[ 
https://issues.apache.org/jira/browse/HIVE-8740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14198913#comment-14198913
 ] 

Alan Gates commented on HIVE-8740:
----------------------------------

Is this the set of queries you're referring to?
{code}
+insert into table acid partition(ds)  select key,value,ds from srcpart;
+select count(*) from acid where ds='2008-04-08';
+
+insert into table acid partition(ds='2008-04-08') values("foo", "bar");
+select count(*) from acid where ds='2008-04-08';
+
+update acid set key = 'foo' where ds='2008-04-08';
+select count(*) from acid where ds='2008-04-08';
+
+update acid set key = 'foo' where ds in ('2008-04-08');
+select count(*) from acid where ds in ('2008-04-08');
+
+delete from acid where key = 'foo' and ds='2008-04-08';
+select count(*) from acid where ds='2008-04-08';
{code}
I don't see an issue here.  You're setting every row in 2008-04-08 to have a 
key of foo, and then deleting all records with a key of foo, so that partition 
will be empty.

> Sorted dynamic partition does not work correctly with constant folding
> ----------------------------------------------------------------------
>
>                 Key: HIVE-8740
>                 URL: https://issues.apache.org/jira/browse/HIVE-8740
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 0.14.0
>            Reporter: Prasanth J
>            Assignee: Prasanth J
>         Attachments: HIVE-8740.1.patch
>
>
> Sorted dynamic partition optimization looks for partition columns from the 
> operator above FileSinkOperator. As per hive convention it expects partition 
> columns at the last. But with HIVE-8585 equality filters on partition columns 
> gets folded to constant. The column pruner then prunes the constant 
> expression as they don't reference any columns. This in some cases will yield 
> unexpected results (throw ArrayIndexOutOfBounds exception) with sorted 
> dynamic partition insert optimization. In such we don't really need sorted 
> dynamic partition optimization.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Reply via email to