PREHOOK: query: CREATE TEMPORARY FUNCTION example_max AS 'org.apache.hadoop.hive.contrib.udaf.example.UDAFExampleMax'
PREHOOK: type: CREATEFUNCTION
POSTHOOK: query: CREATE TEMPORARY FUNCTION example_max AS 'org.apache.hadoop.hive.contrib.udaf.example.UDAFExampleMax'
POSTHOOK: type: CREATEFUNCTION
PREHOOK: query: DESCRIBE FUNCTION EXTENDED example_max
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION EXTENDED example_max
POSTHOOK: type: DESCFUNCTION
example_max(expr) - Returns the maximum value of expr
PREHOOK: query: EXPLAIN
SELECT example_max(substr(value,5)),
       example_max(IF(substr(value,5) > 250, NULL, substr(value,5)))
FROM src
PREHOOK: type: QUERY
POSTHOOK: query: EXPLAIN
SELECT example_max(substr(value,5)),
       example_max(IF(substr(value,5) > 250, NULL, substr(value,5)))
FROM src
POSTHOOK: type: QUERY
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 example_max (TOK_FUNCTION substr (TOK_TABLE_OR_COL value) 5))) (TOK_SELEXPR (TOK_FUNCTION example_max (TOK_FUNCTION IF (> (TOK_FUNCTION substr (TOK_TABLE_OR_COL value) 5) 250) TOK_NULL (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: example_max(substr(value, 5))
                      expr: example_max(if((substr(value, 5) > 250), null, substr(value, 5)))
                bucketGroup: false
                mode: hash
                outputColumnNames: _col0, _col1
                Reduce Output Operator
                  sort order: 
                  tag: -1
                  value expressions:
                        expr: _col0
                        type: string
                        expr: _col1
                        type: string
      Reduce Operator Tree:
        Group By Operator
          aggregations:
                expr: example_max(VALUE._col0)
                expr: example_max(VALUE._col1)
          bucketGroup: false
          mode: mergepartial
          outputColumnNames: _col0, _col1
          Select Operator
            expressions:
                  expr: _col0
                  type: string
                  expr: _col1
                  type: string
            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


PREHOOK: query: SELECT example_max(substr(value,5)),
       example_max(IF(substr(value,5) > 250, NULL, substr(value,5)))
FROM src
PREHOOK: type: QUERY
PREHOOK: Input: default@src
PREHOOK: Output: file:/data/users/zshao/hadoop_hive_trunk/build/contrib/scratchdir/hive_2010-02-03_16-15-04_638_1033240644659750207/10000
POSTHOOK: query: SELECT example_max(substr(value,5)),
       example_max(IF(substr(value,5) > 250, NULL, substr(value,5)))
FROM src
POSTHOOK: type: QUERY
POSTHOOK: Input: default@src
POSTHOOK: Output: file:/data/users/zshao/hadoop_hive_trunk/build/contrib/scratchdir/hive_2010-02-03_16-15-04_638_1033240644659750207/10000
98	98
PREHOOK: query: DROP TEMPORARY FUNCTION example_max
PREHOOK: type: DROPFUNCTION
POSTHOOK: query: DROP TEMPORARY FUNCTION example_max
POSTHOOK: type: DROPFUNCTION