| set hive.mapred.mode=nonstrict; |
| set hive.support.concurrency=true; |
| set hive.txn.manager=org.apache.hadoop.hive.ql.lockmgr.DbTxnManager; |
| set hive.vectorized.execution.enabled=true; |
| set hive.explain.user=true; |
| set hive.metastore.fastpath=false; |
| set hive.fetch.task.conversion=none; |
| |
| drop table if exists char_part_tbl1 ; |
| drop table if exists char_part_tbl2; |
| |
| create table studenttab(name string, age int, gpa double) clustered by (age) into 2 buckets stored as orc tblproperties('transactional'='true'); |
| insert into table studenttab values ('calvin garcia',56,2.50), ('oscar miller',66,3.00), ('(yuri xylophone',30,2.74),('alice underhill',46,3.50); |
| |
| create table char_tbl1(name string, age int) partitioned by(gpa char(50)) stored as orc; |
| create table char_tbl2(name string, age int) partitioned by(gpa char(5)) stored as orc; |
| |
| insert into table char_tbl1 partition(gpa='3.5') select name, age from studenttab where gpa = 3.5; |
| insert into table char_tbl1 partition(gpa='2.5') select name, age from studenttab where gpa = 2.5; |
| insert into table char_tbl2 partition(gpa='3.5') select name, age from studenttab where gpa = 3.5; |
| insert into table char_tbl2 partition(gpa='3') select name, age from studenttab where gpa = 3; |
| |
| show partitions char_tbl1; |
| show partitions char_tbl2; |
| |
| explain vectorization select c1.name, c1.age, c1.gpa, c2.name, c2.age, c2.gpa from char_tbl1 c1 join char_tbl2 c2 on (c1.gpa = c2.gpa); |
| select c1.name, c1.age, c1.gpa, c2.name, c2.age, c2.gpa from char_tbl1 c1 join char_tbl2 c2 on (c1.gpa = c2.gpa); |
| |
| set hive.vectorized.execution.enabled=false; |
| select c1.name, c1.age, c1.gpa, c2.name, c2.age, c2.gpa from char_tbl1 c1 join char_tbl2 c2 on (c1.gpa = c2.gpa); |
