| SET hive.vectorized.execution.enabled=false; |
| set hive.strict.checks.bucketing=false; |
| |
| set hive.mapred.mode=nonstrict; |
| CREATE TABLE srcbucket_mapjoin_n1(key int, value string) CLUSTERED BY (key) INTO 2 BUCKETS STORED AS TEXTFILE; |
| |
| CREATE TABLE srcbucket_mapjoin_part_n1 (key int, value string) partitioned by (ds string) CLUSTERED BY (key) INTO 4 BUCKETS STORED AS TEXTFILE; |
| |
| CREATE TABLE srcbucket_mapjoin_part_2_n1 (key int, value string) partitioned by (ds string) CLUSTERED BY (key) INTO 2 BUCKETS STORED AS TEXTFILE; |
| |
| set hive.optimize.bucketmapjoin = true; |
| |
| -- empty partitions (HIVE-3205) |
| explain extended |
| select /*+mapjoin(b)*/ a.key, a.value, b.value |
| from srcbucket_mapjoin_part_n1 a join srcbucket_mapjoin_part_2_n1 b |
| on a.key=b.key where b.ds="2008-04-08"; |
| |
| select /*+mapjoin(b)*/ a.key, a.value, b.value |
| from srcbucket_mapjoin_part_n1 a join srcbucket_mapjoin_part_2_n1 b |
| on a.key=b.key where b.ds="2008-04-08"; |
| |
| explain extended |
| select /*+mapjoin(a)*/ a.key, a.value, b.value |
| from srcbucket_mapjoin_part_n1 a join srcbucket_mapjoin_part_2_n1 b |
| on a.key=b.key where b.ds="2008-04-08"; |
| |
| select /*+mapjoin(a)*/ a.key, a.value, b.value |
| from srcbucket_mapjoin_part_n1 a join srcbucket_mapjoin_part_2_n1 b |
| on a.key=b.key where b.ds="2008-04-08"; |
| |
| load data local inpath '../../data/files/bmj/000000_0' INTO TABLE srcbucket_mapjoin_n1; |
| load data local inpath '../../data/files/bmj/000001_0' INTO TABLE srcbucket_mapjoin_n1; |
| |
| load data local inpath '../../data/files/bmj/000000_0' INTO TABLE srcbucket_mapjoin_part_n1 partition(ds='2008-04-08'); |
| load data local inpath '../../data/files/bmj/000001_0' INTO TABLE srcbucket_mapjoin_part_n1 partition(ds='2008-04-08'); |
| load data local inpath '../../data/files/bmj/000002_0' INTO TABLE srcbucket_mapjoin_part_n1 partition(ds='2008-04-08'); |
| load data local inpath '../../data/files/bmj/000003_0' INTO TABLE srcbucket_mapjoin_part_n1 partition(ds='2008-04-08'); |
| |
| load data local inpath '../../data/files/bmj2/000000_0' INTO TABLE srcbucket_mapjoin_part_2_n1 partition(ds='2008-04-08'); |
| load data local inpath '../../data/files/bmj2/000001_0' INTO TABLE srcbucket_mapjoin_part_2_n1 partition(ds='2008-04-08'); |
| |
| create table bucketmapjoin_hash_result_1_n0 (key bigint , value1 bigint, value2 bigint); |
| create table bucketmapjoin_hash_result_2_n0 (key bigint , value1 bigint, value2 bigint); |
| |
| set hive.optimize.bucketmapjoin = true; |
| create table bucketmapjoin_tmp_result_n0 (key string , value1 string, value2 string); |
| |
| explain extended |
| insert overwrite table bucketmapjoin_tmp_result_n0 |
| select /*+mapjoin(b)*/ a.key, a.value, b.value |
| from srcbucket_mapjoin_n1 a join srcbucket_mapjoin_part_n1 b |
| on a.key=b.key where b.ds="2008-04-08"; |
| |
| insert overwrite table bucketmapjoin_tmp_result_n0 |
| select /*+mapjoin(b)*/ a.key, a.value, b.value |
| from srcbucket_mapjoin_n1 a join srcbucket_mapjoin_part_n1 b |
| on a.key=b.key where b.ds="2008-04-08"; |
| |
| select count(1) from bucketmapjoin_tmp_result_n0; |
| |
| insert overwrite table bucketmapjoin_hash_result_1_n0 |
| select sum(hash(key)), sum(hash(value1)), sum(hash(value2)) from bucketmapjoin_tmp_result_n0; |
| |
| set hive.optimize.bucketmapjoin = false; |
| insert overwrite table bucketmapjoin_tmp_result_n0 |
| select /*+mapjoin(b)*/ a.key, a.value, b.value |
| from srcbucket_mapjoin_n1 a join srcbucket_mapjoin_part_n1 b |
| on a.key=b.key where b.ds="2008-04-08"; |
| |
| select count(1) from bucketmapjoin_tmp_result_n0; |
| insert overwrite table bucketmapjoin_hash_result_2_n0 |
| select sum(hash(key)), sum(hash(value1)), sum(hash(value2)) from bucketmapjoin_tmp_result_n0; |
| |
| |
| select a.key-b.key, a.value1-b.value1, a.value2-b.value2 |
| from bucketmapjoin_hash_result_1_n0 a left outer join bucketmapjoin_hash_result_2_n0 b |
| on a.key = b.key; |
| |
| |
| set hive.optimize.bucketmapjoin = true; |
| explain extended |
| insert overwrite table bucketmapjoin_tmp_result_n0 |
| select /*+mapjoin(a)*/ a.key, a.value, b.value |
| from srcbucket_mapjoin_n1 a join srcbucket_mapjoin_part_n1 b |
| on a.key=b.key where b.ds="2008-04-08"; |
| |
| insert overwrite table bucketmapjoin_tmp_result_n0 |
| select /*+mapjoin(a)*/ a.key, a.value, b.value |
| from srcbucket_mapjoin_n1 a join srcbucket_mapjoin_part_n1 b |
| on a.key=b.key where b.ds="2008-04-08"; |
| |
| select count(1) from bucketmapjoin_tmp_result_n0; |
| |
| |
| insert overwrite table bucketmapjoin_hash_result_1_n0 |
| select sum(hash(key)), sum(hash(value1)), sum(hash(value2)) from bucketmapjoin_tmp_result_n0; |
| |
| set hive.optimize.bucketmapjoin = false; |
| insert overwrite table bucketmapjoin_tmp_result_n0 |
| select /*+mapjoin(a)*/ a.key, a.value, b.value |
| from srcbucket_mapjoin_n1 a join srcbucket_mapjoin_part_n1 b |
| on a.key=b.key where b.ds="2008-04-08"; |
| |
| select count(1) from bucketmapjoin_tmp_result_n0; |
| insert overwrite table bucketmapjoin_hash_result_2_n0 |
| select sum(hash(key)), sum(hash(value1)), sum(hash(value2)) from bucketmapjoin_tmp_result_n0; |
| |
| select a.key-b.key, a.value1-b.value1, a.value2-b.value2 |
| from bucketmapjoin_hash_result_1_n0 a left outer join bucketmapjoin_hash_result_2_n0 b |
| on a.key = b.key; |