Saving all output to "!!{outputDirectory}!!/union_lateralview.q.raw". Enter "record" with no arguments to stop it.
>>>  !run !!{qFileDirectory}!!/union_lateralview.q
>>>  
>>>  create table test_union_lateral_view(key int, arr_ele int, value string);
No rows affected 
>>>  
>>>  EXPLAIN 
INSERT OVERWRITE TABLE test_union_lateral_view 
SELECT b.key, d.arr_ele, d.value 
FROM ( 
SELECT c.arr_ele as arr_ele, a.key as key, a.value as value 
FROM ( 
SELECT key, value, array(1,2,3) as arr 
FROM src 
 
UNION ALL 
 
SELECT key, value, array(1,2,3) as arr 
FROM srcpart 
WHERE ds = '2008-04-08' and hr='12' 
) a LATERAL VIEW EXPLODE(arr) c AS arr_ele 
) d 
LEFT OUTER JOIN src b 
ON d.key = b.key 
;
'Explain'
'ABSTRACT SYNTAX TREE:'
'  (TOK_QUERY (TOK_FROM (TOK_LEFTOUTERJOIN (TOK_SUBQUERY (TOK_QUERY (TOK_FROM (TOK_LATERAL_VIEW (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION EXPLODE (TOK_TABLE_OR_COL arr)) arr_ele (TOK_TABALIAS c))) (TOK_SUBQUERY (TOK_UNION (TOK_QUERY (TOK_FROM (TOK_TABREF (TOK_TABNAME src))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_TABLE_OR_COL key)) (TOK_SELEXPR (TOK_TABLE_OR_COL value)) (TOK_SELEXPR (TOK_FUNCTION array 1 2 3) arr)))) (TOK_QUERY (TOK_FROM (TOK_TABREF (TOK_TABNAME srcpart))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_TABLE_OR_COL key)) (TOK_SELEXPR (TOK_TABLE_OR_COL value)) (TOK_SELEXPR (TOK_FUNCTION array 1 2 3) arr)) (TOK_WHERE (and (= (TOK_TABLE_OR_COL ds) '2008-04-08') (= (TOK_TABLE_OR_COL hr) '12')))))) a))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (. (TOK_TABLE_OR_COL c) arr_ele) arr_ele) (TOK_SELEXPR (. (TOK_TABLE_OR_COL a) key) key) (TOK_SELEXPR (. (TOK_TABLE_OR_COL a) value) value)))) d) (TOK_TABREF (TOK_TABNAME src) b) (= (. (TOK_TABLE_OR_COL d) key) (. (TOK_TABLE_OR_COL b) key)))) (TOK_INSERT (TOK_DESTINATION (TOK_TAB (TOK_TABNAME test_union_lateral_view))) (TOK_SELECT (TOK_SELEXPR (. (TOK_TABLE_OR_COL b) key)) (TOK_SELEXPR (. (TOK_TABLE_OR_COL d) arr_ele)) (TOK_SELEXPR (. (TOK_TABLE_OR_COL d) value)))))'
''
'STAGE DEPENDENCIES:'
'  Stage-1 is a root stage'
'  Stage-0 depends on stages: Stage-1'
'  Stage-2 depends on stages: Stage-0'
''
'STAGE PLANS:'
'  Stage: Stage-1'
'    Map Reduce'
'      Alias -> Map Operator Tree:'
'        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'
'        d-subquery1:a-subquery1:src '
'          TableScan'
'            alias: src'
'            Select Operator'
'              expressions:'
'                    expr: key'
'                    type: string'
'                    expr: value'
'                    type: string'
'                    expr: array(1,2,3)'
'                    type: array<int>'
'              outputColumnNames: _col0, _col1, _col2'
'              Union'
'                Lateral View Forward'
'                  Select Operator'
'                    expressions:'
'                          expr: _col0'
'                          type: string'
'                          expr: _col1'
'                          type: string'
'                    outputColumnNames: _col0, _col1'
'                    Lateral View Join Operator'
'                      outputColumnNames: _col0, _col1, _col3'
'                      Select Operator'
'                        expressions:'
'                              expr: _col3'
'                              type: int'
'                              expr: _col0'
'                              type: string'
'                              expr: _col1'
'                              type: string'
'                        outputColumnNames: _col0, _col1, _col2'
'                        Reduce Output Operator'
'                          key expressions:'
'                                expr: _col1'
'                                type: string'
'                          sort order: +'
'                          Map-reduce partition columns:'
'                                expr: _col1'
'                                type: string'
'                          tag: 0'
'                          value expressions:'
'                                expr: _col0'
'                                type: int'
'                                expr: _col2'
'                                type: string'
'                  Select Operator'
'                    expressions:'
'                          expr: _col2'
'                          type: array<int>'
'                    outputColumnNames: _col0'
'                    UDTF Operator'
'                      function name: explode'
'                      Lateral View Join Operator'
'                        outputColumnNames: _col0, _col1, _col3'
'                        Select Operator'
'                          expressions:'
'                                expr: _col3'
'                                type: int'
'                                expr: _col0'
'                                type: string'
'                                expr: _col1'
'                                type: string'
'                          outputColumnNames: _col0, _col1, _col2'
'                          Reduce Output Operator'
'                            key expressions:'
'                                  expr: _col1'
'                                  type: string'
'                            sort order: +'
'                            Map-reduce partition columns:'
'                                  expr: _col1'
'                                  type: string'
'                            tag: 0'
'                            value expressions:'
'                                  expr: _col0'
'                                  type: int'
'                                  expr: _col2'
'                                  type: string'
'        d-subquery2:a-subquery2:srcpart '
'          TableScan'
'            alias: srcpart'
'            Select Operator'
'              expressions:'
'                    expr: key'
'                    type: string'
'                    expr: value'
'                    type: string'
'                    expr: array(1,2,3)'
'                    type: array<int>'
'              outputColumnNames: _col0, _col1, _col2'
'              Union'
'                Lateral View Forward'
'                  Select Operator'
'                    expressions:'
'                          expr: _col0'
'                          type: string'
'                          expr: _col1'
'                          type: string'
'                    outputColumnNames: _col0, _col1'
'                    Lateral View Join Operator'
'                      outputColumnNames: _col0, _col1, _col3'
'                      Select Operator'
'                        expressions:'
'                              expr: _col3'
'                              type: int'
'                              expr: _col0'
'                              type: string'
'                              expr: _col1'
'                              type: string'
'                        outputColumnNames: _col0, _col1, _col2'
'                        Reduce Output Operator'
'                          key expressions:'
'                                expr: _col1'
'                                type: string'
'                          sort order: +'
'                          Map-reduce partition columns:'
'                                expr: _col1'
'                                type: string'
'                          tag: 0'
'                          value expressions:'
'                                expr: _col0'
'                                type: int'
'                                expr: _col2'
'                                type: string'
'                  Select Operator'
'                    expressions:'
'                          expr: _col2'
'                          type: array<int>'
'                    outputColumnNames: _col0'
'                    UDTF Operator'
'                      function name: explode'
'                      Lateral View Join Operator'
'                        outputColumnNames: _col0, _col1, _col3'
'                        Select Operator'
'                          expressions:'
'                                expr: _col3'
'                                type: int'
'                                expr: _col0'
'                                type: string'
'                                expr: _col1'
'                                type: string'
'                          outputColumnNames: _col0, _col1, _col2'
'                          Reduce Output Operator'
'                            key expressions:'
'                                  expr: _col1'
'                                  type: string'
'                            sort order: +'
'                            Map-reduce partition columns:'
'                                  expr: _col1'
'                                  type: string'
'                            tag: 0'
'                            value expressions:'
'                                  expr: _col0'
'                                  type: int'
'                                  expr: _col2'
'                                  type: string'
'      Reduce Operator Tree:'
'        Join Operator'
'          condition map:'
'               Left Outer Join0 to 1'
'          condition expressions:'
'            0 {VALUE._col0} {VALUE._col2}'
'            1 {VALUE._col0}'
'          handleSkewJoin: false'
'          outputColumnNames: _col0, _col2, _col3'
'          Select Operator'
'            expressions:'
'                  expr: _col3'
'                  type: string'
'                  expr: _col0'
'                  type: int'
'                  expr: _col2'
'                  type: string'
'            outputColumnNames: _col0, _col1, _col2'
'            Select Operator'
'              expressions:'
'                    expr: UDFToInteger(_col0)'
'                    type: int'
'                    expr: _col1'
'                    type: int'
'                    expr: _col2'
'                    type: string'
'              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: union_lateralview.test_union_lateral_view'
''
'  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: union_lateralview.test_union_lateral_view'
''
'  Stage: Stage-2'
'    Stats-Aggr Operator'
''
''
233 rows selected 
>>>  
>>>  INSERT OVERWRITE TABLE test_union_lateral_view 
SELECT b.key, d.arr_ele, d.value 
FROM ( 
SELECT c.arr_ele as arr_ele, a.key as key, a.value as value 
FROM ( 
SELECT key, value, array(1,2,3) as arr 
FROM src 
 
UNION ALL 
 
SELECT key, value, array(1,2,3) as arr 
FROM srcpart 
WHERE ds = '2008-04-08' and hr='12' 
) a LATERAL VIEW EXPLODE(arr) c AS arr_ele 
) d 
LEFT OUTER JOIN src b 
ON d.key = b.key 
;
'_col0','_col1','_col2'
No rows selected 
>>>  
>>>  select key, arr_ele, value from test_union_lateral_view order by key, arr_ele limit 20;
'key','arr_ele','value'
'0','1','val_0'
'0','1','val_0'
'0','1','val_0'
'0','1','val_0'
'0','1','val_0'
'0','1','val_0'
'0','1','val_0'
'0','1','val_0'
'0','1','val_0'
'0','1','val_0'
'0','1','val_0'
'0','1','val_0'
'0','1','val_0'
'0','1','val_0'
'0','1','val_0'
'0','1','val_0'
'0','1','val_0'
'0','1','val_0'
'0','2','val_0'
'0','2','val_0'
20 rows selected 
>>>  !record