Saving all output to "!!{outputDirectory}!!/reduce_deduplicate_exclude_join.q.raw". Enter "record" with no arguments to stop it.
>>>  !run !!{qFileDirectory}!!/reduce_deduplicate_exclude_join.q
>>>  set hive.optimize.reducededuplication=true;
No rows affected 
>>>  set hive.auto.convert.join=true;
No rows affected 
>>>  explain select * from (select * from src cluster by key) a join src b on a.key = b.key limit 1;
'Explain'
'ABSTRACT SYNTAX TREE:'
'  (TOK_QUERY (TOK_FROM (TOK_JOIN (TOK_SUBQUERY (TOK_QUERY (TOK_FROM (TOK_TABREF (TOK_TABNAME src))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR TOK_ALLCOLREF)) (TOK_CLUSTERBY (TOK_TABLE_OR_COL key)))) a) (TOK_TABREF (TOK_TABNAME src) b) (= (. (TOK_TABLE_OR_COL a) key) (. (TOK_TABLE_OR_COL b) key)))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR TOK_ALLCOLREF)) (TOK_LIMIT 1)))'
''
'STAGE DEPENDENCIES:'
'  Stage-2 is a root stage'
'  Stage-5 depends on stages: Stage-2 , consists of Stage-6, Stage-7, Stage-1'
'  Stage-6 has a backup stage: Stage-1'
'  Stage-3 depends on stages: Stage-6'
'  Stage-7 has a backup stage: Stage-1'
'  Stage-4 depends on stages: Stage-7'
'  Stage-1'
'  Stage-0 is a root stage'
''
'STAGE PLANS:'
'  Stage: Stage-2'
'    Map Reduce'
'      Alias -> Map Operator Tree:'
'        a:src '
'          TableScan'
'            alias: src'
'            Select Operator'
'              expressions:'
'                    expr: key'
'                    type: string'
'                    expr: value'
'                    type: string'
'              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: _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.SequenceFileInputFormat'
'                output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat'
''
'  Stage: Stage-5'
'    Conditional Operator'
''
'  Stage: Stage-6'
'    Map Reduce Local Work'
'      Alias -> Map Local Tables:'
'        b '
'          Fetch Operator'
'            limit: -1'
'      Alias -> Map Local Operator Tree:'
'        b '
'          TableScan'
'            alias: b'
'            HashTable Sink Operator'
'              condition expressions:'
'                0 {_col0} {_col1}'
'                1 {key} {value}'
'              handleSkewJoin: false'
'              keys:'
'                0 [Column[_col0]]'
'                1 [Column[key]]'
'              Position of Big Table: 0'
''
'  Stage: Stage-3'
'    Map Reduce'
'      Alias -> Map Operator Tree:'
'        $INTNAME '
'            Map Join Operator'
'              condition map:'
'                   Inner Join 0 to 1'
'              condition expressions:'
'                0 {_col0} {_col1}'
'                1 {key} {value}'
'              handleSkewJoin: false'
'              keys:'
'                0 [Column[_col0]]'
'                1 [Column[key]]'
'              outputColumnNames: _col0, _col1, _col2, _col3'
'              Position of Big Table: 0'
'              Select Operator'
'                expressions:'
'                      expr: _col0'
'                      type: string'
'                      expr: _col1'
'                      type: string'
'                      expr: _col2'
'                      type: string'
'                      expr: _col3'
'                      type: string'
'                outputColumnNames: _col0, _col1, _col2, _col3'
'                Limit'
'                  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-7'
'    Map Reduce Local Work'
'      Alias -> Map Local Tables:'
'        $INTNAME '
'          Fetch Operator'
'            limit: -1'
'      Alias -> Map Local Operator Tree:'
'        $INTNAME '
'            HashTable Sink Operator'
'              condition expressions:'
'                0 {_col0} {_col1}'
'                1 {key} {value}'
'              handleSkewJoin: false'
'              keys:'
'                0 [Column[_col0]]'
'                1 [Column[key]]'
'              Position of Big Table: 1'
''
'  Stage: Stage-4'
'    Map Reduce'
'      Alias -> Map Operator Tree:'
'        b '
'          TableScan'
'            alias: b'
'            Map Join Operator'
'              condition map:'
'                   Inner Join 0 to 1'
'              condition expressions:'
'                0 {_col0} {_col1}'
'                1 {key} {value}'
'              handleSkewJoin: false'
'              keys:'
'                0 [Column[_col0]]'
'                1 [Column[key]]'
'              outputColumnNames: _col0, _col1, _col2, _col3'
'              Position of Big Table: 1'
'              Select Operator'
'                expressions:'
'                      expr: _col0'
'                      type: string'
'                      expr: _col1'
'                      type: string'
'                      expr: _col2'
'                      type: string'
'                      expr: _col3'
'                      type: string'
'                outputColumnNames: _col0, _col1, _col2, _col3'
'                Limit'
'                  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-1'
'    Map Reduce'
'      Alias -> Map Operator Tree:'
'        $INTNAME '
'            Reduce Output Operator'
'              key expressions:'
'                    expr: _col0'
'                    type: string'
'              sort order: +'
'              Map-reduce partition columns:'
'                    expr: _col0'
'                    type: string'
'              tag: 0'
'              value expressions:'
'                    expr: _col0'
'                    type: string'
'                    expr: _col1'
'                    type: string'
'        b '
'          TableScan'
'            alias: b'
'            Reduce Output Operator'
'              key expressions:'
'                    expr: key'
'                    type: string'
'              sort order: +'
'              Map-reduce partition columns:'
'                    expr: key'
'                    type: string'
'              tag: 1'
'              value expressions:'
'                    expr: key'
'                    type: string'
'                    expr: value'
'                    type: string'
'      Reduce Operator Tree:'
'        Join Operator'
'          condition map:'
'               Inner Join 0 to 1'
'          condition expressions:'
'            0 {VALUE._col0} {VALUE._col1}'
'            1 {VALUE._col0} {VALUE._col1}'
'          handleSkewJoin: false'
'          outputColumnNames: _col0, _col1, _col2, _col3'
'          Select Operator'
'            expressions:'
'                  expr: _col0'
'                  type: string'
'                  expr: _col1'
'                  type: string'
'                  expr: _col2'
'                  type: string'
'                  expr: _col3'
'                  type: string'
'            outputColumnNames: _col0, _col1, _col2, _col3'
'            Limit'
'              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'
''
''
235 rows selected 
>>>  !record