| -- SORT_QUERY_RESULTS |
| |
| set hive.support.concurrency=true; |
| set hive.txn.manager=org.apache.hadoop.hive.ql.lockmgr.DbTxnManager; |
| set hive.strict.checks.cartesian.product=false; |
| set hive.stats.fetch.column.stats=true; |
| set hive.materializedview.rewriting=true; |
| |
| create table emps_n9 ( |
| empid int, |
| deptno int, |
| name varchar(256), |
| salary float, |
| commission int) |
| stored as orc TBLPROPERTIES ('transactional'='true'); |
| insert into emps_n9 values (100, 10, 'Bill', 10000, 1000), (200, 20, 'Eric', 8000, 500), |
| (150, 10, 'Sebastian', 7000, null), (120, 10, 'Theodore', 10000, 250); |
| |
| create table depts_n7 ( |
| deptno int, |
| name varchar(256), |
| locationid int) |
| stored as orc TBLPROPERTIES ('transactional'='true'); |
| insert into depts_n7 values (10, 'Sales', 10), (30, 'Marketing', null), (20, 'HR', 20); |
| |
| create table dependents_n5 ( |
| empid int, |
| name varchar(256)) |
| stored as orc TBLPROPERTIES ('transactional'='true'); |
| insert into dependents_n5 values (10, 'Michael'), (20, 'Jane'); |
| |
| create table locations_n5 ( |
| locationid int, |
| name varchar(256)) |
| stored as orc TBLPROPERTIES ('transactional'='true'); |
| insert into locations_n5 values (10, 'San Francisco'), (20, 'San Diego'); |
| |
| alter table emps_n9 add constraint pk1 primary key (empid) disable novalidate rely; |
| alter table depts_n7 add constraint pk2 primary key (deptno) disable novalidate rely; |
| alter table dependents_n5 add constraint pk3 primary key (empid) disable novalidate rely; |
| alter table locations_n5 add constraint pk4 primary key (locationid) disable novalidate rely; |
| |
| alter table emps_n9 add constraint fk1 foreign key (deptno) references depts_n7(deptno) disable novalidate rely; |
| alter table depts_n7 add constraint fk2 foreign key (locationid) references locations_n5(locationid) disable novalidate rely; |
| |
| -- EXAMPLE 34 |
| create materialized view mv1_n5 as |
| select empid deptno from emps_n9 |
| join depts_n7 using (deptno); |
| |
| explain |
| select empid deptno from emps_n9 |
| join depts_n7 using (deptno) where empid = 1; |
| |
| select empid deptno from emps_n9 |
| join depts_n7 using (deptno) where empid = 1; |
| |
| drop materialized view mv1_n5; |
| |
| -- EXAMPLE 35 |
| create materialized view mv1_n5 as |
| select cast(empid as BIGINT) from emps_n9 |
| join depts_n7 using (deptno); |
| |
| explain |
| select empid deptno from emps_n9 |
| join depts_n7 using (deptno) where empid > 1; |
| |
| select empid deptno from emps_n9 |
| join depts_n7 using (deptno) where empid > 1; |
| |
| drop materialized view mv1_n5; |
| |
| -- EXAMPLE 36 |
| create materialized view mv1_n5 as |
| select cast(empid as BIGINT) from emps_n9 |
| join depts_n7 using (deptno); |
| |
| explain |
| select empid deptno from emps_n9 |
| join depts_n7 using (deptno) where empid = 1; |
| |
| select empid deptno from emps_n9 |
| join depts_n7 using (deptno) where empid = 1; |
| |
| drop materialized view mv1_n5; |
| |
| -- EXAMPLE 38 |
| create materialized view mv1_n5 as |
| select depts_n7.name |
| from emps_n9 |
| join depts_n7 on (emps_n9.deptno = depts_n7.deptno); |
| |
| explain |
| select dependents_n5.empid |
| from depts_n7 |
| join dependents_n5 on (depts_n7.name = dependents_n5.name) |
| join emps_n9 on (emps_n9.deptno = depts_n7.deptno); |
| |
| select dependents_n5.empid |
| from depts_n7 |
| join dependents_n5 on (depts_n7.name = dependents_n5.name) |
| join emps_n9 on (emps_n9.deptno = depts_n7.deptno); |
| |
| drop materialized view mv1_n5; |
| |