PREHOOK: query: -- Test that the partition pruner does not fail when there is a constant expression in the filter

EXPLAIN SELECT COUNT(*) FROM srcpart WHERE ds = '2008-04-08' and 'a' = 'a'
PREHOOK: type: QUERY
POSTHOOK: query: -- Test that the partition pruner does not fail when there is a constant expression in the filter

EXPLAIN SELECT COUNT(*) FROM srcpart WHERE ds = '2008-04-08' and 'a' = 'a'
POSTHOOK: type: QUERY
ABSTRACT SYNTAX TREE:
  (TOK_QUERY (TOK_FROM (TOK_TABREF (TOK_TABNAME srcpart))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTIONSTAR COUNT))) (TOK_WHERE (and (= (TOK_TABLE_OR_COL ds) '2008-04-08') (= 'a' 'a')))))

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:
        srcpart 
          TableScan
            alias: srcpart
            Filter Operator
              predicate:
                  expr: ('a' = 'a')
                  type: boolean
              Select Operator
                Group By Operator
                  aggregations:
                        expr: count()
                  bucketGroup: false
                  mode: hash
                  outputColumnNames: _col0
                  Reduce Output Operator
                    sort order: 
                    tag: -1
                    value expressions:
                          expr: _col0
                          type: bigint
      Reduce Operator Tree:
        Group By Operator
          aggregations:
                expr: count(VALUE._col0)
          bucketGroup: false
          mode: mergepartial
          outputColumnNames: _col0
          Select Operator
            expressions:
                  expr: _col0
                  type: bigint
            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 COUNT(*) FROM srcpart WHERE ds = '2008-04-08' and 'a' = 'a'
PREHOOK: type: QUERY
PREHOOK: Input: default@srcpart
PREHOOK: Input: default@srcpart@ds=2008-04-08/hr=11
PREHOOK: Input: default@srcpart@ds=2008-04-08/hr=12
#### A masked pattern was here ####
POSTHOOK: query: SELECT COUNT(*) FROM srcpart WHERE ds = '2008-04-08' and 'a' = 'a'
POSTHOOK: type: QUERY
POSTHOOK: Input: default@srcpart
POSTHOOK: Input: default@srcpart@ds=2008-04-08/hr=11
POSTHOOK: Input: default@srcpart@ds=2008-04-08/hr=12
#### A masked pattern was here ####
1000