set hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat; set hive.enforce.bucketing = true; set hive.enforce.sorting = true; set hive.exec.reducers.max = 1; create table smb_bucket_input (key int, value string) stored as rcfile; load data local inpath '../../data/files/smb_bucket_input.rc' into table smb_bucket_input; CREATE TABLE smb_bucket4_1(key int, value string) CLUSTERED BY (key) SORTED BY (key) INTO 1 BUCKETS; CREATE TABLE smb_bucket4_2(key int, value string) CLUSTERED BY (key) SORTED BY (key) INTO 1 BUCKETS; CREATE TABLE smb_bucket4_3(key int, value string) CLUSTERED BY (key) SORTED BY (key) INTO 1 BUCKETS; insert overwrite table smb_bucket4_1 select * from smb_bucket_input where key=4 or key=2000 or key=4000; insert overwrite table smb_bucket4_2 select * from smb_bucket_input where key=484 or key=3000 or key=5000; set hive.optimize.bucketmapjoin = true; set hive.optimize.bucketmapjoin.sortedmerge = true; set hive.input.format = org.apache.hadoop.hive.ql.io.BucketizedHiveInputFormat; select /*+mapjoin(a)*/ * from smb_bucket4_1 a full outer join smb_bucket4_2 b on a.key = b.key; select /*+mapjoin(b)*/ * from smb_bucket4_1 a full outer join smb_bucket4_2 b on a.key = b.key; insert overwrite table smb_bucket4_1 select * from smb_bucket_input where key=2000 or key=4000; insert overwrite table smb_bucket4_2 select * from smb_bucket_input where key=3000 or key=5000; select /*+mapjoin(a)*/ * from smb_bucket4_1 a full outer join smb_bucket4_2 b on a.key = b.key; select /*+mapjoin(b)*/ * from smb_bucket4_1 a full outer join smb_bucket4_2 b on a.key = b.key; insert overwrite table smb_bucket4_1 select * from smb_bucket_input where key=4000; insert overwrite table smb_bucket4_2 select * from smb_bucket_input where key=5000; select /*+mapjoin(a)*/ * from smb_bucket4_1 a full outer join smb_bucket4_2 b on a.key = b.key; select /*+mapjoin(b)*/ * from smb_bucket4_1 a full outer join smb_bucket4_2 b on a.key = b.key; insert overwrite table smb_bucket4_1 select * from smb_bucket_input where key=1000 or key=4000; insert overwrite table smb_bucket4_2 select * from smb_bucket_input where key=1000 or key=5000; select /*+mapjoin(a)*/ * from smb_bucket4_1 a full outer join smb_bucket4_2 b on a.key = b.key; select /*+mapjoin(b)*/ * from smb_bucket4_1 a full outer join smb_bucket4_2 b on a.key = b.key; insert overwrite table smb_bucket4_1 select * from smb_bucket_input where key=1000 or key=4000; insert overwrite table smb_bucket4_2 select * from smb_bucket_input where key=1000 or key=5000; insert overwrite table smb_bucket4_3 select * from smb_bucket_input where key=1000 or key=5000; select /*+mapjoin(b,c)*/ * from smb_bucket4_1 a full outer join smb_bucket4_2 b on a.key = b.key full outer join smb_bucket4_3 c on a.key=c.key; insert overwrite table smb_bucket4_1 select * from smb_bucket_input where key=1000 or key=4000; insert overwrite table smb_bucket4_2 select * from smb_bucket_input where key=1000 or key=5000; insert overwrite table smb_bucket4_3 select * from smb_bucket_input where key=1000 or key=4000; select /*+mapjoin(b,c)*/ * from smb_bucket4_1 a full outer join smb_bucket4_2 b on a.key = b.key full outer join smb_bucket4_3 c on a.key=c.key; insert overwrite table smb_bucket4_1 select * from smb_bucket_input where key=4000; insert overwrite table smb_bucket4_2 select * from smb_bucket_input where key=5000; insert overwrite table smb_bucket4_3 select * from smb_bucket_input where key=4000; select /*+mapjoin(b,c)*/ * from smb_bucket4_1 a full outer join smb_bucket4_2 b on a.key = b.key full outer join smb_bucket4_3 c on a.key=c.key; insert overwrite table smb_bucket4_1 select * from smb_bucket_input where key=00000; insert overwrite table smb_bucket4_2 select * from smb_bucket_input where key=4000; insert overwrite table smb_bucket4_3 select * from smb_bucket_input where key=5000; select /*+mapjoin(b,c)*/ * from smb_bucket4_1 a full outer join smb_bucket4_2 b on a.key = b.key full outer join smb_bucket4_3 c on a.key=c.key; insert overwrite table smb_bucket4_1 select * from smb_bucket_input where key=1000; insert overwrite table smb_bucket4_2 select * from smb_bucket_input where key=4000; insert overwrite table smb_bucket4_3 select * from smb_bucket_input where key=5000; select /*+mapjoin(b,c)*/ * from smb_bucket4_1 a full outer join smb_bucket4_2 b on a.key = b.key full outer join smb_bucket4_3 c on a.key=c.key;