query: EXPLAIN
CREATE TEMPORARY FUNCTION test_avg AS 'org.apache.hadoop.hive.ql.udf.generic.GenericUDAFAverage'
ABSTRACT SYNTAX TREE:
  (TOK_CREATEFUNCTION test_avg 'org.apache.hadoop.hive.ql.udf.generic.GenericUDAFAverage')

STAGE DEPENDENCIES:
  Stage-0 is a root stage

STAGE PLANS:
  Stage: Stage-0


query: CREATE TEMPORARY FUNCTION test_avg AS 'org.apache.hadoop.hive.ql.udf.generic.GenericUDAFAverage'
query: EXPLAIN
SELECT
    test_avg(1),
    test_avg(substr(value,5))
FROM src
ABSTRACT SYNTAX TREE:
  (TOK_QUERY (TOK_FROM (TOK_TABREF src)) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION test_avg 1)) (TOK_SELEXPR (TOK_FUNCTION test_avg (TOK_FUNCTION substr (TOK_TABLE_OR_COL value) 5))))))

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:
        src 
          TableScan
            alias: src
            Select Operator
              expressions:
                    expr: value
                    type: string
              outputColumnNames: value
              Group By Operator
                aggregations:
                      expr: test_avg(1)
                      expr: test_avg(substr(value, 5))
                mode: hash
                outputColumnNames: _col0, _col1
                Reduce Output Operator
                  sort order: 
                  tag: -1
                  value expressions:
                        expr: _col0
                        type: struct<count:bigint,sum:double>
                        expr: _col1
                        type: struct<count:bigint,sum:double>
      Reduce Operator Tree:
        Group By Operator
          aggregations:
                expr: test_avg(VALUE._col0)
                expr: test_avg(VALUE._col1)
          mode: mergepartial
          outputColumnNames: _col0, _col1
          Select Operator
            expressions:
                  expr: _col0
                  type: double
                  expr: _col1
                  type: double
            outputColumnNames: _col0, _col1
            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
    test_avg(1),
    test_avg(substr(value,5))
FROM src
Input: default/src
Output: file:/data/users/athusoo/commits/hive_trunk_ws1/build/ql/tmp/1700649603/10000
1.0	260.182
query: DROP TEMPORARY FUNCTIOn test_avg