Saving all output to "!!{outputDirectory}!!/mapjoin_subquery.q.raw". Enter "record" with no arguments to stop it.
>>>  !run !!{qFileDirectory}!!/mapjoin_subquery.q
>>>  EXPLAIN 
SELECT /*+ MAPJOIN(z) */ subq.key1, z.value 
FROM 
(SELECT /*+ MAPJOIN(x) */ x.key as key1, x.value as value1, y.key as key2, y.value as value2 
FROM src1 x JOIN src y ON (x.key = y.key)) subq 
JOIN srcpart z ON (subq.key1 = z.key and z.ds='2008-04-08' and z.hr=11);
'Explain'
'ABSTRACT SYNTAX TREE:'
'  (TOK_QUERY (TOK_FROM (TOK_JOIN (TOK_SUBQUERY (TOK_QUERY (TOK_FROM (TOK_JOIN (TOK_TABREF (TOK_TABNAME src1) x) (TOK_TABREF (TOK_TABNAME src) y) (= (. (TOK_TABLE_OR_COL x) key) (. (TOK_TABLE_OR_COL y) key)))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_HINTLIST (TOK_HINT TOK_MAPJOIN (TOK_HINTARGLIST x))) (TOK_SELEXPR (. (TOK_TABLE_OR_COL x) key) key1) (TOK_SELEXPR (. (TOK_TABLE_OR_COL x) value) value1) (TOK_SELEXPR (. (TOK_TABLE_OR_COL y) key) key2) (TOK_SELEXPR (. (TOK_TABLE_OR_COL y) value) value2)))) subq) (TOK_TABREF (TOK_TABNAME srcpart) z) (and (and (= (. (TOK_TABLE_OR_COL subq) key1) (. (TOK_TABLE_OR_COL z) key)) (= (. (TOK_TABLE_OR_COL z) ds) '2008-04-08')) (= (. (TOK_TABLE_OR_COL z) hr) 11)))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_HINTLIST (TOK_HINT TOK_MAPJOIN (TOK_HINTARGLIST z))) (TOK_SELEXPR (. (TOK_TABLE_OR_COL subq) key1)) (TOK_SELEXPR (. (TOK_TABLE_OR_COL z) value)))))'
''
'STAGE DEPENDENCIES:'
'  Stage-4 is a root stage'
'  Stage-1 depends on stages: Stage-4'
'  Stage-0 is a root stage'
''
'STAGE PLANS:'
'  Stage: Stage-4'
'    Map Reduce Local Work'
'      Alias -> Map Local Tables:'
'        subq:x '
'          Fetch Operator'
'            limit: -1'
'        z '
'          Fetch Operator'
'            limit: -1'
'      Alias -> Map Local Operator Tree:'
'        subq:x '
'          TableScan'
'            alias: x'
'            HashTable Sink Operator'
'              condition expressions:'
'                0 {key}'
'                1 '
'              handleSkewJoin: false'
'              keys:'
'                0 [Column[key]]'
'                1 [Column[key]]'
'              Position of Big Table: 1'
'        z '
'          TableScan'
'            alias: z'
'            HashTable Sink Operator'
'              condition expressions:'
'                0 {_col0}'
'                1 {value}'
'              handleSkewJoin: false'
'              keys:'
'                0 [Column[_col0]]'
'                1 [Column[key]]'
'              Position of Big Table: 0'
''
'  Stage: Stage-1'
'    Map Reduce'
'      Alias -> Map Operator Tree:'
'        subq:y '
'          TableScan'
'            alias: y'
'            Map Join Operator'
'              condition map:'
'                   Inner Join 0 to 1'
'              condition expressions:'
'                0 {key}'
'                1 '
'              handleSkewJoin: false'
'              keys:'
'                0 [Column[key]]'
'                1 [Column[key]]'
'              outputColumnNames: _col0'
'              Position of Big Table: 1'
'              Select Operator'
'                expressions:'
'                      expr: _col0'
'                      type: string'
'                outputColumnNames: _col0'
'                Select Operator'
'                  expressions:'
'                        expr: _col0'
'                        type: string'
'                  outputColumnNames: _col0'
'                  Map Join Operator'
'                    condition map:'
'                         Inner Join 0 to 1'
'                    condition expressions:'
'                      0 {_col0}'
'                      1 {value}'
'                    handleSkewJoin: false'
'                    keys:'
'                      0 [Column[_col0]]'
'                      1 [Column[key]]'
'                    outputColumnNames: _col0, _col5'
'                    Position of Big Table: 0'
'                    Select Operator'
'                      expressions:'
'                            expr: _col0'
'                            type: string'
'                            expr: _col5'
'                            type: string'
'                      outputColumnNames: _col0, _col5'
'                      Select Operator'
'                        expressions:'
'                              expr: _col0'
'                              type: string'
'                              expr: _col5'
'                              type: string'
'                        outputColumnNames: _col0, _col1'
'                        File Output Operator'
'                          compressed: false'
'                          GlobalTableId: 0'
'                          table:'
'                              input format: org.apache.hadoop.mapred.TextInputFormat'
'                              output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat'
'      Local Work:'
'        Map Reduce Local Work'
''
'  Stage: Stage-0'
'    Fetch Operator'
'      limit: -1'
''
''
112 rows selected 
>>>  
>>>  SELECT /*+ MAPJOIN(z) */ subq.key1, z.value 
FROM 
(SELECT /*+ MAPJOIN(x) */ x.key as key1, x.value as value1, y.key as key2, y.value as value2 
FROM src1 x JOIN src y ON (x.key = y.key)) subq 
JOIN srcpart z ON (subq.key1 = z.key and z.ds='2008-04-08' and z.hr=11);
'key1','value'
'238','val_238'
'238','val_238'
'311','val_311'
'311','val_311'
'311','val_311'
'255','val_255'
'255','val_255'
'278','val_278'
'278','val_278'
'98','val_98'
'98','val_98'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'150','val_150'
'273','val_273'
'273','val_273'
'273','val_273'
'224','val_224'
'224','val_224'
'369','val_369'
'369','val_369'
'369','val_369'
'66','val_66'
'128','val_128'
'128','val_128'
'128','val_128'
'213','val_213'
'213','val_213'
'146','val_146'
'146','val_146'
'406','val_406'
'406','val_406'
'406','val_406'
'406','val_406'
'128','val_128'
'128','val_128'
'128','val_128'
'311','val_311'
'311','val_311'
'311','val_311'
'213','val_213'
'213','val_213'
'278','val_278'
'278','val_278'
'311','val_311'
'311','val_311'
'311','val_311'
'98','val_98'
'98','val_98'
'369','val_369'
'369','val_369'
'369','val_369'
'238','val_238'
'238','val_238'
'273','val_273'
'273','val_273'
'273','val_273'
'224','val_224'
'224','val_224'
'369','val_369'
'369','val_369'
'369','val_369'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'128','val_128'
'128','val_128'
'128','val_128'
'406','val_406'
'406','val_406'
'406','val_406'
'406','val_406'
'406','val_406'
'406','val_406'
'406','val_406'
'406','val_406'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'255','val_255'
'255','val_255'
'406','val_406'
'406','val_406'
'406','val_406'
'406','val_406'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'146','val_146'
'146','val_146'
'273','val_273'
'273','val_273'
'273','val_273'
107 rows selected 
>>>  
>>>  EXPLAIN 
SELECT /*+ MAPJOIN(z) */ subq.key1, z.value 
FROM 
(SELECT /*+ MAPJOIN(x) */ x.key as key1, x.value as value1, y.key as key2, y.value as value2 
FROM src1 x JOIN src y ON (x.key = y.key)) subq 
JOIN srcpart z ON (subq.key1 = z.key and z.ds='2008-04-08' and z.hr=11) 
order by subq.key1;
'Explain'
'ABSTRACT SYNTAX TREE:'
'  (TOK_QUERY (TOK_FROM (TOK_JOIN (TOK_SUBQUERY (TOK_QUERY (TOK_FROM (TOK_JOIN (TOK_TABREF (TOK_TABNAME src1) x) (TOK_TABREF (TOK_TABNAME src) y) (= (. (TOK_TABLE_OR_COL x) key) (. (TOK_TABLE_OR_COL y) key)))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_HINTLIST (TOK_HINT TOK_MAPJOIN (TOK_HINTARGLIST x))) (TOK_SELEXPR (. (TOK_TABLE_OR_COL x) key) key1) (TOK_SELEXPR (. (TOK_TABLE_OR_COL x) value) value1) (TOK_SELEXPR (. (TOK_TABLE_OR_COL y) key) key2) (TOK_SELEXPR (. (TOK_TABLE_OR_COL y) value) value2)))) subq) (TOK_TABREF (TOK_TABNAME srcpart) z) (and (and (= (. (TOK_TABLE_OR_COL subq) key1) (. (TOK_TABLE_OR_COL z) key)) (= (. (TOK_TABLE_OR_COL z) ds) '2008-04-08')) (= (. (TOK_TABLE_OR_COL z) hr) 11)))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_HINTLIST (TOK_HINT TOK_MAPJOIN (TOK_HINTARGLIST z))) (TOK_SELEXPR (. (TOK_TABLE_OR_COL subq) key1)) (TOK_SELEXPR (. (TOK_TABLE_OR_COL z) value))) (TOK_ORDERBY (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL subq) key1)))))'
''
'STAGE DEPENDENCIES:'
'  Stage-5 is a root stage'
'  Stage-1 depends on stages: Stage-5'
'  Stage-2 depends on stages: Stage-1'
'  Stage-0 is a root stage'
''
'STAGE PLANS:'
'  Stage: Stage-5'
'    Map Reduce Local Work'
'      Alias -> Map Local Tables:'
'        subq:x '
'          Fetch Operator'
'            limit: -1'
'        z '
'          Fetch Operator'
'            limit: -1'
'      Alias -> Map Local Operator Tree:'
'        subq:x '
'          TableScan'
'            alias: x'
'            HashTable Sink Operator'
'              condition expressions:'
'                0 {key}'
'                1 '
'              handleSkewJoin: false'
'              keys:'
'                0 [Column[key]]'
'                1 [Column[key]]'
'              Position of Big Table: 1'
'        z '
'          TableScan'
'            alias: z'
'            HashTable Sink Operator'
'              condition expressions:'
'                0 {_col0}'
'                1 {value}'
'              handleSkewJoin: false'
'              keys:'
'                0 [Column[_col0]]'
'                1 [Column[key]]'
'              Position of Big Table: 0'
''
'  Stage: Stage-1'
'    Map Reduce'
'      Alias -> Map Operator Tree:'
'        subq:y '
'          TableScan'
'            alias: y'
'            Map Join Operator'
'              condition map:'
'                   Inner Join 0 to 1'
'              condition expressions:'
'                0 {key}'
'                1 '
'              handleSkewJoin: false'
'              keys:'
'                0 [Column[key]]'
'                1 [Column[key]]'
'              outputColumnNames: _col0'
'              Position of Big Table: 1'
'              Select Operator'
'                expressions:'
'                      expr: _col0'
'                      type: string'
'                outputColumnNames: _col0'
'                Select Operator'
'                  expressions:'
'                        expr: _col0'
'                        type: string'
'                  outputColumnNames: _col0'
'                  Map Join Operator'
'                    condition map:'
'                         Inner Join 0 to 1'
'                    condition expressions:'
'                      0 {_col0}'
'                      1 {value}'
'                    handleSkewJoin: false'
'                    keys:'
'                      0 [Column[_col0]]'
'                      1 [Column[key]]'
'                    outputColumnNames: _col0, _col5'
'                    Position of Big Table: 0'
'                    File Output Operator'
'                      compressed: false'
'                      GlobalTableId: 0'
'                      table:'
'                          input format: org.apache.hadoop.mapred.SequenceFileInputFormat'
'                          output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat'
'      Local Work:'
'        Map Reduce Local Work'
''
'  Stage: Stage-2'
'    Map Reduce'
'      Alias -> Map Operator Tree:'
'        file:!!{hive.exec.scratchdir}!! '
'          Select Operator'
'            expressions:'
'                  expr: _col0'
'                  type: string'
'                  expr: _col5'
'                  type: string'
'            outputColumnNames: _col0, _col5'
'            Select Operator'
'              expressions:'
'                    expr: _col0'
'                    type: string'
'                    expr: _col5'
'                    type: string'
'              outputColumnNames: _col0, _col1'
'              Reduce Output Operator'
'                key expressions:'
'                      expr: _col0'
'                      type: string'
'                sort order: +'
'                tag: -1'
'                value expressions:'
'                      expr: _col0'
'                      type: string'
'                      expr: _col1'
'                      type: string'
'      Reduce Operator Tree:'
'        Extract'
'          File Output Operator'
'            compressed: false'
'            GlobalTableId: 0'
'            table:'
'                input format: org.apache.hadoop.mapred.TextInputFormat'
'                output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat'
''
'  Stage: Stage-0'
'    Fetch Operator'
'      limit: -1'
''
''
137 rows selected 
>>>  
>>>  
>>>  SELECT /*+ MAPJOIN(z) */ subq.key1, z.value 
FROM 
(SELECT /*+ MAPJOIN(x) */ x.key as key1, x.value as value1, y.key as key2, y.value as value2 
FROM src1 x JOIN src y ON (x.key = y.key)) subq 
JOIN srcpart z ON (subq.key1 = z.key and z.ds='2008-04-08' and z.hr=11) 
order by subq.key1;
'key1','value'
'128','val_128'
'128','val_128'
'128','val_128'
'128','val_128'
'128','val_128'
'128','val_128'
'128','val_128'
'128','val_128'
'128','val_128'
'146','val_146'
'146','val_146'
'146','val_146'
'146','val_146'
'150','val_150'
'213','val_213'
'213','val_213'
'213','val_213'
'213','val_213'
'224','val_224'
'224','val_224'
'224','val_224'
'224','val_224'
'238','val_238'
'238','val_238'
'238','val_238'
'238','val_238'
'255','val_255'
'255','val_255'
'255','val_255'
'255','val_255'
'273','val_273'
'273','val_273'
'273','val_273'
'273','val_273'
'273','val_273'
'273','val_273'
'273','val_273'
'273','val_273'
'273','val_273'
'278','val_278'
'278','val_278'
'278','val_278'
'278','val_278'
'311','val_311'
'311','val_311'
'311','val_311'
'311','val_311'
'311','val_311'
'311','val_311'
'311','val_311'
'311','val_311'
'311','val_311'
'369','val_369'
'369','val_369'
'369','val_369'
'369','val_369'
'369','val_369'
'369','val_369'
'369','val_369'
'369','val_369'
'369','val_369'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'401','val_401'
'406','val_406'
'406','val_406'
'406','val_406'
'406','val_406'
'406','val_406'
'406','val_406'
'406','val_406'
'406','val_406'
'406','val_406'
'406','val_406'
'406','val_406'
'406','val_406'
'406','val_406'
'406','val_406'
'406','val_406'
'406','val_406'
'66','val_66'
'98','val_98'
'98','val_98'
'98','val_98'
'98','val_98'
107 rows selected 
>>>  !record