PREHOOK: query: EXPLAIN
SELECT CASE a.key
        WHEN '1' THEN 2
        WHEN '3' THEN 4
        ELSE 5
       END as key
FROM src a JOIN src b
ON a.key = b.key
ORDER BY key LIMIT 10
PREHOOK: type: QUERY
POSTHOOK: query: EXPLAIN
SELECT CASE a.key
        WHEN '1' THEN 2
        WHEN '3' THEN 4
        ELSE 5
       END as key
FROM src a JOIN src b
ON a.key = b.key
ORDER BY key LIMIT 10
POSTHOOK: type: QUERY
ABSTRACT SYNTAX TREE:
  (TOK_QUERY (TOK_FROM (TOK_JOIN (TOK_TABREF src a) (TOK_TABREF src b) (= (. (TOK_TABLE_OR_COL a) key) (. (TOK_TABLE_OR_COL b) key)))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION CASE (. (TOK_TABLE_OR_COL a) key) '1' 2 '3' 4 5) key)) (TOK_ORDERBY (TOK_TABSORTCOLNAMEASC (TOK_TABLE_OR_COL key))) (TOK_LIMIT 10)))

STAGE DEPENDENCIES:
  Stage-1 is a root stage
  Stage-2 depends on stages: Stage-1
  Stage-0 is a root stage

STAGE PLANS:
  Stage: Stage-1
    Map Reduce
      Alias -> Map Operator Tree:
        a 
          TableScan
            alias: a
            Reduce Output Operator
              key expressions:
                    expr: key
                    type: string
              sort order: +
              Map-reduce partition columns:
                    expr: key
                    type: string
              tag: 0
              value expressions:
                    expr: key
                    type: string
        b 
          TableScan
            alias: b
            Reduce Output Operator
              key expressions:
                    expr: key
                    type: string
              sort order: +
              Map-reduce partition columns:
                    expr: key
                    type: string
              tag: 1
      Reduce Operator Tree:
        Join Operator
          condition map:
               Inner Join 0 to 1
          condition expressions:
            0 {VALUE._col0}
            1 
          handleSkewJoin: false
          outputColumnNames: _col0
          Select Operator
            expressions:
                  expr: CASE (_col0) WHEN ('1') THEN (2) WHEN ('3') THEN (4) ELSE (5) END
                  type: int
            outputColumnNames: _col0
            File Output Operator
              compressed: false
              GlobalTableId: 0
              table:
                  input format: org.apache.hadoop.mapred.SequenceFileInputFormat
                  output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat

  Stage: Stage-2
    Map Reduce
      Alias -> Map Operator Tree:
        file:/data/users/zshao/hadoop_hive_trunk2/.ptest_0/build/ql/scratchdir/hive_2010-02-12_22-40-56_328_3918398179294085207/10002 
            Reduce Output Operator
              key expressions:
                    expr: _col0
                    type: int
              sort order: +
              tag: -1
              value expressions:
                    expr: _col0
                    type: int
      Reduce Operator Tree:
        Extract
          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: 10


PREHOOK: query: SELECT CASE a.key
        WHEN '1' THEN 2
        WHEN '3' THEN 4
        ELSE 5
       END as key
FROM src a JOIN src b
ON a.key = b.key
ORDER BY key LIMIT 10
PREHOOK: type: QUERY
PREHOOK: Input: default@src
PREHOOK: Output: file:/data/users/zshao/hadoop_hive_trunk2/.ptest_0/build/ql/scratchdir/hive_2010-02-12_22-40-56_386_3460624776357253178/10000
POSTHOOK: query: SELECT CASE a.key
        WHEN '1' THEN 2
        WHEN '3' THEN 4
        ELSE 5
       END as key
FROM src a JOIN src b
ON a.key = b.key
ORDER BY key LIMIT 10
POSTHOOK: type: QUERY
POSTHOOK: Input: default@src
POSTHOOK: Output: file:/data/users/zshao/hadoop_hive_trunk2/.ptest_0/build/ql/scratchdir/hive_2010-02-12_22-40-56_386_3460624776357253178/10000
5
5
5
5
5
5
5
5
5
5