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