PREHOOK: query: DESCRIBE FUNCTION ascii
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION ascii
POSTHOOK: type: DESCFUNCTION
ascii(str) - returns the numeric value of the first character of str
PREHOOK: query: DESCRIBE FUNCTION EXTENDED ascii
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION EXTENDED ascii
POSTHOOK: type: DESCFUNCTION
ascii(str) - returns the numeric value of the first character of str
Returns 0 if str is empty or NULL if str is NULL
Example:
  > SELECT ascii('222') FROM src LIMIT 1;  50
  > SELECT ascii(2) FROM src LIMIT 1;
  50
PREHOOK: query: EXPLAIN SELECT
  ascii('Facebook'),
  ascii(''),
  ascii('!')
FROM src LIMIT 1
PREHOOK: type: QUERY
POSTHOOK: query: EXPLAIN SELECT
  ascii('Facebook'),
  ascii(''),
  ascii('!')
FROM src LIMIT 1
POSTHOOK: type: QUERY
ABSTRACT SYNTAX TREE:
  (TOK_QUERY (TOK_FROM (TOK_TABREF (TOK_TABNAME src))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION ascii 'Facebook')) (TOK_SELEXPR (TOK_FUNCTION ascii '')) (TOK_SELEXPR (TOK_FUNCTION ascii '!'))) (TOK_LIMIT 1)))

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: ascii('Facebook')
                    type: int
                    expr: ascii('')
                    type: int
                    expr: ascii('!')
                    type: int
              outputColumnNames: _col0, _col1, _col2
              Limit
                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
  ascii('Facebook'),
  ascii(''),
  ascii('!')
FROM src LIMIT 1
PREHOOK: type: QUERY
PREHOOK: Input: default@src
PREHOOK: Output: file:/tmp/sdong/hive_2011-02-10_17-30-24_162_6746865674356891089/-mr-10000
POSTHOOK: query: SELECT
  ascii('Facebook'),
  ascii(''),
  ascii('!')
FROM src LIMIT 1
POSTHOOK: type: QUERY
POSTHOOK: Input: default@src
POSTHOOK: Output: file:/tmp/sdong/hive_2011-02-10_17-30-24_162_6746865674356891089/-mr-10000
70	0	33