PREHOOK: query: DESCRIBE FUNCTION repeat
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION repeat
POSTHOOK: type: DESCFUNCTION
repeat(str, n) - repeat str n times 
PREHOOK: query: DESCRIBE FUNCTION EXTENDED repeat
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION EXTENDED repeat
POSTHOOK: type: DESCFUNCTION
repeat(str, n) - repeat str n times 
Example:
  > SELECT repeat('123', 2) FROM src LIMIT 1;
  '123123'
PREHOOK: query: EXPLAIN SELECT
  repeat("Facebook", 3),
  repeat("", 4),
  repeat("asd", 0),
  repeat("asdf", -1)
FROM src LIMIT 1
PREHOOK: type: QUERY
POSTHOOK: query: EXPLAIN SELECT
  repeat("Facebook", 3),
  repeat("", 4),
  repeat("asd", 0),
  repeat("asdf", -1)
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 repeat "Facebook" 3)) (TOK_SELEXPR (TOK_FUNCTION repeat "" 4)) (TOK_SELEXPR (TOK_FUNCTION repeat "asd" 0)) (TOK_SELEXPR (TOK_FUNCTION repeat "asdf" (- 1)))) (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: repeat('Facebook', 3)
                    type: string
                    expr: repeat('', 4)
                    type: string
                    expr: repeat('asd', 0)
                    type: string
                    expr: repeat('asdf', (- 1))
                    type: string
              outputColumnNames: _col0, _col1, _col2, _col3
              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
  repeat("Facebook", 3),
  repeat("", 4),
  repeat("asd", 0),
  repeat("asdf", -1)
FROM src LIMIT 1
PREHOOK: type: QUERY
PREHOOK: Input: default@src
PREHOOK: Output: file:/tmp/sdong/hive_2011-02-10_17-40-06_666_1593299454433613583/-mr-10000
POSTHOOK: query: SELECT
  repeat("Facebook", 3),
  repeat("", 4),
  repeat("asd", 0),
  repeat("asdf", -1)
FROM src LIMIT 1
POSTHOOK: type: QUERY
POSTHOOK: Input: default@src
POSTHOOK: Output: file:/tmp/sdong/hive_2011-02-10_17-40-06_666_1593299454433613583/-mr-10000
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