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From "Eugene Koifman (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-17013) Delete request with a subquery based on select over a view
Date Wed, 05 Jul 2017 01:23:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-17013?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16074154#comment-16074154
] 

Eugene Koifman commented on HIVE-17013:
---------------------------------------

We have tests https://github.com/apache/hive/blob/master/ql/src/test/org/apache/hadoop/hive/ql/TestTxnCommands.java#L397-L410
that cover "delete + in" so it probably something to do with how the optimizer deals with
views.
cc [~jcamachorodriguez], [~ashutoshc]


> Delete request with a subquery based on select over a view
> ----------------------------------------------------------
>
>                 Key: HIVE-17013
>                 URL: https://issues.apache.org/jira/browse/HIVE-17013
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Frédéric ESCANDELL
>            Priority: Blocker
>
> Hi, 
> I based my DDL on this exemple https://fr.hortonworks.com/tutorial/using-hive-acid-transactions-to-insert-update-and-delete-data/.
> In a delete request, the use of a view in a subquery throw an exception : 
> FAILED: IllegalStateException Expected 'insert into table default.mydim select ROW__ID
from default.mydim sort by ROW__ID' to be in sub-query or set operation.
> {code}
> {code:sql}
> drop table if exists mydim;
> create table mydim (key int, name string, zip string, is_current boolean)
> clustered by(key) into 3 buckets
> stored as orc tblproperties ('transactional'='true');
> insert into mydim values
>   (1, 'bob',   '95136', true),
>   (2, 'joe',   '70068', true),
>   (3, 'steve', '22150', true);
> drop table if exists updates_staging_table;
> create table updates_staging_table (key int, newzip string);
> insert into updates_staging_table values (1, 87102), (3, 45220);
> drop view if exists updates_staging_view;
> create view updates_staging_view (key, newzip) as select key, newzip from updates_staging_table;
> delete from mydim
> where mydim.key in (select key from updates_staging_view);
> FAILED: IllegalStateException Expected 'insert into table default.mydim select ROW__ID
from default.mydim sort by ROW__ID' to be in sub-query or set operation.
> {code}



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