 and t1.c1 + t2.d2 = t4.d1 + t1.c2 and
t4.d1 = t5.c1 + t6.d2 and t2.d2 = t5.c1 and t2.d1 = t6.d2 and
t1.c1 + t4.d2 = t5.c2 + t6.d2 - 1;
count(t1.c1) count(t2.d1 * t3.c1) sum(t4.d1 + t5.c1)
0 0 NULL
select /*+ leading(t1, ((t2, t3), t4)) */ count(*), sum(t2.d1 * t3.c1 - t4.d2)
from nn1 t1, nn2 t2, nn1 t3, nn2 t4
where t1.c1 = t2.d1 and t1.c2 = t3.c1 and t1.c1 + t2.d2 = t4.d1 + t1.c2;
count(*) sum(t2.d1 * t3.c1 - t4.d2)
0 NULL
select /*+ leading(t1, (t2, t3)) */ count(*), sum(t2.d1+t3.c2)
from nn1 t1, nn2 t2, nn1 t3
where t1.c1 = t2.d1 and t1.c2 = t3.c1 and t1.c1 =t3.c1+t2.d2;
count(*) sum(t2.d1+t3.c2)
0 NULL
### 3, 复杂测试(集合、子查询中等) ###
SELECT count(*), sum(b.d1) from
nn1 a, nn2 b, nn1 c
WHERE
a.c1 = b.d1 and b.d2 = c.c1 and c.c2 in (
select
/*+ leading(x, ((y, z), x2, (y2,y3))) no_use_hash(y2, y3) */
x.c1
from nn1 x, nn2 y, nn1 z, nn1 x2, nn1 y2, nn1 y3
where x.c2 = y.d2 and y.d1 = z.c2 and y2.c1 = y3.c1
);
count(*) sum(b.d1)
0 NULL
select /*+ leading(t6, (t5, t4), (t3, t1), (t2)) */ count(*), sum(t2.c1) from nn1 t1, nn1 t2 , nn1 t3, nn1 t4, nn1 t5, nn1 t6
where t1.c1 = t2.c1 and t2.c2 = t3.c1 and t3.c2 = t4.c1 and t4.c2 = t5.c1 and t5.c2 = t6.c1 and t5.c2 <> 44
union ALL
select /* leading(t2, t1, (t4, t3, (t6, t5))) */ sum(t1.c1), max(t2.c2)+sum(t5.c1-t6.c2) from nn1 t1, nn1 t2 , nn1 t3, nn1 t4, nn1 t5, nn1 t6
where t1.c1 = t2.c1 and t2.c2 = t3.c1 and t3.c2 = t4.c1 and t4.c2 = t5.c1 and t5.c2 = t6.c1 and t5.c2 <> 55;
count(*) sum(t2.c1)
0 NULL
NULL NULL
select /*+ leading(t9, (t8, t7, (t6, t5), t4), (t3, t1), t2)*/ count(*),sum(t9.c1-t5.c1+t4.d2-t1.c1) from
nn1 t1, nn2 t2, nn1 t3, nn2 t4, nn1 t5, nn2 t6, nn1 t7, nn2 t8, nn1 t9
where mod(t1.c1, 3) = mod(t2.d2,2) and mod(t1.c1,5) = mod(t3.c1,4) and mod(t1.c2, 7) = mod(t4.d1, 3) AND
mod(t1.c2, 5) = mod(t5.c1, 6) and mod(t1.c1, 3) = mod(t6.d2, 2) and mod(t1.c1, 4) = mod(t7.c1,3) AND
mod(t1.c1, 7) = mod(t8.d1, 3) and mod(t1.c2, 5) = mod(t9.c1, 4) AND
mod(t2.d1,5) = mod(t3.c1,4) and mod(t2.d2, 7) = mod(t4.d1, 3) AND
mod(t2.d2, 5) = mod(t5.c1, 6) and mod(t2.d1, 3) = mod(t6.d2, 2) and mod(t2.d1, 4) = mod(t7.c1,3) AND
mod(t2.d1, 7) = mod(t8.d1, 3) and mod(t2.d2, 5) = mod(t9.c1, 4) AND
mod(t3.c2, 7) = mod(t4.d1, 3) AND
mod(t3.c2, 5) = mod(t5.c1, 6) and mod(t3.c1, 3) = mod(t6.d2, 2) and mod(t3.c1, 4) = mod(t7.c1,3) AND
mod(t3.c1, 7) = mod(t8.d1, 3) and mod(t3.c2, 5) = mod(t9.c1, 4) AND
mod(t4.d2, 5) = mod(t5.c1, 6) and mod(t4.d1, 3) = mod(t6.d2, 2) and mod(t4.d1, 4) = mod(t7.c1,3) AND
mod(t4.d1, 7) = mod(t8.d1, 3) and mod(t4.d2, 5) = mod(t9.c1, 4) and
mod(t5.c1, 2) = mod(t6.d2, 5) and mod(t5.c1, 4) = mod(t7.c1,1) AND
mod(t5.c1, 7) = mod(t8.d1, 6) and mod(t5.c2, 5) = mod(t9.c1, 4) AND
mod(t6.d1, 4) = mod(t7.c1,3) AND
mod(t6.d1, 7) = mod(t8.d1, 3) and mod(t6.d2, 5) = mod(t9.c1, 4) AND
mod(t7.c1, 7) = mod(t8.d1, 3) and mod(t7.c2, 5) = mod(t9.c1, 4) AND
mod(t8.d2, 5) = mod(t9.c1, 14) ;
count(*) sum(t9.c1-t5.c1+t4.d2-t1.c1)
0 NULL
select /*+ leading(a (c ,(b, d))) */ count(*),sum(a.c1) from nn1 a, (select * from nn2) b,
(select * from nn1 cc group by c1,c2) c, nn2 d
where a.c1 = c.c1 and b.d2 = d.d1 and c.c2 = d.d2;
count(*) sum(a.c1)
0 NULL
select /*+ leading(a (c ,(b, d))) */count(*), sum(b.d2) from nn1 a left join nn2 b
on a.c1 = b.d1 left join nn1 c on b.d2 = c.c1 left join nn2 d on c.c2 = d.d2
where a.c1 = b.d1 and b.d2 = c.c1 and c.c2 = d.d2;
count(*) sum(b.d2)
0 NULL
select (select /*+ leading(a (c ,(b, d))) */ count(x.c2) from nn1 a left join nn2 b
on a.c1 = b.d1 left join nn1 c on b.d2 = c.c1 left join nn2 d on c.c2 = d.d2
where a.c1 = b.d1 and b.d2 = c.c1 and c.c2 = d.d2 and x.c1 = a.c1 + b.d1 + c.c2 - d.d2 * 5) as x
from nn1 x;
x
NULL
select /* leading(t3 (t2 t1)) */ sum(t1.c1) from nn1 t1 , nn1 t2 , nn1 t3 where t2.c2=t1.c2 and t1.c1 =
(select /*+ leading(x,(y z)) */ count(*) from nn1 x, nn2 y, nn1 z where x.c1 = y.d1 and y.d2 = z.c1)
and t3.c1 in (1,2);
sum(t1.c1)
NULL
### 4, 错误、无效或冗余的指定测试 ###
select /*+ leading((d, c), b , a) */ count(*), sum(b.d1+d.d2) from nn1 a, nn2 b, nn1 c, nn2 d
where a.c1 = b.d1 and c.c2 = d.d1;
count(*) sum(b.d1+d.d2)
0 NULL
select /*+ leading((d, (c), (b)) , (a)) */ count(*),sum(a.c1+b.d2+c.c1+d.d2) from nn1 a, nn2 b, nn1 c, nn2 d
where a.c1 = b.d2 and c.c2 = d.d2;
count(*) sum(a.c1+b.d2+c.c1+d.d2)
0 NULL
select /*+ leading(b, (c d)) a) */ count(*), sum(b.d1+d.d2) from nn1 a, nn2 b, nn1 c, nn2 d
where a.c1 = b.d1 and c.c2 = d.d1;
count(*) sum(b.d1+d.d2)
0 NULL
select /*+ leading(b1, (c1 d1 ) a1) */ count(*), sum(b.d2+d.d1*c.c1-a.c1) from nn1 a, nn2 b, nn1 c, nn2 d
where a.c1 = b.d1 and c.c2 = d.d1;
count(*) sum(b.d2+d.d1*c.c1-a.c1)
0 NULL
select /*+ leading((((t2,t1,t4),t3),t5), (t6),(t7))*/ count(*), sum(t6.c1+t7.c1+t4.c2) from
nn1 t1, nn1 t2, nn1 t3, nn1 t4, nn1 t5, nn1 t6, nn1 t7
where t1.c1 = t2.c1 and t1.c1=t3.c2 and t2.c1 = t3.c1 and t3.c1 = t4.c1 and t4.c1 = t5.c1 and t5.c1 = t6.c1 AND
t6.c1 = t7.c1;
count(*) sum(t6.c1+t7.c1+t4.c2)
0 NULL
select /*+ leading(t4,t6,t5) */ count(*), sum(t2.c2+t3.c1)
from nn1 t1 left join nn1 t2 on t1.c1 = t2.c1 left JOIN
nn1 t3 on t3.c2 IN(1,23,4,2,5,6) join nn1 t4 on t3.c1=t4.c1 join nn1 t5 on t4.c2=t5.c2
join nn1 t6 on t5.c1 = t6.c2 left join nn1 t7 on t1.c1=t7.c1;
count(*) sum(t2.c2+t3.c1)
0 NULL
### 6, 嵌套hint和hint的print测试 ###
select /*+ leading(c, (a ,(d, b)) ) */ count(a.c1+b.d2) , sum(b.d2+b.d2*a.c1) from nn1 a join nn2 b on a.c1 = b.d2
join nn1 c on b.d1 = c.c1 join nn1 d on d.c2 = c.c2 where a.c2 < 5 and d.c1 = b.d2
and d.c2 = a.c1 ;
count(a.c1+b.d2) sum(b.d2+b.d2*a.c1)
0 NULL
create view v1 as select /*+ leading(c, b , a ) use_hash(b a) */ a.c1 as a_c1, a.c2 as a_c2, a.c3 as a_c3, b.d1, b.d2, b.d3, c.c1 as c_c1, c.c2 as c_c2, c.c3 as c_c3 from nn1 a join nn2 b on a.c1 = b.d2 join nn1 c on b.d1 = c.c1 where a.c2 < 5;
show create view v1;
View Create View character_set_client collation_connection
v1 CREATE VIEW `v1` AS select /*+ LEADING(c b a) USE_HASH((b) (a)) */`bushy_leading_hint_db`.`a`.`c1` AS `a_c1`,`bushy_leading_hint_db`.`a`.`c2` AS `a_c2`,`bushy_leading_hint_db`.`a`.`c3` AS `a_c3`,`bushy_leading_hint_db`.`b`.`d1` AS `d1`,`bushy_leading_hint_db`.`b`.`d2` AS `d2`,`bushy_leading_hint_db`.`b`.`d3` AS `d3`,`bushy_leading_hint_db`.`c`.`c1` AS `c_c1`,`bushy_leading_hint_db`.`c`.`c2` AS `c_c2`,`bushy_leading_hint_db`.`c`.`c3` AS `c_c3` from ((`bushy_leading_hint_db`.`nn1` `a` join `bushy_leading_hint_db`.`nn2` `b` on ((`bushy_leading_hint_db`.`a`.`c1` = `bushy_leading_hint_db`.`b`.`d2`))) join `bushy_leading_hint_db`.`nn1` `c` on ((`bushy_leading_hint_db`.`b`.`d1` = `bushy_leading_hint_db`.`c`.`c1`))) where (`bushy_leading_hint_db`.`a`.`c2` < 5) utf8mb4 utf8mb4_general_ci
create view v2 as select /*+ leading(c, (b , a)) */ a.c1 as a_c1, a.c2 as a_c2, a.c3 as a_c3, b.d1, b.d2, b.d3, c.c1 as c_c1, c.c2 as c_c2, c.c3 as c_c3 from nn1 a join nn2 b on a.c1 = b.d2 join nn1 c on b.d1 = c.c1 where a.c2 < 5 ;
show create view v2;
View Create View character_set_client collation_connection
v2 CREATE VIEW `v2` AS select /*+ LEADING(c (b a)) */`bushy_leading_hint_db`.`a`.`c1` AS `a_c1`,`bushy_leading_hint_db`.`a`.`c2` AS `a_c2`,`bushy_leading_hint_db`.`a`.`c3` AS `a_c3`,`bushy_leading_hint_db`.`b`.`d1` AS `d1`,`bushy_leading_hint_db`.`b`.`d2` AS `d2`,`bushy_leading_hint_db`.`b`.`d3` AS `d3`,`bushy_leading_hint_db`.`c`.`c1` AS `c_c1`,`bushy_leading_hint_db`.`c`.`c2` AS `c_c2`,`bushy_leading_hint_db`.`c`.`c3` AS `c_c3` from ((`bushy_leading_hint_db`.`nn1` `a` join `bushy_leading_hint_db`.`nn2` `b` on ((`bushy_leading_hint_db`.`a`.`c1` = `bushy_leading_hint_db`.`b`.`d2`))) join `bushy_leading_hint_db`.`nn1` `c` on ((`bushy_leading_hint_db`.`b`.`d1` = `bushy_leading_hint_db`.`c`.`c1`))) where (`bushy_leading_hint_db`.`a`.`c2` < 5) utf8mb4 utf8mb4_general_ci
create view v3 as select /*+ leading(c, (d, (a,b))) */ a.c1 as a_c1, a.c2 as a_c2, a.c3 as a_c3, b.d1, b.d2, b.d3, c.c1 as c_c1, c.c2 as c_c2, c.c3 as c_c3 from nn1 a join nn2 b
on a.c1 = b.d2
join nn1 c on b.d1 = c.c1 join nn1 d on d.c2 = c.c2 where a.c2 < 5 ;
show create view v3;
View Create View character_set_client collation_connection
v3 CREATE VIEW `v3` AS select /*+ LEADING(c (d (a b))) */`bushy_leading_hint_db`.`a`.`c1` AS `a_c1`,`bushy_leading_hint_db`.`a`.`c2` AS `a_c2`,`bushy_leading_hint_db`.`a`.`c3` AS `a_c3`,`bushy_leading_hint_db`.`b`.`d1` AS `d1`,`bushy_leading_hint_db`.`b`.`d2` AS `d2`,`bushy_leading_hint_db`.`b`.`d3` AS `d3`,`bushy_leading_hint_db`.`c`.`c1` AS `c_c1`,`bushy_leading_hint_db`.`c`.`c2` AS `c_c2`,`bushy_leading_hint_db`.`c`.`c3` AS `c_c3` from (((`bushy_leading_hint_db`.`nn1` `a` join `bushy_leading_hint_db`.`nn2` `b` on ((`bushy_leading_hint_db`.`a`.`c1` = `bushy_leading_hint_db`.`b`.`d2`))) join `bushy_leading_hint_db`.`nn1` `c` on ((`bushy_leading_hint_db`.`b`.`d1` = `bushy_leading_hint_db`.`c`.`c1`))) join `bushy_leading_hint_db`.`nn1` `d` on ((`bushy_leading_hint_db`.`d`.`c2` = `bushy_leading_hint_db`.`c`.`c2`))) where (`bushy_leading_hint_db`.`a`.`c2` < 5) utf8mb4 utf8mb4_general_ci
create view v4 as
select /*+ leading(t2, (t1, t3), (t7, (t8, t9)), (t4, t5, t6)) */
t1.c1 as x, t3.c2 as y, t5.c2 as z from nn1 t1, nn1 t2, nn1 t3, nn1 t4, nn1 t5, nn1 t6 , nn1 t7, nn1 t8, nn1 t9
where t1.c1 = t2.c1 and t1.c1=t3.c2 and t2.c1 = t3.c1 and t3.c1 = t4.c1 and t4.c1 = t5.c1 and t5.c1 = t6.c1 AND
t6.c1 = t7.c1 and t7.c1 = t8.c1 and t8.c1 = t9.c1 and t8.c1 = t2.c1 and t1.c1 = t9.c1;
show create view v4;
View Create View character_set_client collation_connection
v4 CREATE VIEW `v4` AS select /*+ LEADING(t2 (t1 t3) (t7 (t8 t9)) (t4 t5 t6)) */`bushy_leading_hint_db`.`t1`.`c1` AS `x`,`bushy_leading_hint_db`.`t3`.`c2` AS `y`,`bushy_leading_hint_db`.`t5`.`c2` AS `z` from `bushy_leading_hint_db`.`nn1` `t1`,`bushy_leading_hint_db`.`nn1` `t2`,`bushy_leading_hint_db`.`nn1` `t3`,`bushy_leading_hint_db`.`nn1` `t4`,`bushy_leading_hint_db`.`nn1` `t5`,`bushy_leading_hint_db`.`nn1` `t6`,`bushy_leading_hint_db`.`nn1` `t7`,`bushy_leading_hint_db`.`nn1` `t8`,`bushy_leading_hint_db`.`nn1` `t9` where (`bushy_leading_hint_db`.`t1`.`c1` = `bushy_leading_hint_db`.`t2`.`c1`) and (`bushy_leading_hint_db`.`t1`.`c1` = `bushy_leading_hint_db`.`t3`.`c2`) and (`bushy_leading_hint_db`.`t2`.`c1` = `bushy_leading_hint_db`.`t3`.`c1`) and (`bushy_leading_hint_db`.`t3`.`c1` = `bushy_leading_hint_db`.`t4`.`c1`) and (`bushy_leading_hint_db`.`t4`.`c1` = `bushy_leading_hint_db`.`t5`.`c1`) and (`bushy_leading_hint_db`.`t5`.`c1` = `bushy_leading_hint_db`.`t6`.`c1`) and (`bushy_leading_hint_db`.`t6`.`c1` = `bushy_leading_hint_db`.`t7`.`c1`) and (`bushy_leading_hint_db`.`t7`.`c1` = `bushy_leading_hint_db`.`t8`.`c1`) and (`bushy_leading_hint_db`.`t8`.`c1` = `bushy_leading_hint_db`.`t9`.`c1`) and (`bushy_leading_hint_db`.`t8`.`c1` = `bushy_leading_hint_db`.`t2`.`c1`) and (`bushy_leading_hint_db`.`t1`.`c1` = `bushy_leading_hint_db`.`t9`.`c1`) utf8mb4 utf8mb4_general_ci
select count(*), sum(x+y-z*4) from v4;
count(*) sum(x+y-z*4)
0 NULL
select /*+ leading(t2, (t1, t3), (t7, (t8, t9))) */
count(*)+sum(t1.c1+t4.c2+t5.c1+t5.c2-5*t9.c1) from nn1 t1, nn1 t2, nn1 t3, nn1 t4, nn1 t5, nn1 t6 , nn1 t7, nn1 t8, nn1 t9
where t1.c1 = t2.c1 and t1.c1=t3.c2 and t2.c1 = t3.c1 and t3.c1 = t4.c1 and t4.c1 = t5.c1 and t5.c1 = t6.c1 AND
t6.c1 = t7.c1 and t7.c1 = t8.c1 and t8.c1 = t9.c1 and t8.c1 = t2.c1 and t1.c1 = t9.c1;
count(*)+sum(t1.c1+t4.c2+t5.c1+t5.c2-5*t9.c1)
NULL
select /*+ leading(t2, t1, t3, (t4, (t5, t6)), (t8, (t9, t7))) */
count(*), sum(t1.c1+t5.c1+t6.c1-t7.c1-t8.c2*t9.c1) from nn1 t1, nn1 t2, nn1 t3, nn1 t4, nn1 t5, nn1 t6 , nn1 t7, nn1 t8, nn1 t9
where t1.c1 = t2.c1 and t1.c1=t3.c2 and t2.c1 = t3.c1 and t3.c1 >= t4.c1 and t4.c1 = t5.c1 and t5.c1 = t6.c1 AND
t6.c1 = t7.c1 and t7.c1 = t8.c2 and t8.c2 = t9.c1 and t8.c1 <= t2.c1 and t1.c1 = t9.c1;
count(*) sum(t1.c1+t5.c1+t6.c1-t7.c1-t8.c2*t9.c1)
0 NULL
select /*+ leading(t2, (t1, t3), (t7, t8, t9), (t4, t5, t6)) */
count(*), sum(t1.c1-t7.c2-t8.c1-t9.c2) from nn1 t1, nn1 t2, nn1 t3, nn1 t4, nn1 t5, nn1 t6 , nn1 t7, nn1 t8, nn1 t9
where t1.c1 = t2.c1 and t1.c1=t3.c2 and t2.c1 = t3.c1 and t3.c1 = t4.c1 and t4.c1 = t5.c1 and t5.c1 = t6.c1 AND
t6.c1 = t7.c1 and t7.c1 = t8.c1 and t8.c1 = t9.c1 and t8.c1 = t2.c1 and t1.c1 = t9.c1;
count(*) sum(t1.c1-t7.c2-t8.c1-t9.c2)
0 NULL
select /*+ leading(t1, (t2 t3), (t4, t5 (t6, t7))) use_hash(t4, t5) use_hash(t6,t7) */
count(*), sum(t1.c1-t5.c2+t6.c1) - max(t2.c1*t8.c2) from nn1 t1, nn1 t2, nn1 t3, nn1 t4, nn1 t5, nn1 t6 , nn1 t7, nn1 t8, nn1 t9
where t1.c1 = t2.c1 and t1.c1=t3.c2 and t2.c1 = t3.c1 and t3.c1 = t4.c1 and t4.c1 = t5.c1 and t5.c1 = t6.c1 AND
t6.c1 = t7.c1 and t7.c1 = t8.c1 and t8.c1 = t9.c1 and t8.c1 = t2.c1 and t1.c1 = t9.c1;
count(*) sum(t1.c1-t5.c2+t6.c1) - max(t2.c1*t8.c2)
0 NULL
select /*+ leading(t2 (t7, t1 (t8, t9))) */
count(*) , sum(t1.c1+t5.c1+t8.c2*t9.c1-t3.c1*4) from nn1 t1, nn1 t2, nn1 t3, nn1 t4, nn1 t5, nn1 t6 , nn1 t7, nn1 t8, nn1 t9
where t1.c1 = t2.c1 and t1.c1=t3.c2 and t2.c1 = t3.c1 and t3.c1 = t4.c1 and t4.c1 = t5.c1 and t5.c1 = t6.c1 AND
t6.c1 = t7.c1 and t7.c1 = t8.c1 and t8.c1 = t9.c1 and t8.c1 = t2.c1 and t1.c1 = t9.c1;
count(*) sum(t1.c1+t5.c1+t8.c2*t9.c1-t3.c1*4)
0 NULL
select /*+ leading(t1,t4,(t2,t3)) */
count(*), sum(t1.c1)-sum(t4.c2) from nn1 t1, nn1 t2, nn1 t3, nn1 t4
where t1.c1 = t2.c1 and t3.c1 = t4.c1 and t1.c2 = t3.c2;
count(*) sum(t1.c1)-sum(t4.c2)
0 NULL
### 7, 带qb_name的测试 ###
select /*+ LEADING(@x2x (c d), (a b)) */
* from nn1 x
where exists (select /*+ qb_name(x2x) */ 1
from nn1 a, nn2 b, nn1 c, nn2 d where a.c1 = b.d1
and c.c2 = d.d1) order by x.c1 asc, x.c2 asc, x.c3 desc;
c1 c2 c3
select /*+ LEADING(@x2x (c d), (a b)) */
* from nn1 x
where exists (select /*+ qb_name(x2x) LEADING(a c b d)*/ 1
from nn1 a, nn2 b, nn1 c, nn2 d where a.c1 = b.d1
and c.c2 = d.d1) order by x.c1 desc, x.c2 asc, x.c3 desc;
c1 c2 c3
select /*+ LEADING(@x3x b d (a c)) */
* from nn1 x
where exists (select /*+ qb_name(x3x) */ 1
from nn1 a, nn2 b, nn1 c, nn2 d where a.c1 = b.d1
and c.c2 = d.d1) order by x.c1 desc, x.c3 desc, x.c2 asc ;
c1 c2 c3
### 8, 通过bushy 扩展能获取较好的计划 ###
select /*+ leading(t1,t2,(t4,t5))*/ count(*),min(t2.c1)+max(t5.d2) from nn1 t1, nn1 t2, nn2 t4, nn2 t5
where t1.c1 = t2.c1 and
t4.d1 = t5.d1 AND
t1.c1 + t2.c1 = t4.d1 + t5.d2 ;
count(*) min(t2.c1)+max(t5.d2)
0 NULL
explain select /*+leading(t1 (t2 t3))*/* from t1,t3 where t1.a = t3.a and t1.b not in (select b from t2);
Query Plan
=====================================================
|ID|OPERATOR |NAME|EST. ROWS|COST |
-----------------------------------------------------
|0 |HASH JOIN | |960597 |2820926886|
|1 | NESTED-LOOP ANTI JOIN| |981 |2820256644|
|2 | TABLE SCAN |t1 |100000 |66272 |
|3 | MATERIAL | |100000 |80235 |
|4 | TABLE SCAN |t2 |100000 |61860 |
|5 | TABLE SCAN |t3 |100000 |66272 |
=====================================================
Outputs & filters:
-------------------------------------
0 - output([t1.a], [t1.b], [t1.c], [t3.a], [t3.b], [t3.c]), filter(nil),
equal_conds([t1.a = t3.a]), other_conds(nil)
1 - output([t1.a], [t1.b], [t1.c]), filter(nil),
conds([(T_OP_OR, t1.b = t2.b, (T_OP_IS, t1.b, NULL, 0), (T_OP_IS, t2.b, NULL, 0))]), nl_params_(nil)
2 - output([t1.a], [t1.b], [t1.c]), filter(nil),
access([t1.a], [t1.b], [t1.c]), partitions(p0)
3 - output([t2.b]), filter(nil)
4 - output([t2.b]), filter(nil),
access([t2.b]), partitions(p0)
5 - output([t3.a], [t3.b], [t3.c]), filter(nil),
access([t3.a], [t3.b], [t3.c]), partitions(p0)
explain select /*+leading(t2 t3 t1)*/* from t1,t3 where t1.a = t3.a and t1.b not in (select b from t2);
Query Plan
=====================================================
|ID|OPERATOR |NAME|EST. ROWS|COST |
-----------------------------------------------------
|0 |HASH JOIN | |960597 |2820926886|
|1 | NESTED-LOOP ANTI JOIN| |981 |2820256644|
|2 | TABLE SCAN |t1 |100000 |66272 |
|3 | MATERIAL | |100000 |80235 |
|4 | TABLE SCAN |t2 |100000 |61860 |
|5 | TABLE SCAN |t3 |100000 |66272 |
=====================================================
Outputs & filters:
-------------------------------------
0 - output([t1.a], [t1.b], [t1.c], [t3.a], [t3.b], [t3.c]), filter(nil),
equal_conds([t1.a = t3.a]), other_conds(nil)
1 - output([t1.a], [t1.b], [t1.c]), filter(nil),
conds([(T_OP_OR, t1.b = t2.b, (T_OP_IS, t1.b, NULL, 0), (T_OP_IS, t2.b, NULL, 0))]), nl_params_(nil)
2 - output([t1.a], [t1.b], [t1.c]), filter(nil),
access([t1.a], [t1.b], [t1.c]), partitions(p0)
3 - output([t2.b]), filter(nil)
4 - output([t2.b]), filter(nil),
access([t2.b]), partitions(p0)
5 - output([t3.a], [t3.b], [t3.c]), filter(nil),
access([t3.a], [t3.b], [t3.c]), partitions(p0)
explain select /*+leading(t3 t1 t2)*/* from t1,t3 where t1.a = t3.a and t1.b not in (select b from t2);
Query Plan
=======================================================
|ID|OPERATOR |NAME|EST. ROWS|COST |
-------------------------------------------------------
|0 |NESTED-LOOP ANTI JOIN| |960597 |2.764048e+12 |
|1 | HASH JOIN | |98010000 |58439627 |
|2 | TABLE SCAN |t3 |100000 |66272 |
|3 | TABLE SCAN |t1 |100000 |66272 |
|4 | MATERIAL | |100000 |80235 |
|5 | TABLE SCAN |t2 |100000 |61860 |
=======================================================
Outputs & filters:
-------------------------------------
0 - output([t1.a], [t1.b], [t1.c], [t3.a], [t3.b], [t3.c]), filter(nil),
conds([(T_OP_OR, t1.b = t2.b, (T_OP_IS, t1.b, NULL, 0), (T_OP_IS, t2.b, NULL, 0))]), nl_params_(nil)
1 - output([t1.a], [t1.b], [t1.c], [t3.a], [t3.b], [t3.c]), filter(nil),
equal_conds([t1.a = t3.a]), other_conds(nil)
2 - output([t3.a], [t3.b], [t3.c]), filter(nil),
access([t3.a], [t3.b], [t3.c]), partitions(p0)
3 - output([t1.a], [t1.b], [t1.c]), filter(nil),
access([t1.a], [t1.b], [t1.c]), partitions(p0)
4 - output([t2.b]), filter(nil)
5 - output([t2.b]), filter(nil),
access([t2.b]), partitions(p0)
explain select /*+leading(t1 t2 t3)*/* from t1,t3 where t1.a = t3.a and t1.b not in (select b from t2);
Query Plan
=====================================================
|ID|OPERATOR |NAME|EST. ROWS|COST |
-----------------------------------------------------
|0 |HASH JOIN | |960597 |2820926886|
|1 | NESTED-LOOP ANTI JOIN| |981 |2820256644|
|2 | TABLE SCAN |t1 |100000 |66272 |
|3 | MATERIAL | |100000 |80235 |
|4 | TABLE SCAN |t2 |100000 |61860 |
|5 | TABLE SCAN |t3 |100000 |66272 |
=====================================================
Outputs & filters:
-------------------------------------
0 - output([t1.a], [t1.b], [t1.c], [t3.a], [t3.b], [t3.c]), filter(nil),
equal_conds([t1.a = t3.a]), other_conds(nil)
1 - output([t1.a], [t1.b], [t1.c]), filter(nil),
conds([(T_OP_OR, t1.b = t2.b, (T_OP_IS, t1.b, NULL, 0), (T_OP_IS, t2.b, NULL, 0))]), nl_params_(nil)
2 - output([t1.a], [t1.b], [t1.c]), filter(nil),
access([t1.a], [t1.b], [t1.c]), partitions(p0)
3 - output([t2.b]), filter(nil)
4 - output([t2.b]), filter(nil),
access([t2.b]), partitions(p0)
5 - output([t3.a], [t3.b], [t3.c]), filter(nil),
access([t3.a], [t3.b], [t3.c]), partitions(p0)
drop table nn1;
drop table nn2;
drop table t1;
drop table t2;
drop table t3;
drop database bushy_leading_hint_db;

381
test/mysql_test/test_suite/optimizer/r/mysql/default_statistic.result Normal file
View File

@ -0,0 +1,381 @@
drop table if exists t1, t2, t3;
create table t1(c1 int, c2 int, c3 int, c4 int, c5 int, c6 int, c7 int, c8 int, c9 int, c10 int,
index k1(c1),
index k2(c1,c2),
index k3(c1,c2,c3),
index k4(c1,c2,c3,c4),
index k5(c1,c2,c3,c4,c5));
create table t2(c1 int, c2 int, c3 int, c4 int, c5 int, c6 int, c7 int, c8 int, c9 int, c10 int,
primary key(c1, c6, c7),
index k1(c1),
index k2(c1,c2),
index k3(c1,c2,c3),
index k4(c1,c2,c3,c4),
index k5(c1,c2,c3,c4,c5));
create table t3(c1 int, c2 int, c3 int, c4 int, c5 int, c6 int, c7 int, c8 int, c9 int, c10 int,
primary key(c1, c2, c6),
index k1(c1),
index k2(c1,c2),
index k3(c1,c2,c3),
index k4(c1,c2,c3,c4),
index k5(c1,c2,c3,c4,c5));
explain select count(*) from t1;
Query Plan
===========================================
|ID|OPERATOR |NAME |EST. ROWS|COST |
-------------------------------------------
|0 |SCALAR GROUP BY| |1 |43045|
|1 | TABLE SCAN |t1(k1)|100000 |23944|
===========================================
Outputs & filters:
-------------------------------------
0 - output([T_FUN_COUNT(*)]), filter(nil),
group(nil), agg_func([T_FUN_COUNT(*)])
1 - output([1]), filter(nil),
access([t1.c1]), partitions(p0)
explain select * from t1 where c1 = 1;
Query Plan
=====================================
|ID|OPERATOR |NAME |EST. ROWS|COST|
-------------------------------------
|0 |TABLE SCAN|t1(k1)|990 |6209|
=====================================
Outputs & filters:
-------------------------------------
0 - output([t1.c1], [t1.c2], [t1.c3], [t1.c4], [t1.c5], [t1.c6], [t1.c7], [t1.c8], [t1.c9], [t1.c10]), filter(nil),
access([t1.c1], [t1.c2], [t1.c3], [t1.c4], [t1.c5], [t1.c6], [t1.c7], [t1.c8], [t1.c9], [t1.c10]), partitions(p0)
explain select * from t1 where c1 < 1;
Query Plan
======================================
|ID|OPERATOR |NAME |EST. ROWS|COST |
--------------------------------------
|0 |TABLE SCAN|t1(k1)|10000 |62113|
======================================
Outputs & filters:
-------------------------------------
0 - output([t1.c1], [t1.c2], [t1.c3], [t1.c4], [t1.c5], [t1.c6], [t1.c7], [t1.c8], [t1.c9], [t1.c10]), filter(nil),
access([t1.c1], [t1.c2], [t1.c3], [t1.c4], [t1.c5], [t1.c6], [t1.c7], [t1.c8], [t1.c9], [t1.c10]), partitions(p0)
explain select * from t1 where c1 > 1;
Query Plan
======================================
|ID|OPERATOR |NAME |EST. ROWS|COST |
--------------------------------------
|0 |TABLE SCAN|t1(k1)|10000 |62113|
======================================
Outputs & filters:
-------------------------------------
0 - output([t1.c1], [t1.c2], [t1.c3], [t1.c4], [t1.c5], [t1.c6], [t1.c7], [t1.c8], [t1.c9], [t1.c10]), filter(nil),
access([t1.c1], [t1.c2], [t1.c3], [t1.c4], [t1.c5], [t1.c6], [t1.c7], [t1.c8], [t1.c9], [t1.c10]), partitions(p0)
explain select * from t1 where c1 > 1 and c1 < 10;
Query Plan
======================================
|ID|OPERATOR |NAME |EST. ROWS|COST |
--------------------------------------
|0 |TABLE SCAN|t1(k1)|5000 |31098|
======================================
Outputs & filters:
-------------------------------------
0 - output([t1.c1], [t1.c2], [t1.c3], [t1.c4], [t1.c5], [t1.c6], [t1.c7], [t1.c8], [t1.c9], [t1.c10]), filter(nil),
access([t1.c1], [t1.c2], [t1.c3], [t1.c4], [t1.c5], [t1.c6], [t1.c7], [t1.c8], [t1.c9], [t1.c10]), partitions(p0)
explain select * from t1 where c1 = 1 and c2 < 1;
Query Plan
=====================================
|ID|OPERATOR |NAME |EST. ROWS|COST|
-------------------------------------
|0 |TABLE SCAN|t1(k2)|99 |679 |
=====================================
Outputs & filters:
-------------------------------------
0 - output([t1.c1], [t1.c2], [t1.c3], [t1.c4], [t1.c5], [t1.c6], [t1.c7], [t1.c8], [t1.c9], [t1.c10]), filter(nil),
access([t1.c1], [t1.c2], [t1.c3], [t1.c4], [t1.c5], [t1.c6], [t1.c7], [t1.c8], [t1.c9], [t1.c10]), partitions(p0)
explain select * from t1 where c1 = 1 and c2 = 1;
Query Plan
=====================================
|ID|OPERATOR |NAME |EST. ROWS|COST|
-------------------------------------
|0 |TABLE SCAN|t1(k2)|10 |142 |
=====================================
Outputs & filters:
-------------------------------------
0 - output([t1.c1], [t1.c2], [t1.c3], [t1.c4], [t1.c5], [t1.c6], [t1.c7], [t1.c8], [t1.c9], [t1.c10]), filter(nil),
access([t1.c1], [t1.c2], [t1.c3], [t1.c4], [t1.c5], [t1.c6], [t1.c7], [t1.c8], [t1.c9], [t1.c10]), partitions(p0)
explain select * from t1 where c1 = 1 and c2 = 1 and c3 < 1;
Query Plan
=====================================
|ID|OPERATOR |NAME |EST. ROWS|COST|
-------------------------------------
|0 |TABLE SCAN|t1(k3)|1 |89 |
=====================================
Outputs & filters:
-------------------------------------
0 - output([t1.c1], [t1.c2], [t1.c3], [t1.c4], [t1.c5], [t1.c6], [t1.c7], [t1.c8], [t1.c9], [t1.c10]), filter(nil),
access([t1.c1], [t1.c2], [t1.c3], [t1.c4], [t1.c5], [t1.c6], [t1.c7], [t1.c8], [t1.c9], [t1.c10]), partitions(p0)
explain select * from t1 where c1 = 1 and c2 = 1 and c3 = 1;
Query Plan
=====================================
|ID|OPERATOR |NAME |EST. ROWS|COST|
-------------------------------------
|0 |TABLE SCAN|t1(k3)|1 |89 |
=====================================
Outputs & filters:
-------------------------------------
0 - output([t1.c1], [t1.c2], [t1.c3], [t1.c4], [t1.c5], [t1.c6], [t1.c7], [t1.c8], [t1.c9], [t1.c10]), filter(nil),
access([t1.c1], [t1.c2], [t1.c3], [t1.c4], [t1.c5], [t1.c6], [t1.c7], [t1.c8], [t1.c9], [t1.c10]), partitions(p0)
explain select count(*) from t2;
Query Plan
===========================================
|ID|OPERATOR |NAME |EST. ROWS|COST |
-------------------------------------------
|0 |SCALAR GROUP BY| |1 |52640|
|1 | TABLE SCAN |t2(k1)|100000 |33539|
===========================================
Outputs & filters:
-------------------------------------
0 - output([T_FUN_COUNT(*)]), filter(nil),
group(nil), agg_func([T_FUN_COUNT(*)])
1 - output([1]), filter(nil),
access([t2.c1]), partitions(p0)
explain select * from t2 where c1 = 1;
Query Plan
===================================
|ID|OPERATOR |NAME|EST. ROWS|COST|
-----------------------------------
|0 |TABLE SCAN|t2 |990 |820 |
===================================
Outputs & filters:
-------------------------------------
0 - output([t2.c1], [t2.c2], [t2.c3], [t2.c4], [t2.c5], [t2.c6], [t2.c7], [t2.c8], [t2.c9], [t2.c10]), filter(nil),
access([t2.c1], [t2.c2], [t2.c3], [t2.c4], [t2.c5], [t2.c6], [t2.c7], [t2.c8], [t2.c9], [t2.c10]), partitions(p0)
explain select * from t2 where c1 < 1;
Query Plan
===================================
|ID|OPERATOR |NAME|EST. ROWS|COST|
-----------------------------------
|0 |TABLE SCAN|t2 |10000 |7983|
===================================
Outputs & filters:
-------------------------------------
0 - output([t2.c1], [t2.c2], [t2.c3], [t2.c4], [t2.c5], [t2.c6], [t2.c7], [t2.c8], [t2.c9], [t2.c10]), filter(nil),
access([t2.c1], [t2.c2], [t2.c3], [t2.c4], [t2.c5], [t2.c6], [t2.c7], [t2.c8], [t2.c9], [t2.c10]), partitions(p0)
explain select * from t2 where c1 > 1;
Query Plan
===================================
|ID|OPERATOR |NAME|EST. ROWS|COST|
-----------------------------------
|0 |TABLE SCAN|t2 |10000 |7983|
===================================
Outputs & filters:
-------------------------------------
0 - output([t2.c1], [t2.c2], [t2.c3], [t2.c4], [t2.c5], [t2.c6], [t2.c7], [t2.c8], [t2.c9], [t2.c10]), filter(nil),
access([t2.c1], [t2.c2], [t2.c3], [t2.c4], [t2.c5], [t2.c6], [t2.c7], [t2.c8], [t2.c9], [t2.c10]), partitions(p0)
explain select * from t2 where c1 > 1 and c1 < 10;
Query Plan
===================================
|ID|OPERATOR |NAME|EST. ROWS|COST|
-----------------------------------
|0 |TABLE SCAN|t2 |5000 |4010|
===================================
Outputs & filters:
-------------------------------------
0 - output([t2.c1], [t2.c2], [t2.c3], [t2.c4], [t2.c5], [t2.c6], [t2.c7], [t2.c8], [t2.c9], [t2.c10]), filter(nil),
access([t2.c1], [t2.c2], [t2.c3], [t2.c4], [t2.c5], [t2.c6], [t2.c7], [t2.c8], [t2.c9], [t2.c10]), partitions(p0)
explain select * from t2 where c1 = 1 and c2 < 1;
Query Plan
=====================================
|ID|OPERATOR |NAME |EST. ROWS|COST|
-------------------------------------
|0 |TABLE SCAN|t2(k2)|99 |675 |
=====================================
Outputs & filters:
-------------------------------------
0 - output([t2.c1], [t2.c2], [t2.c3], [t2.c4], [t2.c5], [t2.c6], [t2.c7], [t2.c8], [t2.c9], [t2.c10]), filter(nil),
access([t2.c1], [t2.c2], [t2.c3], [t2.c4], [t2.c5], [t2.c6], [t2.c7], [t2.c8], [t2.c9], [t2.c10]), partitions(p0)
explain select * from t2 where c1 = 1 and c2 = 1;
Query Plan
=====================================
|ID|OPERATOR |NAME |EST. ROWS|COST|
-------------------------------------
|0 |TABLE SCAN|t2(k2)|10 |142 |
=====================================
Outputs & filters:
-------------------------------------
0 - output([t2.c1], [t2.c2], [t2.c3], [t2.c4], [t2.c5], [t2.c6], [t2.c7], [t2.c8], [t2.c9], [t2.c10]), filter(nil),
access([t2.c1], [t2.c2], [t2.c3], [t2.c4], [t2.c5], [t2.c6], [t2.c7], [t2.c8], [t2.c9], [t2.c10]), partitions(p0)
explain select * from t2 where c1 = 1 and c2 = 1 and c3 < 1;
Query Plan
=====================================
|ID|OPERATOR |NAME |EST. ROWS|COST|
-------------------------------------
|0 |TABLE SCAN|t2(k3)|1 |89 |
=====================================
Outputs & filters:
-------------------------------------
0 - output([t2.c1], [t2.c2], [t2.c3], [t2.c4], [t2.c5], [t2.c6], [t2.c7], [t2.c8], [t2.c9], [t2.c10]), filter(nil),
access([t2.c1], [t2.c2], [t2.c3], [t2.c4], [t2.c5], [t2.c6], [t2.c7], [t2.c8], [t2.c9], [t2.c10]), partitions(p0)
explain select * from t2 where c1 = 1 and c2 = 1 and c3 = 1;
Query Plan
=====================================
|ID|OPERATOR |NAME |EST. ROWS|COST|
-------------------------------------
|0 |TABLE SCAN|t2(k3)|1 |89 |
=====================================
Outputs & filters:
-------------------------------------
0 - output([t2.c1], [t2.c2], [t2.c3], [t2.c4], [t2.c5], [t2.c6], [t2.c7], [t2.c8], [t2.c9], [t2.c10]), filter(nil),
access([t2.c1], [t2.c2], [t2.c3], [t2.c4], [t2.c5], [t2.c6], [t2.c7], [t2.c8], [t2.c9], [t2.c10]), partitions(p0)
explain select count(*) from t3;
Query Plan
===========================================
|ID|OPERATOR |NAME |EST. ROWS|COST |
-------------------------------------------
|0 |SCALAR GROUP BY| |1 |52640|
|1 | TABLE SCAN |t3(k1)|100000 |33539|
===========================================
Outputs & filters:
-------------------------------------
0 - output([T_FUN_COUNT(*)]), filter(nil),
group(nil), agg_func([T_FUN_COUNT(*)])
1 - output([1]), filter(nil),
access([t3.c1]), partitions(p0)
explain select * from t3 where c1 = 1;
Query Plan
===================================
|ID|OPERATOR |NAME|EST. ROWS|COST|
-----------------------------------
|0 |TABLE SCAN|t3 |990 |820 |
===================================
Outputs & filters:
-------------------------------------
0 - output([t3.c1], [t3.c2], [t3.c3], [t3.c4], [t3.c5], [t3.c6], [t3.c7], [t3.c8], [t3.c9], [t3.c10]), filter(nil),
access([t3.c1], [t3.c2], [t3.c3], [t3.c4], [t3.c5], [t3.c6], [t3.c7], [t3.c8], [t3.c9], [t3.c10]), partitions(p0)
explain select * from t3 where c1 < 1;
Query Plan
===================================
|ID|OPERATOR |NAME|EST. ROWS|COST|
-----------------------------------
|0 |TABLE SCAN|t3 |10000 |7983|
===================================
Outputs & filters:
-------------------------------------
0 - output([t3.c1], [t3.c2], [t3.c3], [t3.c4], [t3.c5], [t3.c6], [t3.c7], [t3.c8], [t3.c9], [t3.c10]), filter(nil),
access([t3.c1], [t3.c2], [t3.c3], [t3.c4], [t3.c5], [t3.c6], [t3.c7], [t3.c8], [t3.c9], [t3.c10]), partitions(p0)
explain select * from t3 where c1 > 1;
Query Plan
===================================
|ID|OPERATOR |NAME|EST. ROWS|COST|
-----------------------------------
|0 |TABLE SCAN|t3 |10000 |7983|
===================================
Outputs & filters:
-------------------------------------
0 - output([t3.c1], [t3.c2], [t3.c3], [t3.c4], [t3.c5], [t3.c6], [t3.c7], [t3.c8], [t3.c9], [t3.c10]), filter(nil),
access([t3.c1], [t3.c2], [t3.c3], [t3.c4], [t3.c5], [t3.c6], [t3.c7], [t3.c8], [t3.c9], [t3.c10]), partitions(p0)
explain select * from t3 where c1 > 1 and c1 < 10;
Query Plan
===================================
|ID|OPERATOR |NAME|EST. ROWS|COST|
-----------------------------------
|0 |TABLE SCAN|t3 |5000 |4010|
===================================
Outputs & filters:
-------------------------------------
0 - output([t3.c1], [t3.c2], [t3.c3], [t3.c4], [t3.c5], [t3.c6], [t3.c7], [t3.c8], [t3.c9], [t3.c10]), filter(nil),
access([t3.c1], [t3.c2], [t3.c3], [t3.c4], [t3.c5], [t3.c6], [t3.c7], [t3.c8], [t3.c9], [t3.c10]), partitions(p0)
explain select * from t3 where c1 = 1 and c2 < 1;
Query Plan
===================================
|ID|OPERATOR |NAME|EST. ROWS|COST|
-----------------------------------
|0 |TABLE SCAN|t3 |99 |107 |
===================================
Outputs & filters:
-------------------------------------
0 - output([t3.c1], [t3.c2], [t3.c3], [t3.c4], [t3.c5], [t3.c6], [t3.c7], [t3.c8], [t3.c9], [t3.c10]), filter(nil),
access([t3.c1], [t3.c2], [t3.c3], [t3.c4], [t3.c5], [t3.c6], [t3.c7], [t3.c8], [t3.c9], [t3.c10]), partitions(p0)
explain select * from t3 where c1 = 1 and c2 = 1;
Query Plan
===================================
|ID|OPERATOR |NAME|EST. ROWS|COST|
-----------------------------------
|0 |TABLE SCAN|t3 |10 |40 |
===================================
Outputs & filters:
-------------------------------------
0 - output([t3.c1], [t3.c2], [t3.c3], [t3.c4], [t3.c5], [t3.c6], [t3.c7], [t3.c8], [t3.c9], [t3.c10]), filter(nil),
access([t3.c1], [t3.c2], [t3.c3], [t3.c4], [t3.c5], [t3.c6], [t3.c7], [t3.c8], [t3.c9], [t3.c10]), partitions(p0)
explain select * from t3 where c1 = 1 and c2 = 1 and c3 < 1;
Query Plan
===================================
|ID|OPERATOR |NAME|EST. ROWS|COST|
-----------------------------------
|0 |TABLE SCAN|t3 |1 |41 |
===================================
Outputs & filters:
-------------------------------------
0 - output([t3.c1], [t3.c2], [t3.c3], [t3.c4], [t3.c5], [t3.c6], [t3.c7], [t3.c8], [t3.c9], [t3.c10]), filter([t3.c3 < 1]),
access([t3.c1], [t3.c2], [t3.c3], [t3.c4], [t3.c5], [t3.c6], [t3.c7], [t3.c8], [t3.c9], [t3.c10]), partitions(p0)
explain select * from t3 where c1 = 1 and c2 = 1 and c3 = 1;
Query Plan
===================================
|ID|OPERATOR |NAME|EST. ROWS|COST|
-----------------------------------
|0 |TABLE SCAN|t3 |1 |41 |
===================================
Outputs & filters:
-------------------------------------
0 - output([t3.c1], [t3.c2], [t3.c3], [t3.c4], [t3.c5], [t3.c6], [t3.c7], [t3.c8], [t3.c9], [t3.c10]), filter([t3.c3 = 1]),
access([t3.c1], [t3.c2], [t3.c3], [t3.c4], [t3.c5], [t3.c6], [t3.c7], [t3.c8], [t3.c9], [t3.c10]), partitions(p0)

8320
test/mysql_test/test_suite/optimizer/r/mysql/equal_set_mysql.result Normal file
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test/mysql_test/test_suite/optimizer/r/mysql/estimate_cost.result Normal file
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create table test_table(id int primary key, name varchar(64), age int, description varchar(64), index index_1(age) local, index index_2(name) local);
insert into test_table(id, name, age, description) values (0, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (1, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (2, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (3, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (4, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (5, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (6, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (7, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (8, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (9, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (10, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (11, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (12, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (13, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (14, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (15, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (16, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (17, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (18, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (19, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (20, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (21, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (22, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (23, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (24, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (25, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (26, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (27, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (28, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (29, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (30, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (31, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (32, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (33, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (34, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (35, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (36, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (37, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (38, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (39, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (40, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (41, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (42, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (43, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (44, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (45, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (46, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (47, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (48, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (49, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (50, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (51, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (52, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (53, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (54, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (55, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (56, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (57, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (58, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (59, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (60, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (61, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (62, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (63, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (64, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (65, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (66, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (67, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (68, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (69, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (70, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (71, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (72, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (73, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (74, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (75, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (76, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (77, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (78, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (79, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (80, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (81, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (82, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (83, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (84, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (85, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (86, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (87, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (88, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (89, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (90, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (91, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (92, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (93, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (94, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (95, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (96, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (97, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (98, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (99, 'name33', 33, 'rd1');
insert into test_table(id, name, age, description) values (100, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (101, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (102, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (103, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (104, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (105, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (106, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (107, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (108, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (109, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (110, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (111, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (112, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (113, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (114, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (115, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (116, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (117, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (118, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (119, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (120, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (121, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (122, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (123, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (124, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (125, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (126, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (127, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (128, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (129, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (130, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (131, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (132, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (133, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (134, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (135, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (136, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (137, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (138, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (139, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (140, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (141, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (142, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (143, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (144, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (145, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (146, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (147, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (148, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (149, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (150, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (151, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (152, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (153, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (154, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (155, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (156, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (157, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (158, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (159, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (160, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (161, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (162, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (163, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (164, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (165, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (166, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (167, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (168, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (169, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (170, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (171, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (172, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (173, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (174, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (175, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (176, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (177, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (178, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (179, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (180, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (181, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (182, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (183, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (184, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (185, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (186, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (187, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (188, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (189, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (190, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (191, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (192, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (193, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (194, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (195, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (196, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (197, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (198, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (199, 'name44', 44, 'rd2');
insert into test_table(id, name, age, description) values (200, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (201, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (202, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (203, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (204, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (205, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (206, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (207, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (208, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (209, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (210, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (211, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (212, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (213, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (214, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (215, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (216, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (217, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (218, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (219, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (220, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (221, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (222, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (223, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (224, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (225, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (226, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (227, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (228, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (229, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (230, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (231, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (232, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (233, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (234, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (235, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (236, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (237, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (238, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (239, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (240, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (241, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (242, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (243, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (244, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (245, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (246, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (247, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (248, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (249, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (250, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (251, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (252, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (253, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (254, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (255, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (256, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (257, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (258, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (259, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (260, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (261, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (262, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (263, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (264, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (265, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (266, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (267, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (268, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (269, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (270, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (271, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (272, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (273, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (274, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (275, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (276, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (277, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (278, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (279, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (280, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (281, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (282, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (283, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (284, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (285, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (286, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (287, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (288, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (289, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (290, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (291, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (292, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (293, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (294, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (295, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (296, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (297, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (298, 'name22', 22, 'rd3');
insert into test_table(id, name, age, description) values (299, 'name22', 22, 'rd3');
drop table test_table;

550
test/mysql_test/test_suite/optimizer/r/mysql/union_sort_opt.result Normal file
View File

@ -0,0 +1,550 @@
drop database if exists union_sort_opt_db;
create database union_sort_opt_db;
use union_sort_opt_db;
create table t4(c1 int primary key, c2 int, c3 int);
insert into t4 values(10,12,3),(4,5,6),(2,13,4),(3,4,25),(7,18,9);
commit;
create index idx_t4_c2c3 on t4(c2,c3);
### 1, 基本测试 表有PK ###
select* from (select * from t4 union select * from t4) as x order by 1,2,3;
c1 c2 c3
2 13 4
3 4 25
4 5 6
7 18 9
10 12 3
select * from t4 union select * from t4;
c1 c2 c3
2 13 4
3 4 25
4 5 6
7 18 9
10 12 3
#1.2 使用索引c2c3也ok
select /*+ index(t4 idx_t4_c2c3) */ * from t4 union
select /*+ index(t4 idx_t4_c2c3) */ * from t4 order by 1,2,3;
c1 c2 c3
2 13 4
3 4 25
4 5 6
7 18 9
10 12 3
#1.3 顺序一致, 原本就支持
select /*+ index(t4 idx_t4_c2c3) */ c2,c3 from t4 union
select /*+ index(t4 idx_t4_c2c3) */ c2,c3 from t4 order by 2,1;
c2 c3
12 3
13 4
5 6
18 9
4 25
#1.4 顺序不一致, 修改后支持, 5
select /*+ index(t4 idx_t4_c2c3) */ c3,c2 from t4 union
select /*+ index(t4 idx_t4_c2c3) */ c3,c2 from t4 order by 1,2;
c3 c2
3 12
4 13
6 5
9 18
25 4
#1.5 完全一致
select /*+ index(t4 idx_t4_c2c3) */ c2,c3,c1 from t4 union
select /*+ index(t4 idx_t4_c2c3) */ c2,c3,c1 from t4 order by 1,2,3;
c2 c3 c1
4 25 3
5 6 4
12 3 10
13 4 2
18 9 7
#1.5.2 左匹配, 原本就支持
select /*+ index(t4 idx_t4_c2c3) */ c2 from t4 union
select /*+ index(t4 idx_t4_c2c3) */ c2 from t4 order by 1;
c2
4
5
12
13
18
#1.5.3 不能优化
select /*+ index(t4 idx_t4_c2c3) */ c3 from t4 union
select /*+ index(t4 idx_t4_c2c3) */ c3 from t4 order by 1;
c3
3
4
6
9
25
#1.5.4 不支持
select /*+ index(t4 idx_t4_c2c3) */ c1 from t4 union
select /*+ index(t4 idx_t4_c2c3) */ c1 from t4 order by 1;
c1
2
3
4
7
10
#1.6 两侧不匹配不能优化, 都加sort 10
select /*+ index(x idx_t4_c2c3) */ c3,c1,c2 from t4 x union
select /*+ index(y idx_t4_c2c3) */ c3,c2,c1 from t4 y order by 1,2,3;
c3 c1 c2
3 10 12
3 12 10
4 2 13
4 13 2
6 4 5
6 5 4
9 7 18
9 18 7
25 3 4
25 4 3
#1.7 两侧不匹配不能优化, 单侧加sort
select /*+ index(t4 idx_t4_c2c3) */ c2,c3,c1 from t4 union
select /*+ index(t4 idx_t4_c2c3) */ c3,c2,c1 from t4 order by 1,2,3;
c2 c3 c1
3 12 10
4 13 2
4 25 3
5 6 4
6 5 4
9 18 7
12 3 10
13 4 2
18 9 7
25 4 3
### 2, 不包含PK的简单测试, 单key索引 ###
create table t5(c int, c2 int, c3 int);
insert into t5 values(1,2,3),(2,3,4),(0,1,2),(3,4,5),(0,2,3),(2,4,5);
create index idx_t5_c2 on t5(c2);
#2.1 不能优化
select /*+ index(t5 idx_t5_c2) */ c2,c3 from t5 union
select /*+ index(t5 idx_t5_c2) */ c2,c3 from t5 order by 1,2;
c2 c3
1 2
2 3
3 4
4 5
#2.2 原本就可优化
select /*+ index(t5 idx_t5_c2) */ c2 from t5 union
select /*+ index(t5 idx_t5_c2) */ c2 from t5 order by 1;
c2
1
2
3
4
### 3, 无PK, 数据有重复, 结果正确性验证1
create table t6(c1 int, c2 int);
create index idx_t6_c1c2 on t6(c1,c2);
insert into t6 values(10,20),(10,30),(20,10),(20,5),(10,30),(40,5),(10,8),(10,20),(1,0),(0,1),(20,80),(10,5),(10,5),(30,20),(30,1),(30,5),
(10,20),(10,30),(20,10),(20,5),(10,30),(40,5),(10,8),(20,80),(10,5),(10,5),(30,20),(30,1),(1,0),(0,1),(0,0),(30,5);
#3.1 可以优化, 14 rows
select c1,c2 from t6 union select c1,c2 from t6 order by 1,2;
c1 c2
0 0
0 1
1 0
10 5
10 8
10 20
10 30
20 5
20 10
20 80
30 1
30 5
30 20
40 5
#3.2 可以优化, 14 rows
select c2,c1 from t6 union select c2,c1 from t6 order by 1,2;
c2 c1
0 0
0 1
1 0
1 30
5 10
5 20
5 30
5 40
8 10
10 20
20 10
20 30
30 10
80 20
#3.3 不能优化 23 rows
select c2,c1 from t6 union select c1,c2 from t6 order by 1,2;
c2 c1
0 0
0 1
1 0
1 30
5 10
5 20
5 30
5 40
8 10
10 5
10 8
10 20
10 30
20 5
20 10
20 30
20 80
30 1
30 5
30 10
30 20
40 5
80 20
#3.4 不能优化, 有计算列的情况, 23 rows, 14
select c2,c1 from t6 union select 0+c1,c2 from t6 order by 1,2;
c2 c1
0 0
0 1
1 0
1 30
5 10
5 20
5 30
5 40
8 10
10 5
10 8
10 20
10 30
20 5
20 10
20 30
20 80
30 1
30 5
30 10
30 20
40 5
80 20
select c1,c2,c1,c2 from t6 union select 0+c1,c2,c1,c2 from t6 order by 1,2,3,4;
c1 c2 c1 c2
0 0 0 0
0 1 0 1
1 0 1 0
10 5 10 5
10 8 10 8
10 20 10 20
10 30 10 30
20 5 20 5
20 10 20 10
20 80 20 80
30 1 30 1
30 5 30 5
30 20 30 20
40 5 40 5
#4 分区表的测试
create table t7(c1 varchar(10), c2 decimal(10,2), c3 int, c4 int) partition by hash(c4) partitions 5;
insert into t7 values('11', 1.2, 1, 7),('22', 2.3, 2, 6),('33', 3.4, 3, 2), ('44', 4.5, 4, 10), ('55', 5.6, 5, 6),
('12', 1.244, 4, 22),('22', 2.3, 3, 13),('3', 3.4, 2, 0), ('44', 4.5, 4, 1), ('56', 56, 1, 6),('44', 4.5, 4, 10);
create index idx_t7_c2c1 on t7(c2,c1,c3) local;
#4.1 可以优化, 完全匹配, 9 rows
select /*+ index(t7 idx_t7_c2c1) */ c2,c1,c3 from t7 union
select /*+ index(t7 idx_t7_c2c1) */ c2,c1,c3 from t7 where c2 < 10 order by 1,2,3;
c2 c1 c3
1.20 11 1
1.24 12 4
2.30 22 2
2.30 22 3
3.40 3 2
3.40 33 3
4.50 44 4
5.60 55 5
56.00 56 1
#4.2 可以优化, 后续有连接, 15 rows
select xx.c2,xx.c1 from
(select /*+ index(t7 idx_t7_c2c1) */ c2,c1,c3 from t7 union
select /*+ index(t7 idx_t7_c2c1) */ c2,c1,c3 from t7 where c2 < 10) xx,
t7 yy where xx.c2 = yy.c2 order by 1,2;
c2 c1
1.20 11
1.24 12
2.30 22
2.30 22
2.30 22
2.30 22
3.40 3
3.40 3
3.40 33
3.40 33
4.50 44
4.50 44
4.50 44
5.60 55
56.00 56
#4.3 可以优化, 9 rows
select /*+ index(t7 idx_t7_c2c1) */ c2,c1,c3 from t7 union
select /*+ index(t7 idx_t7_c2c1) */ c2,c1,c3 from t7 order by 1,2,3;
c2 c1 c3
1.20 11 1
1.24 12 4
2.30 22 2
2.30 22 3
3.40 3 2
3.40 33 3
4.50 44 4
5.60 55 5
56.00 56 1
select c1 from t7 union select c1 from t7 order by 1;
c1
11
12
22
3
33
44
55
56
select /*+ index(t7 idx_t7_c2c1) */ c1,c2,c3 from t7 union
select /*+ index(t7 idx_t7_c2c1) */ c1,c2,c3 from t7 order by 1,2,3;
c1 c2 c3
11 1.20 1
12 1.24 4
22 2.30 2
22 2.30 3
3 3.40 2
33 3.40 3
44 4.50 4
55 5.60 5
56 56.00 1
#4.4 索引KEY升降序的测试, 目前此功能并不支持, 实际都是ASC
drop index idx_t7_c2c1 on t7;
create index idx_t7_c3c2c1 on t7(c3 asc,c2 asc,c1 asc) local;
create table t72(c1 varchar(10), c2 decimal(10,2), c3 int);
insert into t72 values('11', 1.2, 1),('22', 2.3, 2),('33', 3.4, 3), ('44', 4.5, 4), ('55', 5.6, 5),
('12', 1.244, 4),('22', 2.3, 3),('3', 3.4, 2), ('44', 4.5, 4), ('56', 56, 1),('44', 4.5, 4);
create index idx_t72_c3c2c1 on t72(c3 asc,c2 asc,c1 asc);
#4.4.1 两个表上索引升降序一致, 不一一对应但两侧分支匹配, 可以优化, 8 rows
select /*+ index(t7 idx_t7_c3c2c1) */ c1,c2,c3 from t7 where c3 < 5 union
select /*+ index(t72 idx_t72_c3c2c1) */ c1,c2,c3 from t72 where c3 < 5 order by 1,2,3;
c1 c2 c3
11 1.20 1
12 1.24 4
22 2.30 2
22 2.30 3
3 3.40 2
33 3.40 3
44 4.50 4
56 56.00 1
#4.4.2 可以优化, 同上
select /*+ index(t7 idx_t7_c3c2c1) */ c3,c2,c1 from t7 where c3 < 5 union
select /*+ index(t72 idx_t72_c3c2c1) */ c3,c2,c1 from t72 where c3 < 5 order by 1,2,3;
c3 c2 c1
1 1.20 11
1 56.00 56
2 2.30 22
2 3.40 3
3 2.30 22
3 3.40 33
4 1.24 12
4 4.50 44
drop index idx_t72_c3c2c1 on t72;
create index idx_t72_c3c2c1 on t72(c3 asc,c2 asc,c1 asc);
#4.4.3 A,D不同, 但是实际存储一样, 所以也能优化, 8 rows
select /*+ index(t7 idx_t7_c3c2c1) */ c1,c2,c3 from t7 where c3 < 5 union
select /*+ index(t72 idx_t72_c3c2c1) */ c1,c2,c3 from t72 where c3 < 5 order by 1,2,3;
c1 c2 c3
11 1.20 1
12 1.24 4
22 2.30 2
22 2.30 3
3 3.40 2
33 3.40 3
44 4.50 4
56 56.00 1
#4.4.4 同上, 也能优化
select /*+ index(t7 idx_t7_c3c2c1) */ c3,c2,c1 from t7 where c3 < 5 union
select /*+ index(t72 idx_t72_c3c2c1) */ c3,c2,c1 from t72 where c3 < 5 order by 1,2,3;
c3 c2 c1
1 1.20 11
1 56.00 56
2 2.30 22
2 3.40 3
3 2.30 22
3 3.40 33
4 1.24 12
4 4.50 44
#5 结果正确性测试2
create table test1(c1 int, c2 int);
create table test2(d1 int, d2 int);
insert into test1 values(1,1),(1,2),(2,1),(2,2),(2,0),(1,3),(1,0),(3,0),(3,2),(3,1),(2,1);
insert into test2 values(1,1),(1,2),(2,1),(2,2),(2,0),(1,3),(1,0),(3,0),(3,2),(3,1),(2,1);
commit;
create index idx_test1_c1c2 on test1(c1 asc, c2 asc);
create index idx_test2_d1d2 on test2(d1 asc, d2 asc);
#5.1 最后加了排序, which can't be optimized...
select c2, c1 from test1 union select d2,d1 from test2 order by c2,c1;
c2 c1
0 1
0 2
0 3
1 1
1 2
1 3
2 1
2 2
2 3
3 1
#5.2 最后的排序可以被优化
select c2, c1 from test1 union select d2,d1 from test2 order by c1,c2;
c2 c1
0 1
1 1
2 1
3 1
0 2
1 2
2 2
0 3
1 3
2 3
#5.3 最后的排序由于是逆序不能被优化掉
select c2, c1 from test1 union select d2,d1 from test2 order by c1 desc,c2 desc;
c2 c1
2 3
1 3
0 3
2 2
1 2
0 2
3 1
2 1
1 1
0 1
#5.4 整数的查询项, 6 rows, 10, 4 rows
select 1, c1 from test1 union select 2,d1 from test2 order by 1,2;
1 c1
1 1
1 2
1 3
2 1
2 2
2 3
select 1, c2 from test1 union select d1,d2 from test2 order by 1,2;
1 c2
1 0
1 1
1 2
1 3
2 0
2 1
2 2
3 0
3 1
3 2
select mod(c1,2),mod(c2,2) from test1 union select mod(d1,2),mod(d2,2) from test2 order by 1,2;
mod(c1,2) mod(c2,2)
0 0
0 1
1 0
1 1
#6 from mysqltest union1, simply recreate
create table x1(c1 int, c2 char(10), c3 int);
create table x2(d1 int, d2 char(10), d3 int, index ix2(d2, d3));
insert into x1 values(1,'xx2',3),(2,'xxx3',4),(3,'aaa4',5);
insert into x2 values(11,'xx2',3),(2,'xx3',4),(3,'aaa4',5);
select c2, c3 from x1 union select /*+ index(x2 ix2) */ d2, d3 from x2 order by 1,2;
c2 c3
aaa4 5
xx2 3
xx3 4
xxx3 4
select c3, c2 from x1 union select /*+ index(x2 ix2) */ d3, d2 from x2 order by 1,2;
c3 c2
3 xx2
4 xx3
4 xxx3
5 aaa4
CREATE TABLE ts1 (c1 VARCHAR(10) NOT NULL, c2 INT NOT NULL);
CREATE TABLE ts2 (c1 VARCHAR(10) NOT NULL, c2 INT NOT NULL);
INSERT INTO ts1 (c1, c2) VALUES ('t1a', 1), ('t1a', 2), ('t1a', 3), ('t1b', 2), ('t1b', 1);
INSERT INTO ts2 (c1, c2) VALUES ('t2a', 1), ('t2a', 2), ('t2a', 3), ('t2b', 2), ('t2b', 1);
SELECT c1, c2 FROM (
SELECT c1, c2 FROM ts1
UNION
(SELECT c1, c2 FROM ts2 ORDER BY c2 DESC, c1 LIMIT 1)
) AS res order by 1,2;
c1 c2
t1a 1
t1a 2
t1a 3
t1b 1
t1b 2
t2a 3
DROP TABLE IF EXISTS T1, T2, T3;
CREATE TABLE T1 (PK INT PRIMARY KEY, C1 INT, C2 INT);
CREATE TABLE T2 (PK INT PRIMARY KEY, C1 INT, C2 INT);
CREATE TABLE T3 (PK INT PRIMARY KEY, C1 INT, C2 INT);
SELECT C1, C2, PK FROM T1 ORDER BY PK DESC LIMIT 1 UNION (SELECT C1, C2, PK FROM T2 UNION SELECT C1, C2 ,PK FROM T3);
C1 C2 PK
5 4 2
1 1 1
1 1 2
CREATE TABLE table2_bigint (
col_decimal_20_0_signed decimal(20,0) signed,
col_decimal_20_0_unsigned decimal(20,0) unsigned,
col_char_20 char(20),
col_decimal_20_0 decimal(20,0),
pk bigint,
col_bigint bigint,
col_timestamp_6 timestamp(6) NULL DEFAULT NULL,
col_bigint_unsigned bigint unsigned,
col_bigint_signed bigint signed,
primary key (pk));
CREATE TABLE table100_bigint (
col_bigint_unsigned bigint unsigned,
col_decimal_20_0_unsigned decimal(20,0) unsigned,
col_bigint_signed bigint signed,
col_bigint bigint,
pk bigint,
col_decimal_20_0_signed decimal(20,0) signed,
col_timestamp_6 timestamp(6) NULL DEFAULT NULL,
col_char_20 char(20),
col_decimal_20_0 decimal(20,0),
/*Indices*/
primary key (pk)) ;
SELECT col_bigint, col_bigint_signed, col_bigint_unsigned, col_char_20, col_decimal_20_0, col_decimal_20_0_signed, col_decimal_20_0_unsigned, col_timestamp_6, pk
FROM
(
(SELECT col_bigint, col_bigint_signed, col_bigint_unsigned, col_char_20, col_decimal_20_0, col_decimal_20_0_signed, col_decimal_20_0_unsigned, col_timestamp_6, pk
FROM table2_bigint
WHERE col_decimal_20_0_unsigned <> 99999
ORDER BY pk DESC , 6 DESC , pk
LIMIT 1,
5)
UNION DISTINCT SELECT col_bigint, col_bigint_signed, col_bigint_unsigned, col_char_20, col_decimal_20_0, col_decimal_20_0_signed, col_decimal_20_0_unsigned, col_timestamp_6, pk
FROM (
(SELECT col_bigint, col_bigint_signed, col_bigint_unsigned, col_char_20, col_decimal_20_0, col_decimal_20_0_signed, col_decimal_20_0_unsigned, col_timestamp_6, pk
FROM table100_bigint
WHERE col_decimal_20_0_signed = ROUND(SIGN(col_decimal_20_0))
ORDER BY col_bigint_signed , 6 , col_decimal_20_0 , pk DESC LIMIT 7)
UNION DISTINCT
(SELECT col_bigint, col_bigint_signed, col_bigint_unsigned, col_char_20, col_decimal_20_0, col_decimal_20_0_signed, col_decimal_20_0_unsigned, col_timestamp_6, pk
FROM table2_bigint
WHERE SUBSTR('g', 1, LEAST(58, 20)) <> INSERT('lgeswk', 99, 8, TRIM(SUBSTRING(CONVERT(TRIM(SUBSTR(TRIM(SUBSTR(SUBSTRING('nlge', 1, LEAST(58, 20)), 1, 2)
FROM SUBSTRING('', 1, LEAST(58, 20))), 1, LEAST(58, 20))), CHAR(50)), 1, LEAST(58, 20))))
ORDER BY 3 ,
col_bigint_unsigned ,
pk DESC)) TUT
ORDER BY col_bigint,
col_bigint_signed,
col_bigint_unsigned,
col_char_20,
col_decimal_20_0,
col_decimal_20_0_signed,
col_decimal_20_0_unsigned,
col_timestamp_6,
pk) TUT WHERE pk in (9727744 ,7826688 ,1657856 , 55039 , 50631)
ORDER BY col_bigint, col_bigint_signed, col_bigint_unsigned, col_char_20, col_decimal_20_0, col_decimal_20_0_signed, col_decimal_20_0_unsigned, col_timestamp_6, pk;
col_bigint col_bigint_signed col_bigint_unsigned col_char_20 col_decimal_20_0 col_decimal_20_0_signed col_decimal_20_0_unsigned col_timestamp_6 pk
NULL NULL NULL NULL NULL NULL 0 NULL 7826688
NULL NULL NULL NULL NULL NULL 1 NULL 1657856
NULL NULL NULL NULL NULL NULL 11753728 NULL 9727744
NULL NULL NULL 0 NULL NULL 999999999 NULL 50631
NULL NULL NULL nf NULL NULL 22222222 NULL 55039
drop database union_sort_opt_db;