PREHOOK: query: -- no input pruning, sample filter
EXPLAIN
SELECT s.key
FROM srcbucket TABLESAMPLE (BUCKET 1 OUT OF 5 on key) s
PREHOOK: type: QUERY
POSTHOOK: query: -- no input pruning, sample filter
EXPLAIN
SELECT s.key
FROM srcbucket TABLESAMPLE (BUCKET 1 OUT OF 5 on key) s
POSTHOOK: type: QUERY
ABSTRACT SYNTAX TREE:
  (TOK_QUERY (TOK_FROM (TOK_TABREF srcbucket (TOK_TABLESAMPLE 1 5 (TOK_TABLE_OR_COL key)) s)) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (. (TOK_TABLE_OR_COL s) key)))))

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:
        s 
          TableScan
            alias: s
            Filter Operator
              predicate:
                  expr: (((hash(key) & 2147483647) % 5) = 0)
                  type: boolean
              Filter Operator
                predicate:
                    expr: (((hash(key) & 2147483647) % 5) = 0)
                    type: boolean
                Select Operator
                  expressions:
                        expr: key
                        type: int
                  outputColumnNames: _col0
                  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 s.key
FROM srcbucket TABLESAMPLE (BUCKET 1 OUT OF 5 on key) s SORT BY key
PREHOOK: type: QUERY
PREHOOK: Input: default@srcbucket
PREHOOK: Output: file:/data/users/njain/hive5/hive5/build/ql/tmp/1351290542/10000
POSTHOOK: query: SELECT s.key
FROM srcbucket TABLESAMPLE (BUCKET 1 OUT OF 5 on key) s SORT BY key
POSTHOOK: type: QUERY
POSTHOOK: Input: default@srcbucket
POSTHOOK: Output: file:/data/users/njain/hive5/hive5/build/ql/tmp/1351290542/10000
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