Saving all output to "!!{outputDirectory}!!/join29.q.raw". Enter "record" with no arguments to stop it. >>> !run !!{qFileDirectory}!!/join29.q >>> CREATE TABLE dest_j1(key STRING, cnt1 INT, cnt2 INT); No rows affected >>> >>> EXPLAIN INSERT OVERWRITE TABLE dest_j1 SELECT /*+ MAPJOIN(subq1) */ subq1.key, subq1.cnt, subq2.cnt FROM (select x.key, count(1) as cnt from src1 x group by x.key) subq1 JOIN (select y.key, count(1) as cnt from src y group by y.key) subq2 ON (subq1.key = subq2.key); 'Explain' 'ABSTRACT SYNTAX TREE:' ' (TOK_QUERY (TOK_FROM (TOK_JOIN (TOK_SUBQUERY (TOK_QUERY (TOK_FROM (TOK_TABREF (TOK_TABNAME src1) x)) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (. (TOK_TABLE_OR_COL x) key)) (TOK_SELEXPR (TOK_FUNCTION count 1) cnt)) (TOK_GROUPBY (. (TOK_TABLE_OR_COL x) key)))) subq1) (TOK_SUBQUERY (TOK_QUERY (TOK_FROM (TOK_TABREF (TOK_TABNAME src) y)) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (. (TOK_TABLE_OR_COL y) key)) (TOK_SELEXPR (TOK_FUNCTION count 1) cnt)) (TOK_GROUPBY (. (TOK_TABLE_OR_COL y) key)))) subq2) (= (. (TOK_TABLE_OR_COL subq1) key) (. (TOK_TABLE_OR_COL subq2) key)))) (TOK_INSERT (TOK_DESTINATION (TOK_TAB (TOK_TABNAME dest_j1))) (TOK_SELECT (TOK_HINTLIST (TOK_HINT TOK_MAPJOIN (TOK_HINTARGLIST subq1))) (TOK_SELEXPR (. (TOK_TABLE_OR_COL subq1) key)) (TOK_SELEXPR (. (TOK_TABLE_OR_COL subq1) cnt)) (TOK_SELEXPR (. (TOK_TABLE_OR_COL subq2) cnt)))))' '' 'STAGE DEPENDENCIES:' ' Stage-1 is a root stage' ' Stage-11 depends on stages: Stage-1, Stage-9' ' Stage-2 depends on stages: Stage-11' ' Stage-8 depends on stages: Stage-2 , consists of Stage-5, Stage-4, Stage-6' ' Stage-5' ' Stage-0 depends on stages: Stage-5, Stage-4, Stage-7' ' Stage-3 depends on stages: Stage-0' ' Stage-4' ' Stage-6' ' Stage-7 depends on stages: Stage-6' ' Stage-9 is a root stage' '' 'STAGE PLANS:' ' Stage: Stage-1' ' Map Reduce' ' Alias -> Map Operator Tree:' ' subq2:y ' ' TableScan' ' alias: y' ' Select Operator' ' expressions:' ' expr: key' ' type: string' ' outputColumnNames: key' ' Group By Operator' ' aggregations:' ' expr: count(1)' ' bucketGroup: false' ' keys:' ' expr: key' ' type: string' ' mode: hash' ' outputColumnNames: _col0, _col1' ' Reduce Output Operator' ' key expressions:' ' expr: _col0' ' type: string' ' sort order: +' ' Map-reduce partition columns:' ' expr: _col0' ' type: string' ' tag: -1' ' value expressions:' ' expr: _col1' ' type: bigint' ' Reduce Operator Tree:' ' Group By Operator' ' aggregations:' ' expr: count(VALUE._col0)' ' bucketGroup: false' ' keys:' ' expr: KEY._col0' ' type: string' ' mode: mergepartial' ' outputColumnNames: _col0, _col1' ' Select Operator' ' expressions:' ' expr: _col0' ' type: string' ' expr: _col1' ' type: bigint' ' outputColumnNames: _col0, _col1' ' File Output Operator' ' compressed: false' ' GlobalTableId: 0' ' table:' ' input format: org.apache.hadoop.mapred.SequenceFileInputFormat' ' output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat' '' ' Stage: Stage-11' ' Map Reduce Local Work' ' Alias -> Map Local Tables:' ' file:!!{hive.exec.scratchdir}!! ' ' Fetch Operator' ' limit: -1' ' Alias -> Map Local Operator Tree:' ' file:!!{hive.exec.scratchdir}!! ' ' HashTable Sink Operator' ' condition expressions:' ' 0 {_col0} {_col1}' ' 1 {_col1}' ' handleSkewJoin: false' ' keys:' ' 0 [Column[_col0]]' ' 1 [Column[_col0]]' ' Position of Big Table: 1' '' ' Stage: Stage-2' ' Map Reduce' ' Alias -> Map Operator Tree:' ' file:!!{hive.exec.scratchdir}!! ' ' Map Join Operator' ' condition map:' ' Inner Join 0 to 1' ' condition expressions:' ' 0 {_col0} {_col1}' ' 1 {_col1}' ' handleSkewJoin: false' ' keys:' ' 0 [Column[_col0]]' ' 1 [Column[_col0]]' ' outputColumnNames: _col0, _col1, _col3' ' Position of Big Table: 1' ' Select Operator' ' expressions:' ' expr: _col0' ' type: string' ' expr: _col1' ' type: bigint' ' expr: _col3' ' type: bigint' ' outputColumnNames: _col0, _col1, _col3' ' Select Operator' ' expressions:' ' expr: _col0' ' type: string' ' expr: _col1' ' type: bigint' ' expr: _col3' ' type: bigint' ' outputColumnNames: _col0, _col1, _col2' ' Select Operator' ' expressions:' ' expr: _col0' ' type: string' ' expr: UDFToInteger(_col1)' ' type: int' ' expr: UDFToInteger(_col2)' ' type: int' ' outputColumnNames: _col0, _col1, _col2' ' File Output Operator' ' compressed: false' ' GlobalTableId: 1' ' table:' ' input format: org.apache.hadoop.mapred.TextInputFormat' ' output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat' ' serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe' ' name: join29.dest_j1' ' Local Work:' ' Map Reduce Local Work' '' ' Stage: Stage-8' ' Conditional Operator' '' ' Stage: Stage-5' ' Move Operator' ' files:' ' hdfs directory: true' ' destination: pfile:!!{hive.exec.scratchdir}!!' '' ' Stage: Stage-0' ' Move Operator' ' tables:' ' replace: true' ' table:' ' input format: org.apache.hadoop.mapred.TextInputFormat' ' output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat' ' serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe' ' name: join29.dest_j1' '' ' Stage: Stage-3' ' Stats-Aggr Operator' '' ' Stage: Stage-4' ' Map Reduce' ' Alias -> Map Operator Tree:' ' pfile:!!{hive.exec.scratchdir}!! ' ' File Output Operator' ' compressed: false' ' GlobalTableId: 0' ' table:' ' input format: org.apache.hadoop.mapred.TextInputFormat' ' output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat' ' serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe' ' name: join29.dest_j1' '' ' Stage: Stage-6' ' Map Reduce' ' Alias -> Map Operator Tree:' ' pfile:!!{hive.exec.scratchdir}!! ' ' File Output Operator' ' compressed: false' ' GlobalTableId: 0' ' table:' ' input format: org.apache.hadoop.mapred.TextInputFormat' ' output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat' ' serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe' ' name: join29.dest_j1' '' ' Stage: Stage-7' ' Move Operator' ' files:' ' hdfs directory: true' ' destination: pfile:!!{hive.exec.scratchdir}!!' '' ' Stage: Stage-9' ' Map Reduce' ' Alias -> Map Operator Tree:' ' subq1:x ' ' TableScan' ' alias: x' ' Select Operator' ' expressions:' ' expr: key' ' type: string' ' outputColumnNames: key' ' Group By Operator' ' aggregations:' ' expr: count(1)' ' bucketGroup: false' ' keys:' ' expr: key' ' type: string' ' mode: hash' ' outputColumnNames: _col0, _col1' ' Reduce Output Operator' ' key expressions:' ' expr: _col0' ' type: string' ' sort order: +' ' Map-reduce partition columns:' ' expr: _col0' ' type: string' ' tag: -1' ' value expressions:' ' expr: _col1' ' type: bigint' ' Reduce Operator Tree:' ' Group By Operator' ' aggregations:' ' expr: count(VALUE._col0)' ' bucketGroup: false' ' keys:' ' expr: KEY._col0' ' type: string' ' mode: mergepartial' ' outputColumnNames: _col0, _col1' ' Select Operator' ' expressions:' ' expr: _col0' ' type: string' ' expr: _col1' ' type: bigint' ' outputColumnNames: _col0, _col1' ' File Output Operator' ' compressed: false' ' GlobalTableId: 0' ' table:' ' input format: org.apache.hadoop.mapred.SequenceFileInputFormat' ' output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat' '' '' 256 rows selected >>> >>> INSERT OVERWRITE TABLE dest_j1 SELECT /*+ MAPJOIN(subq1) */ subq1.key, subq1.cnt, subq2.cnt FROM (select x.key, count(1) as cnt from src1 x group by x.key) subq1 JOIN (select y.key, count(1) as cnt from src y group by y.key) subq2 ON (subq1.key = subq2.key); '_col0','_col1','_col2' No rows selected >>> >>> select * from dest_j1 x order by x.key; 'key','cnt1','cnt2' '128','1','3' '146','1','2' '150','1','1' '213','1','2' '224','1','2' '238','1','2' '255','1','2' '273','1','3' '278','1','2' '311','1','3' '369','1','3' '401','1','5' '406','1','4' '66','1','1' '98','1','2' 15 rows selected >>> !record