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From "rohithsharma (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-3309) drop partition doesnot work for mixture of string and non-string columns for non-equality operatior
Date Mon, 30 Jul 2012 14:21:35 GMT

    [ https://issues.apache.org/jira/browse/HIVE-3309?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13424877#comment-13424877
] 

rohithsharma commented on HIVE-3309:
------------------------------------

If the query contains partition column of type only string , then non-equality operator throw
exception.
Example : 
1. create table ptestfilter (a string, b int) partitioned by (c string, d int);
2. alter table ptestfilter add partition (c='1', d=1);
3. alter table ptestfilter drop partition (c<'2');

In above example, line-3 throws exception. But expected is query should drop partition columns
which are less then 2.
                
> drop partition doesnot work for mixture of string and non-string columns for non-equality
operatior
> ---------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-3309
>                 URL: https://issues.apache.org/jira/browse/HIVE-3309
>             Project: Hive
>          Issue Type: Bug
>          Components: Metastore, Query Processor
>    Affects Versions: 0.9.1
>         Environment: SuSE 11 SP 1
> Hadoop Cluster + Hive
>            Reporter: rohithsharma
>            Priority: Minor
>
> There is still problem in "drop partition" columns if the partition columns are mixture
of string and non-string.
> There is behavioural change after fixing HIVE-3063.
> Before fix
> ==========
> create table ptestfilter (a string, b int) partitioned by (c string, d int);
> alter table ptestfilter add partition (c='1', d=2);
> alter table ptestFilter add partition (c='2', d=1);
> alter table ptestfilter drop partition (c<'2'); //this will execute fine
> After fix
> ==========
> create table ptestfilter (a string, b int) partitioned by (c string, d int);
> alter table ptestfilter add partition (c='1', d=2);
> alter table ptestFilter add partition (c='2', d=1);
> alter table ptestfilter drop partition (c<'2'); //this will fail to execute.

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