query: CREATE TABLE dest1(key INT, value STRING) STORED AS TEXTFILE
query: EXPLAIN
FROM src
INSERT OVERWRITE TABLE dest1 SELECT src.key, src.value WHERE src.key < 100 LIMIT 10
ABSTRACT SYNTAX TREE:
  (TOK_QUERY (TOK_FROM (TOK_TABREF src)) (TOK_INSERT (TOK_DESTINATION (TOK_TAB dest1)) (TOK_SELECT (TOK_SELEXPR (. (TOK_TABLE_OR_COL src) key)) (TOK_SELEXPR (. (TOK_TABLE_OR_COL src) value))) (TOK_WHERE (< (. (TOK_TABLE_OR_COL src) key) 100)) (TOK_LIMIT 10)))

STAGE DEPENDENCIES:
  Stage-1 is a root stage
  Stage-0 depends on stages: Stage-1

STAGE PLANS:
  Stage: Stage-1
    Map Reduce
      Alias -> Map Operator Tree:
        src 
          TableScan
            alias: src
            Filter Operator
              predicate:
                  expr: (UDFToDouble(key) < UDFToDouble(100))
                  type: boolean
              Filter Operator
                predicate:
                    expr: (UDFToDouble(key) < UDFToDouble(100))
                    type: boolean
                Select Operator
                  expressions:
                        expr: key
                        type: string
                        expr: value
                        type: string
                  outputColumnNames: _col0, _col1
                  Limit
                    Reduce Output Operator
                      sort order: 
                      tag: -1
                      value expressions:
                            expr: _col0
                            type: string
                            expr: _col1
                            type: string
      Reduce Operator Tree:
        Extract
          Limit
            Select Operator
              expressions:
                    expr: UDFToInteger(_col0)
                    type: int
                    expr: _col1
                    type: string
              outputColumnNames: _col0, _col1
              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: dest1

  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: dest1


query: FROM src
INSERT OVERWRITE TABLE dest1 SELECT src.key, src.value WHERE src.key < 100 LIMIT 10
Input: default/src
Output: default/dest1
query: SELECT dest1.* FROM dest1
Input: default/dest1
Output: file:/data/users/athusoo/commits/hive_trunk_ws1/build/ql/tmp/1979379952/10000
86	val_86
27	val_27
98	val_98
66	val_66
37	val_37
15	val_15
82	val_82
17	val_17
0	val_0
57	val_57