Spracherkennung für: .test vermutete Sprache: SQL {SQL[391] PVS[144] VDM[138]} [Methode: maximale Elemente, drei Dimensionen]
--source include/have_partition.inc
--source include/have_sequence.inc
create table ten(a int);
insert into ten values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table one_k(a int);
insert into one_k select A.a + B.a* 10 + C.a * 100 from ten A, ten B, ten C;
create table t10 (a int, b int, c int, key(a,b));
insert into t10 select a,a,a from one_k;
select * from t10 force index(a) where a between 10 and 20 and b+1 <3333 order by a desc, b desc;
--disable_ps_protocol
explain select * from t10 force index(a) where a between 10 and 20 and b+1 <3333 order by a desc, b desc;
flush status;
select * from t10 force index(a) where a between 10 and 20 and b+1 <3333 order by a desc, b desc;
SELECT * FROM information_schema.SESSION_STATUS WHERE VARIABLE_NAME LIKE '%icp%';
--enable_ps_protocol
select * from t10 force index(a) where a between 10 and 20 and b+1 <3333 order by a asc, b asc;
--disable_ps_protocol
explain select * from t10 force index(a) where a between 10 and 20 and b+1 <3333 order by a asc, b asc;
flush status;
select * from t10 force index(a) where a between 10 and 20 and b+1 <3333 order by a asc, b asc;
SELECT * FROM information_schema.SESSION_STATUS WHERE VARIABLE_NAME LIKE '%icp%';
--enable_ps_protocol
select * from t10 force index(a) where a=10 and b+1 <3333 order by a desc, b desc;
--disable_ps_protocol
explain select * from t10 force index(a) where a=10 and b+1 <3333 order by a desc, b desc;
flush status;
select * from t10 force index(a) where a=10 and b+1 <3333 order by a desc, b desc;
SELECT * FROM information_schema.SESSION_STATUS WHERE VARIABLE_NAME LIKE '%icp%';
--enable_ps_protocol
select * from t10 force index(a) where a=10 and b+1 <3333 order by a asc, b asc;
--disable_ps_protocol
explain select * from t10 force index(a) where a=10 and b+1 <3333 order by a asc, b asc;
flush status;
select * from t10 force index(a) where a=10 and b+1 <3333 order by a asc, b asc;
SELECT * FROM information_schema.SESSION_STATUS WHERE VARIABLE_NAME LIKE '%icp%';
--enable_ps_protocol
select * from t10 force index(a) where a=10 and b+1 <3333 order by a asc, b desc;
--disable_ps_protocol
explain select * from t10 force index(a) where a=10 and b+1 <3333 order by a asc, b desc;
flush status;
select * from t10 force index(a) where a=10 and b+1 <3333 order by a asc, b desc;
SELECT * FROM information_schema.SESSION_STATUS WHERE VARIABLE_NAME LIKE '%icp%';
--enable_ps_protocol
select * from t10 force index(a) where a=10 and b+1 <3333 order by a desc, b asc;
--disable_ps_protocol
explain select * from t10 force index(a) where a=10 and b+1 <3333 order by a desc, b asc;
flush status;
select * from t10 force index(a) where a=10 and b+1 <3333 order by a desc, b asc;
SELECT * FROM information_schema.SESSION_STATUS WHERE VARIABLE_NAME LIKE '%icp%';
--enable_ps_protocol
create table t1 (a int, b int, c int, key(a,b));
insert into t1 (a, b, c) values (1,10,100),(2,20,200),(3,30,300),(4,40,400),(5,50,500),(6,60,600),(7,70,700),(8,80,800),(9,90,900),(10,100,1000);
select * from t1 where a >= 3 and a <= 3 order by a desc, b desc;
--disable_ps_protocol
explain select * from t1 where a >= 3 and a <= 3 order by a desc, b desc;
flush status;
select * from t1 where a >= 3 and a <= 3 order by a desc, b desc;
SELECT * FROM information_schema.SESSION_STATUS WHERE VARIABLE_NAME LIKE '%icp%';
--enable_ps_protocol
select * from t1 where a >= 3 and a <= 3 order by a asc, b asc;
--disable_ps_protocol
explain select * from t1 where a >= 3 and a <= 3 order by a asc, b asc;
flush status;
select * from t1 where a >= 3 and a <= 3 order by a asc, b asc;
SELECT * FROM information_schema.SESSION_STATUS WHERE VARIABLE_NAME LIKE '%icp%';
--enable_ps_protocol
drop table t1;
create table t1 (a int, b int, c int, key(a,b));
insert into t1 (a, b, c) values (1,10,100),(2,20,200),(3,30,300);
select * from t1 where a >= 2 and a <= 2 order by a desc, b desc;
--disable_ps_protocol
explain select * from t1 where a >= 2 and a <= 2 order by a desc, b desc;
flush status;
select * from t1 where a >= 2 and a <= 2 order by a desc, b desc;
SELECT * FROM information_schema.SESSION_STATUS WHERE VARIABLE_NAME LIKE '%icp%';
--enable_ps_protocol
select * from t1 where a >= 2 and a <= 2 order by a asc, b asc;
--disable_ps_protocol
explain select * from t1 where a >= 2 and a <= 2 order by a asc, b asc;
flush status;
select * from t1 where a >= 2 and a <= 2 order by a asc, b asc;
SELECT * FROM information_schema.SESSION_STATUS WHERE VARIABLE_NAME LIKE '%icp%';
--enable_ps_protocol
drop table ten, one_k, t10, t1;
create table t1 (
a int not null,
b int not null,
c int not null,
key (a,b)
) partition by range ((a)) (
partition p0 values less than (5),
partition p1 values less than (10),
partition p2 values less than (15),
partition p3 values less than (20)
);
insert into t1 (a,b,c) values (1,1,1),(2,2,2),(3,3,3),
(4,4,4),(5,5,5),(6,6,6),(7,7,7),(8,8,8),(9,9,9),(10,10,10),
(11,11,11),(12,12,12),(13,13,13),(14,14,14),(15,15,15),
(16,16,16),(17,17,17),(18,18,18),(19,19,19);
select * from t1 where a >= 3 and a <= 7 order by a desc;
--disable_ps_protocol
explain select * from t1 where a >= 3 and a <= 7 order by a desc;
flush status;
select * from t1 where a >= 3 and a <= 7 order by a desc;
SELECT * FROM information_schema.SESSION_STATUS WHERE VARIABLE_NAME LIKE '%icp%';
--enable_ps_protocol
select * from t1 where a >= 3 and a <= 7 order by a desc, b desc;
--disable_ps_protocol
explain select * from t1 where a >= 3 and a <= 7 order by a desc, b desc;
flush status;
select * from t1 where a >= 3 and a <= 7 order by a desc, b desc;
SELECT * FROM information_schema.SESSION_STATUS WHERE VARIABLE_NAME LIKE '%icp%';
--enable_ps_protocol
drop table t1;
create table t1 (
pk int primary key,
kp1 int, kp2 int,
col1 int,
index (kp1,kp2)
) partition by hash (pk) partitions 10;
insert into t1 select seq, seq, seq, seq from seq_1_to_1000;
select * from t1 where kp1 between 950 and 960 and kp2+1 >33333 order by kp1 asc, kp2 asc;
--disable_ps_protocol
flush status;
select * from t1 where kp1 between 950 and 960 and kp2+1 >33333 order by kp1 asc, kp2 asc;
SELECT * FROM information_schema.SESSION_STATUS WHERE VARIABLE_NAME LIKE '%icp%';
--enable_ps_protocol
select * from t1 where kp1 between 950 and 960 and kp2+1 >33333 order by kp1 desc, kp2 desc;
--disable_ps_protocol
flush status;
select * from t1 where kp1 between 950 and 960 and kp2+1 >33333 order by kp1 desc, kp2 desc;
SELECT * FROM information_schema.SESSION_STATUS WHERE VARIABLE_NAME LIKE '%icp%';
--enable_ps_protocol
drop table t1;