--disable_query_log
set @@session.explicit_defaults_for_timestamp=off;
--enable_query_log

#owner: linlin.xll
#owner group: sql2
#description:
#tags: join,optimizer 

--disable_warnings
drop database if exists yy;
drop table if exists t1;
drop table if exists t2;
drop table if exists t4;
drop table if exists t5;
drop table if exists t6;
drop table if exists t11;
drop table if exists t12;
drop table if exists t13;
drop table if exists t15;
--enable_warnings

create database yy;
use yy;
create table t1(c1 int(11) , c2 int(11) , c3 int(11), primary key (c2, c3)) partition by range columns(c2, c3) (partition p0 values less than (1,1), partition p1 values less than (100,100));
create table t2(c1 int(11) not null, c2 int(11) not null, c3 int(11) not null, primary key (c1, c2, c3)) partition by hash(c1) partitions 2;
create table t11(c1 int primary key, c2 int) partition by hash (c1) partitions 5;
create table t12(c1 int primary key, c2 int, c3 varchar(32)) partition by hash (c1) partitions 3;
create table t13(c1 int primary key, c2 int, c3 varchar(32)) partition by hash (c1) partitions 2;
create index idx_t11_c2 on t11(c2) LOCAL;
create table t15(c1 int, c2 int, c3 int, primary key(c2,c3)) partition by key(c2, c3) partitions 3;
create index idx_t15_c2 on t15(c2) LOCAL;
create index idx_t15_c3 on t15(c3) LOCAL;


##this will not be repart so far, because range columns(c2,c3) will be allowed later
explain  select /*+use_nl(t1 t2)*/ * from t1 left join t2 on t1.c2= t2.c2 and t1.c3= t2.c3;

drop table t1;
create table t1 (c1 int(11) , c2 int(11) , c3 int(11), primary key (c2, c3)) partition by key(c2) partitions 2;
##this will not be repart so far, key partition type is not allowed so far will be allowed later
explain  select /*+use_nl(t1 t2)*/ * from t1 left join t2 on t1.c2= t2.c2 and t1.c3= t2.c3;

drop table t1;
create table t1 (c1 int(11) , c2 int(11) , c3 int(11), c4 date, primary key (c2, c3)) partition by range columns(c2)
  (partition p0 values less than (1), partition p1 values less than (100));


#####below will be not repart
## not nest loop
explain  select * from t1 join t2 on t1.c2= t2.c2;
##partition key is not covered by join key
explain  select /*+use_nl(t1 t2)*/ * from t1 join t2 on t1.c3= t2.c3;
explain  select /*+use_bnl(t1 t2)*/ * from t1 join t2 on t1.c3= t2.c3;


####below will be repart
#right repart both sharding
--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select /*+use_nl(t1 t2)*/ * from t1 left join t2 on t1.c2= t2.c2;
#left repart both sharding
--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select /*+use_nl(t1 t2)*/ * from t1 left join t2 on t1.c1= t2.c1;
--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select /*+use_nl(t1 t2)*/ * from t1 left join t2 on t1.c2= t2.c2 and t1.c3= t2.c3;
--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select /*+use_nl(t1 t2)*/ * from t1 left join t2 on t1.c1= t2.c1 and t1.c3= t2.c3;
#right repart ,left is sharding
#left repart ,right is  sharding

--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select /*+use_nl(t1 t2)*/ * from t1 join t2 on t1.c2= t2.c2;
--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select /*+use_nl(t1 t2)*/ * from t1 join t2 on t1.c1= t2.c1;
--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select /*+use_nl(t1 t2)*/ * from t1 join t2 on t1.c2= t2.c2 and t1.c3= t2.c3;


--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select c1 from t11 where c2 not in (select c2 from t11);
--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select c1 from t12 where c1 not in (select c1 from t11 where c2 not in (select c2 from t11));
--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select * from (select /*+use_nl(t11 t12)*/ t12.c1 from t11,t12 where t11.c1=t12.c1 limit 1) v order by v.c1;
--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select count(c1) from t11 group by c1 having c1 in (select t12.c1 from t12 where t11.c1=t12.c2);
--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select * from t11 where c1 in (select c1 from t12 where (1 = 0 or c1 > 5));

#part key is generated column,which will not be true, part key need to be primary key, but primary key is not supported as generate columns so far

#####part_level_two
create table t4 (c1 int, c2 int, c3 date, c4 int, primary key(c1,c2,c3)) partition by hash(c1) subpartition by range columns(c3)
subpartition template( subpartition p_2016_11_02_00 values less than ('2016-11-02'),
subpartition p_2016_11_03_00 values less than ('2016-11-03'),
subpartition p_max_value values less than (MAXVALUE));

create table t5(c1 int, c2 int, c3 date, c4 int, primary key(c1,c2,c3)) partition by hash(c1) subpartition by range columns(c3)
subpartition template( subpartition p_2016_11_02_00 values less than ('2016-11-02'),
subpartition p_2016_11_03_00 values less than ('2016-11-03'),
subpartition p_max_value values less than (MAXVALUE));

create table t6(c1 int, c2 int, c3 date, c4 int, primary key(c1,c2,c3)) partition by hash(c1) subpartition by range columns(c3)
subpartition template( subpartition p_2016_11_02_00 values less than ('2016-11-02'),
subpartition p_2016_11_03_00 values less than ('2016-11-03'),
subpartition p_max_value values less than (MAXVALUE));

####below will be not repart
explain  select /*+use_nl(t4 t5)*/ * from t4 left join t5 on t4.c2= t5.c2;
explain  select /*+use_nl(t4 t5)*/ * from t4 left join t5 on t4.c1= t5.c1;
explain  select /*+use_nl(t4 t5)*/ * from t4 join t5 on t4.c2= t5.c2 and t4.c3= t5.c3;
explain  select * from t4 left join t5 on t4.c1= t5.c1 and t4.c3 = t5.c3;


#right repart both sharding
--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select /*+use_nl(t4 t5)*/ * from t4 left join t5 on t4.c1= t5.c2 and t4.c3 = t5.c3;
--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select /*+use_nl(t4 t1)*/ * from t4 left join t1 on t4.c1= t1.c1 and t4.c3 = t1.c4;

--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select /*+use_nl(t5 t4)*/ * from t5 left join t4 on t4.c1= t5.c2 and t4.c3 = t5.c3;
--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select /*+use_nl(t1 t4)*/ * from t1 left join t4 on t4.c1= t1.c1 and t4.c3 = t1.c4;

#left repart both sharding  left repart is prior to right  repart， when both is available
--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select /*+use_nl(t4 t5)*/ * from t4 left join t5 on t4.c1= t5.c1 and t4.c3 = t5.c3;

#subplan and join
--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select  * from (select c1, c3, sum(c2) as yyy, max(c4) from t4 group by c3 order by yyy limit 1) as a join t5 as b on a.c1 = b.c1 and a.c3 = b.c3 join t6 as c on b.c1=c.c1 and b.c3 = c.c3;
--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select  * from t5 as a join (select c1, c3, sum(c2) as yyy, max(c4) from t4 group by c3 order by yyy limit 1) as b on a.c1 = b.c1 and a.c3 = b.c3 join t6 as c on b.c1=c.c1 and b.c3 = c.c3;
--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select  * from t5 as a join t6 as b on a.c1 = b.c1 and a.c3 = b.c3 join (select c1, c3, sum(c2) as yyy, max(c4) from t4 group by c3 order by yyy limit 1) as c on b.c1=c.c1 and b.c3 = c.c3;

--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select /*+use_nl(a b) use_nl(b c)*/ * from (select c1, c3, sum(c2) as yyy, max(c4) from t4 group by c3 order by yyy limit 1) as a join t5 as b on a.c1 = b.c1 and a.c3 = b.c3 join t6 as c on b.c1=c.c1 and b.c3 = c.c3;
--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select /*+use_nl(a b) use_nl(b c)*/ * from t5 as a join (select c1, c3, sum(c2) as yyy, max(c4) from t4 group by c3 order by yyy limit 1) as b on a.c1 = b.c1 and a.c3 = b.c3 join t6 as c on b.c1=c.c1 and b.c3 = c.c3;
--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select /*+use_nl(a b) use_nl(b c)*/ * from t5 as a join t6 as b on a.c1 = b.c1 and a.c3 = b.c3 join (select c1, c3, sum(c2) as yyy, max(c4) from t4 group by c3 order by yyy limit 1) as c on b.c1=c.c1 and b.c3 = c.c3;

--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select /*+use_nl(a b) use_nl(b c)*/ * from (select c1, c3, sum(c2) as yyy, max(c4) from t4 group by c3 order by yyy limit 2) as a left join t5 as b on a.c1 = b.c1 and a.c3 = b.c3  left join t6 as c on b.c1=c.c1 and b.c3 = c.c3;
--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select /*+use_nl(a b) use_nl(b c)*/ * from t5 as a left join (select c1, c3, sum(c2) as yyy, max(c4) from t4 group by c3 order by yyy limit 1) as b on a.c1 = b.c1 and a.c3 = b.c3 left join t6 as c on b.c1=c.c1 and b.c3 = c.c3;
--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select /*+use_nl(a b) use_nl(b c)*/ * from t5 as a left join t6 as b on a.c1 = b.c1 and a.c3 = b.c3 left join (select c1, c3, sum(c2) as yyy, max(c4) from t4 group by c3 order by yyy limit 1) as c on b.c1=c.c1 and b.c3 = c.c3;
--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select /*+use_nl(c)*/ * from t5 as a left join t6 as b on a.c1 = b.c1 and a.c3 = b.c3 left join t4 as c on b.c1=c.c1 and b.c3 = c.c3;
--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select /*+use_nl(c)*/ * from t5 as a left join t6 as b on a.c1 = b.c1 and a.c3 = b.c3 left join t4 as c on b.c1=c.c1 and b.c3 = c.c3 limit 100;


###suplan filter
##bnl should not be repart
--replace_regex /repart_table_id_:[0-9]*/repart_table_id_:TABLE_ID/
explain  select /*+use_bnl(a b)*/ * from (select c1, c3, sum(c2) as yyy, max(c4) from t4 group by c3 order by yyy limit 2) as a left join t5 as b on a.c1 = b.c1 and a.c3 = b.c3 ;
drop database yy;