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From "Prasanth Jayachandran (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-11494) Some positive constant double predicates gets rounded off while negative constants are not
Date Thu, 06 Aug 2015 21:36:05 GMT
Prasanth Jayachandran created HIVE-11494:
--------------------------------------------

             Summary: Some positive constant double predicates gets rounded off while negative
constants are not
                 Key: HIVE-11494
                 URL: https://issues.apache.org/jira/browse/HIVE-11494
             Project: Hive
          Issue Type: Bug
    Affects Versions: 2.0.0
            Reporter: Prasanth Jayachandran
            Assignee: Pengcheng Xiong
            Priority: Critical


Check the predicates in filter expression for following queries. It looks closely related
to HIVE-11477 and HIVE-11493
{code:title=explain select * from orc_ppd where f = -0.07999999821186066;}
OK
Stage-0
   Fetch Operator
      limit:-1
      Select Operator [SEL_2]
         outputColumnNames:["_col0","_col1","_col2","_col3","_col4","_col5","_col6","_col7","_col8","_col9","_col10","_col11","_col12","_col13"]
         Filter Operator [FIL_4]
            predicate:(f = -0.07999999821186066) (type: boolean)
            TableScan [TS_0]
               alias:orc_ppd
{code}

{code:title=explain select * from orc_ppd where f = 0.07999999821186066;}
OK
Stage-0
   Fetch Operator
      limit:-1
      Select Operator [SEL_2]
         outputColumnNames:["_col0","_col1","_col2","_col3","_col4","_col5","_col6","_col7","_col8","_col9","_col10","_col11","_col12","_col13"]
         Filter Operator [FIL_4]
            predicate:(f = 0.08) (type: boolean)
            TableScan [TS_0]
               alias:orc_ppd
{code}



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