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From "Venki Korukanti (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-8099) IN operator for partition column fails when the partition column type is DATE
Date Mon, 15 Sep 2014 04:20:33 GMT
Venki Korukanti created HIVE-8099:
-------------------------------------

             Summary: IN operator for partition column fails when the partition column type
is DATE
                 Key: HIVE-8099
                 URL: https://issues.apache.org/jira/browse/HIVE-8099
             Project: Hive
          Issue Type: Bug
          Components: Query Processor
    Affects Versions: 0.13.1, 0.13.0
            Reporter: Venki Korukanti
            Assignee: Venki Korukanti
             Fix For: 0.14.0


Test table DLL:
{code}
CREATE TABLE testTbl(col1 string) PARTITIONED BY (date_prt date);
{code}

Following query used to work fine in Hive 0.12 as the constant types are 'string' and partition
column type is considered as 'string' throughout the planning and optimization (including
partition pruning).
{code}
SELECT * FROM testTbl WHERE date_prt IN ('2014-08-09', '2014-08-08'); 
{code}

In trunk the above query fails with:
{code}
Line 1:33 Wrong arguments ''2014-08-08'': The arguments for IN should be the same type! Types
are: {date IN (string, string)}
{code}


HIVE-6642 changed the SemanticAnalyzer.java to consider partition type given in table definition
instead of hardcoded 'string' type. (Modified [Hive 0.12 code|https://github.com/apache/hive/blob/branch-0.12/ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java#L7778]).
So changed the query as follows to go past the above error:

{code}
SELECT * FROM testTbl WHERE date_prt IN (CAST('2014-08-09' AS DATE), CAST('2014-08-08' AS
DATE)); 
{code}


Now query goes past the error in SemanticAnalyzer, but hits the same issue (default 'string'
type for partition columns) in partition pruning optimization. (Realted code [here|https://github.com/apache/hive/blob/trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/ppr/PartExprEvalUtils.java#L110]).
 
{code}
14/09/14 20:07:20 ERROR ql.Driver: FAILED: SemanticException MetaException(message:The arguments
for IN should be the same type! Types are: {string IN (date, date)})
{code}

We need to change partition pruning code to consider the partition column as the type given
in table definition.




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