Saving all output to "!!{outputDirectory}!!/join_nullsafe.q.raw". Enter "record" with no arguments to stop it.
>>>  !run !!{qFileDirectory}!!/join_nullsafe.q
>>>  set hive.nullsafe.equijoin=true;
No rows affected 
>>>  
>>>  CREATE TABLE myinput1(key int, value int);
No rows affected 
>>>  LOAD DATA LOCAL INPATH '../data/files/in8.txt' INTO TABLE myinput1;
No rows affected 
>>>  
>>>  -- merging
>>>  explain select * from myinput1 a join myinput1 b on a.key<=>b.value ORDER BY a.key, a.value, b.key, b.value;
'Explain'
'ABSTRACT SYNTAX TREE:'
'  (TOK_QUERY (TOK_FROM (TOK_JOIN (TOK_TABREF (TOK_TABNAME myinput1) a) (TOK_TABREF (TOK_TABNAME myinput1) b) (<=> (. (TOK_TABLE_OR_COL a) key) (. (TOK_TABLE_OR_COL b) value)))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR TOK_ALLCOLREF)) (TOK_ORDERBY (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL a) key)) (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL a) value)) (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL b) key)) (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL b) value)))))'
''
'STAGE DEPENDENCIES:'
'  Stage-1 is a root stage'
'  Stage-2 depends on stages: Stage-1'
'  Stage-0 is a root stage'
''
'STAGE PLANS:'
'  Stage: Stage-1'
'    Map Reduce'
'      Alias -> Map Operator Tree:'
'        a '
'          TableScan'
'            alias: a'
'            Reduce Output Operator'
'              key expressions:'
'                    expr: key'
'                    type: int'
'              sort order: +'
'              Map-reduce partition columns:'
'                    expr: key'
'                    type: int'
'              tag: 0'
'              value expressions:'
'                    expr: key'
'                    type: int'
'                    expr: value'
'                    type: int'
'        b '
'          TableScan'
'            alias: b'
'            Reduce Output Operator'
'              key expressions:'
'                    expr: value'
'                    type: int'
'              sort order: +'
'              Map-reduce partition columns:'
'                    expr: value'
'                    type: int'
'              tag: 1'
'              value expressions:'
'                    expr: key'
'                    type: int'
'                    expr: value'
'                    type: int'
'      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'
'          nullSafes: [true]'
'          outputColumnNames: _col0, _col1, _col4, _col5'
'          Select Operator'
'            expressions:'
'                  expr: _col0'
'                  type: int'
'                  expr: _col1'
'                  type: int'
'                  expr: _col4'
'                  type: int'
'                  expr: _col5'
'                  type: int'
'            outputColumnNames: _col0, _col1, _col2, _col3'
'            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-2'
'    Map Reduce'
'      Alias -> Map Operator Tree:'
'        file:!!{hive.exec.scratchdir}!! '
'            Reduce Output Operator'
'              key expressions:'
'                    expr: _col0'
'                    type: int'
'                    expr: _col1'
'                    type: int'
'                    expr: _col2'
'                    type: int'
'                    expr: _col3'
'                    type: int'
'              sort order: ++++'
'              tag: -1'
'              value expressions:'
'                    expr: _col0'
'                    type: int'
'                    expr: _col1'
'                    type: int'
'                    expr: _col2'
'                    type: int'
'                    expr: _col3'
'                    type: int'
'      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'
''
''
113 rows selected 
>>>  select * from myinput1 a join myinput1 b on a.key<=>b.value ORDER BY a.key, a.value, b.key, b.value;
'key','value','key','value'
'','','',''
'','','10',''
'','','48',''
'','10','',''
'','10','10',''
'','10','48',''
'','35','',''
'','35','10',''
'','35','48',''
'10','','','10'
'100','100','100','100'
11 rows selected 
>>>  
>>>  explain select * from myinput1 a join myinput1 b on a.key<=>b.value join myinput1 c on a.key=c.key ORDER BY a.key, a.value, b.key, b.value, c.key, c.value;
'Explain'
'ABSTRACT SYNTAX TREE:'
'  (TOK_QUERY (TOK_FROM (TOK_JOIN (TOK_JOIN (TOK_TABREF (TOK_TABNAME myinput1) a) (TOK_TABREF (TOK_TABNAME myinput1) b) (<=> (. (TOK_TABLE_OR_COL a) key) (. (TOK_TABLE_OR_COL b) value))) (TOK_TABREF (TOK_TABNAME myinput1) c) (= (. (TOK_TABLE_OR_COL a) key) (. (TOK_TABLE_OR_COL c) key)))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR TOK_ALLCOLREF)) (TOK_ORDERBY (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL a) key)) (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL a) value)) (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL b) key)) (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL b) value)) (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL c) key)) (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL c) value)))))'
''
'STAGE DEPENDENCIES:'
'  Stage-1 is a root stage'
'  Stage-2 depends on stages: Stage-1'
'  Stage-0 is a root stage'
''
'STAGE PLANS:'
'  Stage: Stage-1'
'    Map Reduce'
'      Alias -> Map Operator Tree:'
'        a '
'          TableScan'
'            alias: a'
'            Reduce Output Operator'
'              key expressions:'
'                    expr: key'
'                    type: int'
'              sort order: +'
'              Map-reduce partition columns:'
'                    expr: key'
'                    type: int'
'              tag: 0'
'              value expressions:'
'                    expr: key'
'                    type: int'
'                    expr: value'
'                    type: int'
'        b '
'          TableScan'
'            alias: b'
'            Reduce Output Operator'
'              key expressions:'
'                    expr: value'
'                    type: int'
'              sort order: +'
'              Map-reduce partition columns:'
'                    expr: value'
'                    type: int'
'              tag: 1'
'              value expressions:'
'                    expr: key'
'                    type: int'
'                    expr: value'
'                    type: int'
'        c '
'          TableScan'
'            alias: c'
'            Reduce Output Operator'
'              key expressions:'
'                    expr: key'
'                    type: int'
'              sort order: +'
'              Map-reduce partition columns:'
'                    expr: key'
'                    type: int'
'              tag: 2'
'              value expressions:'
'                    expr: key'
'                    type: int'
'                    expr: value'
'                    type: int'
'      Reduce Operator Tree:'
'        Join Operator'
'          condition map:'
'               Inner Join 0 to 1'
'               Inner Join 0 to 2'
'          condition expressions:'
'            0 {VALUE._col0} {VALUE._col1}'
'            1 {VALUE._col0} {VALUE._col1}'
'            2 {VALUE._col0} {VALUE._col1}'
'          handleSkewJoin: false'
'          outputColumnNames: _col0, _col1, _col4, _col5, _col8, _col9'
'          Select Operator'
'            expressions:'
'                  expr: _col0'
'                  type: int'
'                  expr: _col1'
'                  type: int'
'                  expr: _col4'
'                  type: int'
'                  expr: _col5'
'                  type: int'
'                  expr: _col8'
'                  type: int'
'                  expr: _col9'
'                  type: int'
'            outputColumnNames: _col0, _col1, _col2, _col3, _col4, _col5'
'            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-2'
'    Map Reduce'
'      Alias -> Map Operator Tree:'
'        file:!!{hive.exec.scratchdir}!! '
'            Reduce Output Operator'
'              key expressions:'
'                    expr: _col0'
'                    type: int'
'                    expr: _col1'
'                    type: int'
'                    expr: _col2'
'                    type: int'
'                    expr: _col3'
'                    type: int'
'                    expr: _col4'
'                    type: int'
'                    expr: _col5'
'                    type: int'
'              sort order: ++++++'
'              tag: -1'
'              value expressions:'
'                    expr: _col0'
'                    type: int'
'                    expr: _col1'
'                    type: int'
'                    expr: _col2'
'                    type: int'
'                    expr: _col3'
'                    type: int'
'                    expr: _col4'
'                    type: int'
'                    expr: _col5'
'                    type: int'
'      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'
''
''
143 rows selected 
>>>  select * from myinput1 a join myinput1 b on a.key<=>b.value join myinput1 c on a.key=c.key ORDER BY a.key, a.value, b.key, b.value, c.key, c.value;
'key','value','key','value','key','value'
'10','','','10','10',''
'100','100','100','100','100','100'
2 rows selected 
>>>  
>>>  explain select * from myinput1 a join myinput1 b on a.key<=>b.value join myinput1 c on a.key<=>c.key ORDER BY a.key, a.value, b.key, b.value, c.key, c.value;
'Explain'
'ABSTRACT SYNTAX TREE:'
'  (TOK_QUERY (TOK_FROM (TOK_JOIN (TOK_JOIN (TOK_TABREF (TOK_TABNAME myinput1) a) (TOK_TABREF (TOK_TABNAME myinput1) b) (<=> (. (TOK_TABLE_OR_COL a) key) (. (TOK_TABLE_OR_COL b) value))) (TOK_TABREF (TOK_TABNAME myinput1) c) (<=> (. (TOK_TABLE_OR_COL a) key) (. (TOK_TABLE_OR_COL c) key)))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR TOK_ALLCOLREF)) (TOK_ORDERBY (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL a) key)) (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL a) value)) (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL b) key)) (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL b) value)) (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL c) key)) (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL c) value)))))'
''
'STAGE DEPENDENCIES:'
'  Stage-1 is a root stage'
'  Stage-2 depends on stages: Stage-1'
'  Stage-0 is a root stage'
''
'STAGE PLANS:'
'  Stage: Stage-1'
'    Map Reduce'
'      Alias -> Map Operator Tree:'
'        a '
'          TableScan'
'            alias: a'
'            Reduce Output Operator'
'              key expressions:'
'                    expr: key'
'                    type: int'
'              sort order: +'
'              Map-reduce partition columns:'
'                    expr: key'
'                    type: int'
'              tag: 0'
'              value expressions:'
'                    expr: key'
'                    type: int'
'                    expr: value'
'                    type: int'
'        b '
'          TableScan'
'            alias: b'
'            Reduce Output Operator'
'              key expressions:'
'                    expr: value'
'                    type: int'
'              sort order: +'
'              Map-reduce partition columns:'
'                    expr: value'
'                    type: int'
'              tag: 1'
'              value expressions:'
'                    expr: key'
'                    type: int'
'                    expr: value'
'                    type: int'
'        c '
'          TableScan'
'            alias: c'
'            Reduce Output Operator'
'              key expressions:'
'                    expr: key'
'                    type: int'
'              sort order: +'
'              Map-reduce partition columns:'
'                    expr: key'
'                    type: int'
'              tag: 2'
'              value expressions:'
'                    expr: key'
'                    type: int'
'                    expr: value'
'                    type: int'
'      Reduce Operator Tree:'
'        Join Operator'
'          condition map:'
'               Inner Join 0 to 1'
'               Inner Join 0 to 2'
'          condition expressions:'
'            0 {VALUE._col0} {VALUE._col1}'
'            1 {VALUE._col0} {VALUE._col1}'
'            2 {VALUE._col0} {VALUE._col1}'
'          handleSkewJoin: false'
'          nullSafes: [true]'
'          outputColumnNames: _col0, _col1, _col4, _col5, _col8, _col9'
'          Select Operator'
'            expressions:'
'                  expr: _col0'
'                  type: int'
'                  expr: _col1'
'                  type: int'
'                  expr: _col4'
'                  type: int'
'                  expr: _col5'
'                  type: int'
'                  expr: _col8'
'                  type: int'
'                  expr: _col9'
'                  type: int'
'            outputColumnNames: _col0, _col1, _col2, _col3, _col4, _col5'
'            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-2'
'    Map Reduce'
'      Alias -> Map Operator Tree:'
'        file:!!{hive.exec.scratchdir}!! '
'            Reduce Output Operator'
'              key expressions:'
'                    expr: _col0'
'                    type: int'
'                    expr: _col1'
'                    type: int'
'                    expr: _col2'
'                    type: int'
'                    expr: _col3'
'                    type: int'
'                    expr: _col4'
'                    type: int'
'                    expr: _col5'
'                    type: int'
'              sort order: ++++++'
'              tag: -1'
'              value expressions:'
'                    expr: _col0'
'                    type: int'
'                    expr: _col1'
'                    type: int'
'                    expr: _col2'
'                    type: int'
'                    expr: _col3'
'                    type: int'
'                    expr: _col4'
'                    type: int'
'                    expr: _col5'
'                    type: int'
'      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'
''
''
144 rows selected 
>>>  select * from myinput1 a join myinput1 b on a.key<=>b.value join myinput1 c on a.key<=>c.key ORDER BY a.key, a.value, b.key, b.value, c.key, c.value;
'key','value','key','value','key','value'
'','','','','',''
'','','','','','10'
'','','','','','35'
'','','10','','',''
'','','10','','','10'
'','','10','','','35'
'','','48','','',''
'','','48','','','10'
'','','48','','','35'
'','10','','','',''
'','10','','','','10'
'','10','','','','35'
'','10','10','','',''
'','10','10','','','10'
'','10','10','','','35'
'','10','48','','',''
'','10','48','','','10'
'','10','48','','','35'
'','35','','','',''
'','35','','','','10'
'','35','','','','35'
'','35','10','','',''
'','35','10','','','10'
'','35','10','','','35'
'','35','48','','',''
'','35','48','','','10'
'','35','48','','','35'
'10','','','10','10',''
'100','100','100','100','100','100'
29 rows selected 
>>>  
>>>  explain select * from myinput1 a join myinput1 b on a.key<=>b.value AND a.value=b.key join myinput1 c on a.key<=>c.key AND a.value=c.value ORDER BY a.key, a.value, b.key, b.value, c.key, c.value;
'Explain'
'ABSTRACT SYNTAX TREE:'
'  (TOK_QUERY (TOK_FROM (TOK_JOIN (TOK_JOIN (TOK_TABREF (TOK_TABNAME myinput1) a) (TOK_TABREF (TOK_TABNAME myinput1) b) (AND (<=> (. (TOK_TABLE_OR_COL a) key) (. (TOK_TABLE_OR_COL b) value)) (= (. (TOK_TABLE_OR_COL a) value) (. (TOK_TABLE_OR_COL b) key)))) (TOK_TABREF (TOK_TABNAME myinput1) c) (AND (<=> (. (TOK_TABLE_OR_COL a) key) (. (TOK_TABLE_OR_COL c) key)) (= (. (TOK_TABLE_OR_COL a) value) (. (TOK_TABLE_OR_COL c) value))))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR TOK_ALLCOLREF)) (TOK_ORDERBY (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL a) key)) (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL a) value)) (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL b) key)) (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL b) value)) (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL c) key)) (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL c) value)))))'
''
'STAGE DEPENDENCIES:'
'  Stage-1 is a root stage'
'  Stage-2 depends on stages: Stage-1'
'  Stage-0 is a root stage'
''
'STAGE PLANS:'
'  Stage: Stage-1'
'    Map Reduce'
'      Alias -> Map Operator Tree:'
'        a '
'          TableScan'
'            alias: a'
'            Reduce Output Operator'
'              key expressions:'
'                    expr: key'
'                    type: int'
'                    expr: value'
'                    type: int'
'              sort order: ++'
'              Map-reduce partition columns:'
'                    expr: key'
'                    type: int'
'                    expr: value'
'                    type: int'
'              tag: 0'
'              value expressions:'
'                    expr: key'
'                    type: int'
'                    expr: value'
'                    type: int'
'        b '
'          TableScan'
'            alias: b'
'            Reduce Output Operator'
'              key expressions:'
'                    expr: value'
'                    type: int'
'                    expr: key'
'                    type: int'
'              sort order: ++'
'              Map-reduce partition columns:'
'                    expr: value'
'                    type: int'
'                    expr: key'
'                    type: int'
'              tag: 1'
'              value expressions:'
'                    expr: key'
'                    type: int'
'                    expr: value'
'                    type: int'
'        c '
'          TableScan'
'            alias: c'
'            Reduce Output Operator'
'              key expressions:'
'                    expr: key'
'                    type: int'
'                    expr: value'
'                    type: int'
'              sort order: ++'
'              Map-reduce partition columns:'
'                    expr: key'
'                    type: int'
'                    expr: value'
'                    type: int'
'              tag: 2'
'              value expressions:'
'                    expr: key'
'                    type: int'
'                    expr: value'
'                    type: int'
'      Reduce Operator Tree:'
'        Join Operator'
'          condition map:'
'               Inner Join 0 to 1'
'               Inner Join 0 to 2'
'          condition expressions:'
'            0 {VALUE._col0} {VALUE._col1}'
'            1 {VALUE._col0} {VALUE._col1}'
'            2 {VALUE._col0} {VALUE._col1}'
'          handleSkewJoin: false'
'          nullSafes: [true, false]'
'          outputColumnNames: _col0, _col1, _col4, _col5, _col8, _col9'
'          Select Operator'
'            expressions:'
'                  expr: _col0'
'                  type: int'
'                  expr: _col1'
'                  type: int'
'                  expr: _col4'
'                  type: int'
'                  expr: _col5'
'                  type: int'
'                  expr: _col8'
'                  type: int'
'                  expr: _col9'
'                  type: int'
'            outputColumnNames: _col0, _col1, _col2, _col3, _col4, _col5'
'            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-2'
'    Map Reduce'
'      Alias -> Map Operator Tree:'
'        file:!!{hive.exec.scratchdir}!! '
'            Reduce Output Operator'
'              key expressions:'
'                    expr: _col0'
'                    type: int'
'                    expr: _col1'
'                    type: int'
'                    expr: _col2'
'                    type: int'
'                    expr: _col3'
'                    type: int'
'                    expr: _col4'
'                    type: int'
'                    expr: _col5'
'                    type: int'
'              sort order: ++++++'
'              tag: -1'
'              value expressions:'
'                    expr: _col0'
'                    type: int'
'                    expr: _col1'
'                    type: int'
'                    expr: _col2'
'                    type: int'
'                    expr: _col3'
'                    type: int'
'                    expr: _col4'
'                    type: int'
'                    expr: _col5'
'                    type: int'
'      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'
''
''
156 rows selected 
>>>  select * from myinput1 a join myinput1 b on a.key<=>b.value AND a.value=b.key join myinput1 c on a.key<=>c.key AND a.value=c.value ORDER BY a.key, a.value, b.key, b.value, c.key, c.value;
'key','value','key','value','key','value'
'','10','10','','','10'
'100','100','100','100','100','100'
2 rows selected 
>>>  
>>>  explain select * from myinput1 a join myinput1 b on a.key<=>b.value AND a.value<=>b.key join myinput1 c on a.key<=>c.key AND a.value<=>c.value ORDER BY a.key, a.value, b.key, b.value, c.key, c.value;
'Explain'
'ABSTRACT SYNTAX TREE:'
'  (TOK_QUERY (TOK_FROM (TOK_JOIN (TOK_JOIN (TOK_TABREF (TOK_TABNAME myinput1) a) (TOK_TABREF (TOK_TABNAME myinput1) b) (AND (<=> (. (TOK_TABLE_OR_COL a) key) (. (TOK_TABLE_OR_COL b) value)) (<=> (. (TOK_TABLE_OR_COL a) value) (. (TOK_TABLE_OR_COL b) key)))) (TOK_TABREF (TOK_TABNAME myinput1) c) (AND (<=> (. (TOK_TABLE_OR_COL a) key) (. (TOK_TABLE_OR_COL c) key)) (<=> (. (TOK_TABLE_OR_COL a) value) (. (TOK_TABLE_OR_COL c) value))))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR TOK_ALLCOLREF)) (TOK_ORDERBY (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL a) key)) (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL a) value)) (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL b) key)) (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL b) value)) (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL c) key)) (TOK_TABSORTCOLNAMEASC (. (TOK_TABLE_OR_COL c) value)))))'
''
'STAGE DEPENDENCIES:'
'  Stage-1 is a root stage'
'  Stage-2 depends on stages: Stage-1'
'  Stage-0 is a root stage'
''
'STAGE PLANS:'
'  Stage: Stage-1'
'    Map Reduce'
'      Alias -> Map Operator Tree:'
'        a '
'          TableScan'
'            alias: a'
'            Reduce Output Operator'
'              key expressions:'
'                    expr: key'
'                    type: int'
'                    expr: value'
'                    type: int'
'              sort order: ++'
'              Map-reduce partition columns:'
'                    expr: key'
'                    type: int'
'                    expr: value'
'                    type: int'
'              tag: 0'
'              value expressions:'
'                    expr: key'
'                    type: int'
'                    expr: value'
'                    type: int'
'        b '
'          TableScan'
'            alias: b'
'            Reduce Output Operator'
'              key expressions:'
'                    expr: value'
'                    type: int'
'                    expr: key'
'                    type: int'
'              sort order: ++'
'              Map-reduce partition columns:'
'                    expr: value'
'                    type: int'
'                    expr: key'
'                    type: int'
'              tag: 1'
'              value expressions:'
'                    expr: key'
'                    type: int'
'                    expr: value'
'                    type: int'
'        c '
'          TableScan'
'            alias: c'
'            Reduce Output Operator'
'              key expressions:'
'                    expr: key'
'                    type: int'
'                    expr: value'
'                    type: int'
'              sort order: ++'
'              Map-reduce partition columns:'
'                    expr: key'
'                    type: int'
'                    expr: value'
'                    type: int'
'              tag: 2'
'              value expressions:'
'                    expr: key'
'                    type: int'
'                    expr: value'
'                    type: int'
'      Reduce Operator Tree:'
'        Join Operator'
'          condition map:'
'               Inner Join 0 to 1'
'               Inner Join 0 to 2'
'          condition expressions:'
'            0 {VALUE._col0} {VALUE._col1}'
'            1 {VALUE._col0} {VALUE._col1}'
'            2 {VALUE._col0} {VALUE._col1}'
'          handleSkewJoin: false'
'          nullSafes: [true, true]'
'          outputColumnNames: _col0, _col1, _col4, _col5, _col8, _col9'
'          Select Operator'
'            expressions:'
'                  expr: _col0'
'                  type: int'
'                  expr: _col1'
'                  type: int'
'                  expr: _col4'
'                  type: int'
'                  expr: _col5'
'                  type: int'
'                  expr: _col8'
'                  type: int'
'                  expr: _col9'
'                  type: int'
'            outputColumnNames: _col0, _col1, _col2, _col3, _col4, _col5'
'            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-2'
'    Map Reduce'
'      Alias -> Map Operator Tree:'
'        file:!!{hive.exec.scratchdir}!! '
'            Reduce Output Operator'
'              key expressions:'
'                    expr: _col0'
'                    type: int'
'                    expr: _col1'
'                    type: int'
'                    expr: _col2'
'                    type: int'
'                    expr: _col3'
'                    type: int'
'                    expr: _col4'
'                    type: int'
'                    expr: _col5'
'                    type: int'
'              sort order: ++++++'
'              tag: -1'
'              value expressions:'
'                    expr: _col0'
'                    type: int'
'                    expr: _col1'
'                    type: int'
'                    expr: _col2'
'                    type: int'
'                    expr: _col3'
'                    type: int'
'                    expr: _col4'
'                    type: int'
'                    expr: _col5'
'                    type: int'
'      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'
''
''
156 rows selected 
>>>  select * from myinput1 a join myinput1 b on a.key<=>b.value AND a.value<=>b.key join myinput1 c on a.key<=>c.key AND a.value<=>c.value ORDER BY a.key, a.value, b.key, b.value, c.key, c.value;
'key','value','key','value','key','value'
'','','','','',''
'','10','10','','','10'
'10','','','10','10',''
'100','100','100','100','100','100'
4 rows selected 
>>>  
>>>  -- outer joins
>>>  SELECT * FROM myinput1 a LEFT OUTER JOIN myinput1 b ON a.key<=>b.value ORDER BY a.key, a.value, b.key, b.value;
'key','value','key','value'
'','','',''
'','','10',''
'','','48',''
'','10','',''
'','10','10',''
'','10','48',''
'','35','',''
'','35','10',''
'','35','48',''
'10','','','10'
'48','','',''
'100','100','100','100'
12 rows selected 
>>>  SELECT * FROM myinput1 a RIGHT OUTER JOIN myinput1 b ON a.key<=>b.value ORDER BY a.key, a.value, b.key, b.value;
'key','value','key','value'
'','','',''
'','','','35'
'','','10',''
'','','48',''
'','10','',''
'','10','10',''
'','10','48',''
'','35','',''
'','35','10',''
'','35','48',''
'10','','','10'
'100','100','100','100'
12 rows selected 
>>>  SELECT * FROM myinput1 a FULL OUTER JOIN myinput1 b ON a.key<=>b.value ORDER BY a.key, a.value, b.key, b.value;
'key','value','key','value'
'','','',''
'','','','35'
'','','10',''
'','','48',''
'','10','',''
'','10','10',''
'','10','48',''
'','35','',''
'','35','10',''
'','35','48',''
'10','','','10'
'48','','',''
'100','100','100','100'
13 rows selected 
>>>  
>>>  -- map joins
>>>  SELECT /*+ MAPJOIN(a) */ * FROM myinput1 a JOIN myinput1 b ON a.key<=>b.value ORDER BY a.key, a.value, b.key, b.value;
'key','value','key','value'
'','','',''
'','','10',''
'','','48',''
'','10','',''
'','10','10',''
'','10','48',''
'','35','',''
'','35','10',''
'','35','48',''
'10','','','10'
'100','100','100','100'
11 rows selected 
>>>  SELECT /*+ MAPJOIN(b) */ * FROM myinput1 a JOIN myinput1 b ON a.key<=>b.value ORDER BY a.key, a.value, b.key, b.value;
'key','value','key','value'
'','','',''
'','','10',''
'','','48',''
'','10','',''
'','10','10',''
'','10','48',''
'','35','',''
'','35','10',''
'','35','48',''
'10','','','10'
'100','100','100','100'
11 rows selected 
>>>  
>>>  -- smbs
>>>  CREATE TABLE smb_input1(key int, value int) CLUSTERED BY (key) SORTED BY (key) INTO 2 BUCKETS;
No rows affected 
>>>  CREATE TABLE smb_input2(key int, value int) CLUSTERED BY (value) SORTED BY (value) INTO 2 BUCKETS;
No rows affected 
>>>  LOAD DATA LOCAL INPATH '../data/files/in8.txt' into table smb_input1;
No rows affected 
>>>  LOAD DATA LOCAL INPATH '../data/files/in9.txt' into table smb_input1;
No rows affected 
>>>  LOAD DATA LOCAL INPATH '../data/files/in8.txt' into table smb_input2;
No rows affected 
>>>  LOAD DATA LOCAL INPATH '../data/files/in9.txt' into table smb_input2;
No rows affected 
>>>  
>>>  SET hive.optimize.bucketmapJOIN = true;
No rows affected 
>>>  SET hive.optimize.bucketmapJOIN.sortedmerge = true;
No rows affected 
>>>  SET hive.input.format = org.apache.hadoop.hive.ql.io.BucketizedHiveInputFormat;
No rows affected 
>>>  
>>>  SELECT /*+ MAPJOIN(a) */ * FROM smb_input1 a JOIN smb_input1 b ON a.key <=> b.key ORDER BY a.key, a.value, b.key, b.value;
'key','value','key','value'
'','','',''
'','','',''
'','','',''
'','','',''
'','','','10'
'','','','10'
'','','','35'
'','','','35'
'','','','110'
'','','','110'
'','','','135'
'','','','135'
'','10','',''
'','10','',''
'','10','','10'
'','10','','35'
'','10','','110'
'','10','','135'
'','35','',''
'','35','',''
'','35','','10'
'','35','','35'
'','35','','110'
'','35','','135'
'','110','',''
'','110','',''
'','110','','10'
'','110','','35'
'','110','','110'
'','110','','135'
'','135','',''
'','135','',''
'','135','','10'
'','135','','35'
'','135','','110'
'','135','','135'
'10','','10',''
'48','','48',''
'100','100','100','100'
'110','','110',''
'148','','148',''
'200','200','200','200'
42 rows selected 
>>>  SELECT /*+ MAPJOIN(a) */ * FROM smb_input1 a JOIN smb_input1 b ON a.key <=> b.key AND a.value <=> b.value ORDER BY a.key, a.value, b.key, b.value;
'key','value','key','value'
'','','',''
'','','',''
'','','',''
'','','',''
'100','100','100','100'
'200','200','200','200'
6 rows selected 
>>>  SELECT /*+ MAPJOIN(a) */ * FROM smb_input1 a RIGHT OUTER JOIN smb_input1 b ON a.key <=> b.key ORDER BY a.key, a.value, b.key, b.value;
'key','value','key','value'
'','','',''
'','','',''
'','','',''
'','','',''
'','','','10'
'','','','10'
'','','','35'
'','','','35'
'','','','110'
'','','','110'
'','','','135'
'','','','135'
'','10','',''
'','10','',''
'','10','','10'
'','10','','35'
'','10','','110'
'','10','','135'
'','35','',''
'','35','',''
'','35','','10'
'','35','','35'
'','35','','110'
'','35','','135'
'','110','',''
'','110','',''
'','110','','10'
'','110','','35'
'','110','','110'
'','110','','135'
'','135','',''
'','135','',''
'','135','','10'
'','135','','35'
'','135','','110'
'','135','','135'
'10','','10',''
'48','','48',''
'100','100','100','100'
'110','','110',''
'148','','148',''
'200','200','200','200'
42 rows selected 
>>>  SELECT /*+ MAPJOIN(b) */ * FROM smb_input1 a JOIN smb_input1 b ON a.key <=> b.key ORDER BY a.key, a.value, b.key, b.value;
'key','value','key','value'
'','','',''
'','','',''
'','','',''
'','','',''
'','','','10'
'','','','10'
'','','','35'
'','','','35'
'','','','110'
'','','','110'
'','','','135'
'','','','135'
'','10','',''
'','10','',''
'','10','','10'
'','10','','35'
'','10','','110'
'','10','','135'
'','35','',''
'','35','',''
'','35','','10'
'','35','','35'
'','35','','110'
'','35','','135'
'','110','',''
'','110','',''
'','110','','10'
'','110','','35'
'','110','','110'
'','110','','135'
'','135','',''
'','135','',''
'','135','','10'
'','135','','35'
'','135','','110'
'','135','','135'
'10','','10',''
'48','','48',''
'100','100','100','100'
'110','','110',''
'148','','148',''
'200','200','200','200'
42 rows selected 
>>>  SELECT /*+ MAPJOIN(b) */ * FROM smb_input1 a LEFT OUTER JOIN smb_input1 b ON a.key <=> b.key ORDER BY a.key, a.value, b.key, b.value;
'key','value','key','value'
'','','',''
'','','',''
'','','',''
'','','',''
'','','','10'
'','','','10'
'','','','35'
'','','','35'
'','','','110'
'','','','110'
'','','','135'
'','','','135'
'','10','',''
'','10','',''
'','10','','10'
'','10','','35'
'','10','','110'
'','10','','135'
'','35','',''
'','35','',''
'','35','','10'
'','35','','35'
'','35','','110'
'','35','','135'
'','110','',''
'','110','',''
'','110','','10'
'','110','','35'
'','110','','110'
'','110','','135'
'','135','',''
'','135','',''
'','135','','10'
'','135','','35'
'','135','','110'
'','135','','135'
'10','','10',''
'48','','48',''
'100','100','100','100'
'110','','110',''
'148','','148',''
'200','200','200','200'
42 rows selected 
>>>  
>>>  SELECT /*+ MAPJOIN(a) */ * FROM smb_input1 a JOIN smb_input2 b ON a.key <=> b.value ORDER BY a.key, a.value, b.key, b.value;
'key','value','key','value'
'','','',''
'','','',''
'','','',''
'','','',''
'','','10',''
'','','10',''
'','','48',''
'','','48',''
'','','110',''
'','','110',''
'','','148',''
'','','148',''
'','10','',''
'','10','',''
'','10','10',''
'','10','48',''
'','10','110',''
'','10','148',''
'','35','',''
'','35','',''
'','35','10',''
'','35','48',''
'','35','110',''
'','35','148',''
'','110','',''
'','110','',''
'','110','10',''
'','110','48',''
'','110','110',''
'','110','148',''
'','135','',''
'','135','',''
'','135','10',''
'','135','48',''
'','135','110',''
'','135','148',''
'10','','','10'
'100','100','100','100'
'110','','','110'
'200','200','200','200'
40 rows selected 
>>>  SELECT /*+ MAPJOIN(b) */ * FROM smb_input1 a JOIN smb_input2 b ON a.key <=> b.value ORDER BY a.key, a.value, b.key, b.value;
'key','value','key','value'
'','','',''
'','','',''
'','','',''
'','','',''
'','','10',''
'','','10',''
'','','48',''
'','','48',''
'','','110',''
'','','110',''
'','','148',''
'','','148',''
'','10','',''
'','10','',''
'','10','10',''
'','10','48',''
'','10','110',''
'','10','148',''
'','35','',''
'','35','',''
'','35','10',''
'','35','48',''
'','35','110',''
'','35','148',''
'','110','',''
'','110','',''
'','110','10',''
'','110','48',''
'','110','110',''
'','110','148',''
'','135','',''
'','135','',''
'','135','10',''
'','135','48',''
'','135','110',''
'','135','148',''
'10','','','10'
'100','100','100','100'
'110','','','110'
'200','200','200','200'
40 rows selected 
>>>  SELECT /*+ MAPJOIN(b) */ * FROM smb_input1 a LEFT OUTER JOIN smb_input2 b ON a.key <=> b.value ORDER BY a.key, a.value, b.key, b.value;
'key','value','key','value'
'','','',''
'','','',''
'','','',''
'','','',''
'','','10',''
'','','10',''
'','','48',''
'','','48',''
'','','110',''
'','','110',''
'','','148',''
'','','148',''
'','10','',''
'','10','',''
'','10','10',''
'','10','48',''
'','10','110',''
'','10','148',''
'','35','',''
'','35','',''
'','35','10',''
'','35','48',''
'','35','110',''
'','35','148',''
'','110','',''
'','110','',''
'','110','10',''
'','110','48',''
'','110','110',''
'','110','148',''
'','135','',''
'','135','',''
'','135','10',''
'','135','48',''
'','135','110',''
'','135','148',''
'10','','','10'
'48','','',''
'100','100','100','100'
'110','','','110'
'148','','',''
'200','200','200','200'
42 rows selected 
>>>  SELECT /*+ MAPJOIN(a) */ * FROM smb_input1 a RIGHT OUTER JOIN smb_input2 b ON a.key <=> b.value ORDER BY a.key, a.value, b.key, b.value;
'key','value','key','value'
'','','',''
'','','',''
'','','',''
'','','',''
'','','','35'
'','','','135'
'','','10',''
'','','10',''
'','','48',''
'','','48',''
'','','110',''
'','','110',''
'','','148',''
'','','148',''
'','10','',''
'','10','',''
'','10','10',''
'','10','48',''
'','10','110',''
'','10','148',''
'','35','',''
'','35','',''
'','35','10',''
'','35','48',''
'','35','110',''
'','35','148',''
'','110','',''
'','110','',''
'','110','10',''
'','110','48',''
'','110','110',''
'','110','148',''
'','135','',''
'','135','',''
'','135','10',''
'','135','48',''
'','135','110',''
'','135','148',''
'10','','','10'
'100','100','100','100'
'110','','','110'
'200','200','200','200'
42 rows selected 
>>>  
>>>  SELECT /*+ MAPJOIN(a) */ * FROM smb_input2 a JOIN smb_input2 b ON a.value <=> b.value ORDER BY a.key, a.value, b.key, b.value;
'key','value','key','value'
'','','',''
'','','',''
'','','',''
'','','',''
'','','10',''
'','','10',''
'','','48',''
'','','48',''
'','','110',''
'','','110',''
'','','148',''
'','','148',''
'','10','','10'
'','35','','35'
'','110','','110'
'','135','','135'
'10','','',''
'10','','',''
'10','','10',''
'10','','48',''
'10','','110',''
'10','','148',''
'48','','',''
'48','','',''
'48','','10',''
'48','','48',''
'48','','110',''
'48','','148',''
'100','100','100','100'
'110','','',''
'110','','',''
'110','','10',''
'110','','48',''
'110','','110',''
'110','','148',''
'148','','',''
'148','','',''
'148','','10',''
'148','','48',''
'148','','110',''
'148','','148',''
'200','200','200','200'
42 rows selected 
>>>  SELECT /*+ MAPJOIN(a) */ * FROM smb_input2 a RIGHT OUTER JOIN smb_input2 b ON a.value <=> b.value ORDER BY a.key, a.value, b.key, b.value;
'key','value','key','value'
'','','',''
'','','',''
'','','',''
'','','',''
'','','10',''
'','','10',''
'','','48',''
'','','48',''
'','','110',''
'','','110',''
'','','148',''
'','','148',''
'','10','','10'
'','35','','35'
'','110','','110'
'','135','','135'
'10','','',''
'10','','',''
'10','','10',''
'10','','48',''
'10','','110',''
'10','','148',''
'48','','',''
'48','','',''
'48','','10',''
'48','','48',''
'48','','110',''
'48','','148',''
'100','100','100','100'
'110','','',''
'110','','',''
'110','','10',''
'110','','48',''
'110','','110',''
'110','','148',''
'148','','',''
'148','','',''
'148','','10',''
'148','','48',''
'148','','110',''
'148','','148',''
'200','200','200','200'
42 rows selected 
>>>  SELECT /*+ MAPJOIN(b) */ * FROM smb_input2 a JOIN smb_input2 b ON a.value <=> b.value ORDER BY a.key, a.value, b.key, b.value;
'key','value','key','value'
'','','',''
'','','',''
'','','',''
'','','',''
'','','10',''
'','','10',''
'','','48',''
'','','48',''
'','','110',''
'','','110',''
'','','148',''
'','','148',''
'','10','','10'
'','35','','35'
'','110','','110'
'','135','','135'
'10','','',''
'10','','',''
'10','','10',''
'10','','48',''
'10','','110',''
'10','','148',''
'48','','',''
'48','','',''
'48','','10',''
'48','','48',''
'48','','110',''
'48','','148',''
'100','100','100','100'
'110','','',''
'110','','',''
'110','','10',''
'110','','48',''
'110','','110',''
'110','','148',''
'148','','',''
'148','','',''
'148','','10',''
'148','','48',''
'148','','110',''
'148','','148',''
'200','200','200','200'
42 rows selected 
>>>  SELECT /*+ MAPJOIN(b) */ * FROM smb_input2 a LEFT OUTER JOIN smb_input2 b ON a.value <=> b.value ORDER BY a.key, a.value, b.key, b.value;
'key','value','key','value'
'','','',''
'','','',''
'','','',''
'','','',''
'','','10',''
'','','10',''
'','','48',''
'','','48',''
'','','110',''
'','','110',''
'','','148',''
'','','148',''
'','10','','10'
'','35','','35'
'','110','','110'
'','135','','135'
'10','','',''
'10','','',''
'10','','10',''
'10','','48',''
'10','','110',''
'10','','148',''
'48','','',''
'48','','',''
'48','','10',''
'48','','48',''
'48','','110',''
'48','','148',''
'100','100','100','100'
'110','','',''
'110','','',''
'110','','10',''
'110','','48',''
'110','','110',''
'110','','148',''
'148','','',''
'148','','',''
'148','','10',''
'148','','48',''
'148','','110',''
'148','','148',''
'200','200','200','200'
42 rows selected 
>>>  
>>>  --HIVE-3315 join predicate transitive
>>>  explain select * from myinput1 a join myinput1 b on a.key<=>b.value AND a.key is NULL;
'Explain'
'ABSTRACT SYNTAX TREE:'
'  (TOK_QUERY (TOK_FROM (TOK_JOIN (TOK_TABREF (TOK_TABNAME myinput1) a) (TOK_TABREF (TOK_TABNAME myinput1) b) (AND (<=> (. (TOK_TABLE_OR_COL a) key) (. (TOK_TABLE_OR_COL b) value)) (TOK_FUNCTION TOK_ISNULL (. (TOK_TABLE_OR_COL a) key))))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR TOK_ALLCOLREF))))'
''
'STAGE DEPENDENCIES:'
'  Stage-1 is a root stage'
'  Stage-0 is a root stage'
''
'STAGE PLANS:'
'  Stage: Stage-1'
'    Map Reduce'
'      Alias -> Map Operator Tree:'
'        a '
'          TableScan'
'            alias: a'
'            Filter Operator'
'              predicate:'
'                  expr: key is null'
'                  type: boolean'
'              Reduce Output Operator'
'                key expressions:'
'                      expr: key'
'                      type: int'
'                sort order: +'
'                Map-reduce partition columns:'
'                      expr: key'
'                      type: int'
'                tag: 0'
'                value expressions:'
'                      expr: key'
'                      type: int'
'                      expr: value'
'                      type: int'
'        b '
'          TableScan'
'            alias: b'
'            Filter Operator'
'              predicate:'
'                  expr: value is null'
'                  type: boolean'
'              Reduce Output Operator'
'                key expressions:'
'                      expr: value'
'                      type: int'
'                sort order: +'
'                Map-reduce partition columns:'
'                      expr: value'
'                      type: int'
'                tag: 1'
'                value expressions:'
'                      expr: key'
'                      type: int'
'                      expr: value'
'                      type: int'
'      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'
'          nullSafes: [true]'
'          outputColumnNames: _col0, _col1, _col4, _col5'
'          Select Operator'
'            expressions:'
'                  expr: _col0'
'                  type: int'
'                  expr: _col1'
'                  type: int'
'                  expr: _col4'
'                  type: int'
'                  expr: _col5'
'                  type: int'
'            outputColumnNames: _col0, _col1, _col2, _col3'
'            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'
''
''
86 rows selected 
>>>  select * from myinput1 a join myinput1 b on a.key<=>b.value AND a.key is NULL;
'key','value','key','value'
'','','',''
'','','10',''
'','','48',''
'','10','',''
'','10','10',''
'','10','48',''
'','35','',''
'','35','10',''
'','35','48',''
9 rows selected 
>>>  !record