[jira] [Commented] (HIVE-15680) Incorrect results when hive.optimize.index.filter=true and same ORC table is referenced twice in query

["Prasanth Jayachandran (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-15680?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16251834#comment-16251834 ] 

Prasanth Jayachandran commented on HIVE-15680:
----------------------------------------------

[~niklaus.xiao] made some valid points in RB. Set will change order of needed columns/types. Also the case where aliases require different needed columns does not look correct. Added one more comment to RB.

> Incorrect results when hive.optimize.index.filter=true and same ORC table is referenced twice in query
> ------------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-15680
>                 URL: https://issues.apache.org/jira/browse/HIVE-15680
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 1.1.0, 2.2.0
>            Reporter: Anthony Hsu
>            Assignee: Anthony Hsu
>         Attachments: HIVE-15680.1.patch, HIVE-15680.2.patch, HIVE-15680.3.patch, HIVE-15680.4.patch, HIVE-15680.5.patch, HIVE-15680.6.patch
>
>
> To repro:
> {noformat}
> set hive.optimize.index.filter=true;
> create table test_table(number int) stored as ORC;
> -- Two insertions will create two files, with one stripe each
> insert into table test_table VALUES (1);
> insert into table test_table VALUES (2);
> -- This should and does return 2 records
> select * from test_table;
> -- These should and do each return 1 record
> select * from test_table where number = 1;
> select * from test_table where number = 2;
> -- This should return 2 records but only returns 1 record
> select * from test_table where number = 1
> union all
> select * from test_table where number = 2;
> {noformat}
> What's happening is only the last predicate is being pushed down.



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)