| set hive.strict.checks.bucketing=false; |
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| create table smb_bucket_1_n1(key int, value string) CLUSTERED BY (key) SORTED BY (key) INTO 1 BUCKETS STORED AS RCFILE; |
| create table smb_bucket_2_n1(key int, value string) CLUSTERED BY (key) SORTED BY (key) INTO 1 BUCKETS STORED AS RCFILE; |
| create table smb_bucket_3_n1(key int, value string) CLUSTERED BY (key) SORTED BY (key) INTO 1 BUCKETS STORED AS RCFILE; |
| |
| load data local inpath '../../data/files/smb_rc1/000000_0' overwrite into table smb_bucket_1_n1; |
| load data local inpath '../../data/files/smb_rc2/000000_0' overwrite into table smb_bucket_2_n1; |
| load data local inpath '../../data/files/smb_rc3/000000_0' overwrite into table smb_bucket_3_n1; |
| |
| set hive.optimize.bucketmapjoin = true; |
| set hive.optimize.bucketmapjoin.sortedmerge = true; |
| set hive.input.format = org.apache.hadoop.hive.ql.io.BucketizedHiveInputFormat; |
| set hive.cbo.enable=false; |
| -- SORT_QUERY_RESULTS |
| |
| explain |
| select /*+mapjoin(a)*/ * from smb_bucket_1_n1 a join smb_bucket_3_n1 b on a.key = b.key; |
| select /*+mapjoin(a)*/ * from smb_bucket_1_n1 a join smb_bucket_3_n1 b on a.key = b.key; |
| |
| explain |
| select /*+mapjoin(a)*/ * from smb_bucket_1_n1 a left outer join smb_bucket_3_n1 b on a.key = b.key; |
| select /*+mapjoin(a)*/ * from smb_bucket_1_n1 a left outer join smb_bucket_3_n1 b on a.key = b.key; |
| |
| explain |
| select /*+mapjoin(a)*/ * from smb_bucket_1_n1 a right outer join smb_bucket_3_n1 b on a.key = b.key; |
| select /*+mapjoin(a)*/ * from smb_bucket_1_n1 a right outer join smb_bucket_3_n1 b on a.key = b.key; |
| |
| explain |
| select /*+mapjoin(a)*/ * from smb_bucket_1_n1 a full outer join smb_bucket_3_n1 b on a.key = b.key; |
| select /*+mapjoin(a)*/ * from smb_bucket_1_n1 a full outer join smb_bucket_3_n1 b on a.key = b.key; |
| |
| |
| explain |
| select /*+mapjoin(b)*/ * from smb_bucket_1_n1 a join smb_bucket_3_n1 b on a.key = b.key; |
| select /*+mapjoin(b)*/ * from smb_bucket_1_n1 a join smb_bucket_3_n1 b on a.key = b.key; |
| |
| explain |
| select /*+mapjoin(b)*/ * from smb_bucket_1_n1 a left outer join smb_bucket_3_n1 b on a.key = b.key; |
| select /*+mapjoin(b)*/ * from smb_bucket_1_n1 a left outer join smb_bucket_3_n1 b on a.key = b.key; |
| |
| explain |
| select /*+mapjoin(b)*/ * from smb_bucket_1_n1 a right outer join smb_bucket_3_n1 b on a.key = b.key; |
| select /*+mapjoin(b)*/ * from smb_bucket_1_n1 a right outer join smb_bucket_3_n1 b on a.key = b.key; |
| |
| explain |
| select /*+mapjoin(b)*/ * from smb_bucket_1_n1 a full outer join smb_bucket_3_n1 b on a.key = b.key; |
| select /*+mapjoin(b)*/ * from smb_bucket_1_n1 a full outer join smb_bucket_3_n1 b on a.key = b.key; |
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