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MCOL-1205 Support queries with circular joins

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This patch adds support for queries with circular joins.
Currently support added for inner joins only.
This commit is contained in:
Denis Khalikov
2021-04-22 10:03:44 +03:00
parent 6dc356ed60
commit 1d5f309b8f
6 changed files with 787 additions and 41 deletions
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mysql-test/columnstore/basic/r/mcol-1205.result Normal file
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DROP DATABASE IF EXISTS mcol1205;
CREATE DATABASE mcol1205;
USE mcol1205;
/* simple circular inner join `=` operator */
create table t1 (a int, b int) engine=columnstore;
create table t2 (b int, c int) engine=columnstore;
create table t3 (a int, c int) engine=columnstore;
insert into t1 values (1, 2), (2, 3), (3, 4), (4, 5), (5, 6), (6, 7);
insert into t2 values (1, 2), (2, 3), (3, 4), (4, 5), (5, 6), (6, 7);
insert into t3 values (2, 4), (3, 5), (4, 6), (5, 10), (6, 12);
select * from t1 inner join t2 on (t1.b = t2.b) inner join t3 on (t1.a = t3.a and t2.c = t3.c);
a b b c a c
2 3 3 4 2 4
3 4 4 5 3 5
4 5 5 6 4 6
drop table t1;
drop table t2;
drop table t3;
/* simple circular inner join with `where` filter */
create table t1 (a int, b int) engine=columnstore;
create table t2 (b int, c int) engine=columnstore;
create table t3 (a int, c int) engine=columnstore;
insert into t1 values (1, 2), (2, 3), (3, 4), (4, 5), (5, 6), (6, 7);
insert into t2 values (1, 2), (2, 3), (3, 4), (4, 5), (5, 6), (6, 7);
insert into t3 values (2, 4), (3, 5), (4, 6), (5, 10), (6, 12);
select * from t1 inner join t2 on (t1.b = t2.b) inner join t3 on (t1.a = t3.a) where t2.c = t3.c;
a b b c a c
2 3 3 4 2 4
3 4 4 5 3 5
4 5 5 6 4 6
drop table t1;
drop table t2;
drop table t3;
/* circular inner join with filter */
create table t1 (a int, b int, f int) engine=columnstore;
create table t2 (b int, c int) engine=columnstore;
create table t3 (a int, c int, f int) engine=columnstore;
insert into t1 values (1, 2, 1), (2, 3, 2), (3, 4, 3), (4, 5, 4), (5, 6, 5), (6, 7, 6);
insert into t2 values (1, 2), (2, 3), (3, 4), (4, 5), (5, 6), (6, 7);
insert into t3 values (2, 4, 1), (3, 5, 2), (4, 6, 4), (5, 10, 5), (6, 12, 6);
select * from t1 inner join t2 on (t1.b = t2.b) inner join t3 on (t1.a = t3.a and t2.c = t3.c) where t1.f > t3.f;
a b f b c a c f
2 3 2 3 4 2 4 1
3 4 3 4 5 3 5 2
drop table t1;
drop table t2;
drop table t3;
/* circular `where` node inner join with filter */
create table t1 (a int, b int, f int) engine=columnstore;
create table t2 (b int, c int) engine=columnstore;
create table t3 (a int, c int, f int) engine=columnstore;
insert into t1 values (1, 2, 1), (2, 3, 2), (3, 4, 3), (4, 5, 4), (5, 6, 5), (6, 7, 6);
insert into t2 values (1, 2), (2, 3), (3, 4), (4, 5), (5, 6), (6, 7);
insert into t3 values (2, 4, 1), (3, 5, 2), (4, 6, 4), (5, 10, 5), (6, 12, 6);
select * from t1 inner join t2 on (t1.b = t2.b) inner join t3 on (t1.a = t3.a) where t2.c = t3.c and t1.f > t3.f;
a b f b c a c f
2 3 2 3 4 2 4 1
3 4 3 4 5 3 5 2
drop table t1;
drop table t2;
drop table t3;
/* circular join more than 2 join keys */
create table t1 (a int, b int, f int) engine=columnstore;
create table t2 (b int, c int) engine=columnstore;
create table t3 (a int, c int, f int) engine=columnstore;
insert into t1 values (1, 2, 1), (2, 3, 2), (3, 4, 3), (4, 5, 4), (5, 6, 5), (6, 7, 6);
insert into t2 values (1, 2), (2, 3), (3, 4), (4, 5), (5, 6), (6, 7);
insert into t3 values (2, 4, 1), (3, 5, 2), (4, 6, 4), (5, 10, 5), (6, 12, 6);
select * from t1 inner join t2 on (t1.b = t2.b) inner join t3 on (t1.a = t3.a and t2.c = t3.c and t1.f = t3.f);
a b f b c a c f
4 5 4 5 6 4 6 4
drop table t1;
drop table t2;
drop table t3;
/* circular join with 3 loops */
create table t1 (a int, b int, f int) engine=columnstore;
create table t2 (b int, c int) engine=columnstore;
create table t3 (a int, c int, f int) engine=columnstore;
create table t4 (a int, b int) engine=columnstore;
create table t5 (a int, b int) engine=columnstore;
insert into t1 values (1, 2, 1), (2, 3, 2), (3, 4, 3), (4, 5, 4), (5, 6, 5), (6, 7, 6);
insert into t2 values (1, 2), (2, 3), (3, 4), (4, 5), (5, 6), (6, 7);
insert into t3 values (2, 4, 1), (3, 5, 2), (4, 6, 4), (5, 10, 5), (6, 12, 6);
insert into t4 values (1, 2), (2, 3), (3, 4), (4, 5), (5, 6), (6, 7);
insert into t5 values (1, 2), (2, 3), (3, 4), (4, 5), (5, 6), (6, 7);
select * from t1 inner join t2 on (t1.b = t2.b) inner join t3 on (t1.a = t3.a and t2.c = t3.c) inner join t4 on (t1.a = t4.a and t2.b = t4.b) inner join t5 on (t4.a = t5.a and t3.a = t5.a);
a b f b c a c f a b a b
2 3 2 3 4 2 4 1 2 3 2 3
3 4 3 4 5 3 5 2 3 4 3 4
4 5 4 5 6 4 6 4 4 5 4 5
drop table t1;
drop table t2;
drop table t3;
drop table t4;
drop table t5;
/* circular joins for dict */
create table t1 (a varchar(255), b varchar(255)) engine=columnstore;
create table t2 (b varchar(255), c varchar(255)) engine=columnstore;
create table t3 (a varchar(255), c varchar(255)) engine=columnstore;
insert into t1 values ("1","2"), ("2","3"), ("3","4"), ("4","5"), ("5", "6"), ("6","7");
insert into t2 values ("1","2"), ("2","3"), ("3","4"), ("4","5"), ("5","6"), ("6","7");
insert into t3 values ("2","4"), ("3","5"), ("4","6"), ("5", "10"), ("6", "12");
select * from t1 inner join t2 on (t1.b = t2.b) inner join t3 on (t1.a = t3.a and t2.c = t3.c);
a b b c a c
2 3 3 4 2 4
3 4 4 5 3 5
4 5 5 6 4 6
drop table t1;
drop table t2;
drop table t3;
DROP DATABASE mcol1205;