query: CREATE TABLE dest1(c1 STRING) STORED AS TEXTFILE
query: FROM src INSERT OVERWRITE TABLE dest1 SELECT '' WHERE src.key = 86
Input: default/src
Output: default/dest1
query: FROM src INSERT OVERWRITE TABLE dest1 SELECT '1' WHERE src.key = 86
Input: default/src
Output: default/dest1
query: EXPLAIN
SELECT avg(c1), sum(c1), count(c1) FROM dest1
ABSTRACT SYNTAX TREE:
  (TOK_QUERY (TOK_FROM (TOK_TABREF dest1)) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION avg (TOK_TABLE_OR_COL c1))) (TOK_SELEXPR (TOK_FUNCTION sum (TOK_TABLE_OR_COL c1))) (TOK_SELEXPR (TOK_FUNCTION count (TOK_TABLE_OR_COL c1))))))

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:
        dest1 
          TableScan
            alias: dest1
            Select Operator
              expressions:
                    expr: c1
                    type: string
              outputColumnNames: c1
              Group By Operator
                aggregations:
                      expr: avg(c1)
                      expr: sum(c1)
                      expr: count(c1)
                mode: hash
                outputColumnNames: _col0, _col1, _col2
                Reduce Output Operator
                  sort order: 
                  tag: -1
                  value expressions:
                        expr: _col0
                        type: struct<count:bigint,sum:double>
                        expr: _col1
                        type: double
                        expr: _col2
                        type: bigint
      Reduce Operator Tree:
        Group By Operator
          aggregations:
                expr: avg(VALUE._col0)
                expr: sum(VALUE._col1)
                expr: count(VALUE._col2)
          mode: mergepartial
          outputColumnNames: _col0, _col1, _col2
          Select Operator
            expressions:
                  expr: _col0
                  type: double
                  expr: _col1
                  type: double
                  expr: _col2
                  type: bigint
            outputColumnNames: _col0, _col1, _col2
            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


query: SELECT avg(c1), sum(c1), count(c1) FROM dest1
Input: default/dest1
Output: file:/data/users/athusoo/commits/hive_trunk_ws1/build/ql/tmp/562771433/10000
1.0	1.0	1