Mailing-List: contact issues-help@hive.apache.org; run by ezmlm
Precedence: bulk
Reply-To: dev@hive.apache.org
Date: Tue, 27 Jun 2017 13:24:00 +0000 (UTC)
From: "Yongzhi Chen (JIRA)" <jira@apache.org>
To: issues@hive.apache.org
Message-ID: <JIRA.13078636.1497020396000.115192.1498569840042@Atlassian.JIRA>
In-Reply-To: <JIRA.13078636.1497020396000@Atlassian.JIRA>
References: <JIRA.13078636.1497020396000@Atlassian.JIRA> <JIRA.13078636.1497020396105@jira-lw-us.apache.org>
Subject: [jira] [Updated] (HIVE-16869) Hive returns wrong result when
 predicates on non-existing columns are pushed down to Parquet reader
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
archived-at: Tue, 27 Jun 2017 13:24:04 -0000


     [ https://issues.apache.org/jira/browse/HIVE-16869?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yongzhi Chen updated HIVE-16869:
--------------------------------
       Resolution: Fixed
    Fix Version/s: 3.0.0
           Status: Resolved  (was: Patch Available)

Committed the fix to master. Thanks [~Yibing] for your contribution.

> Hive returns wrong result when predicates on non-existing columns are pushed down to Parquet reader
> ---------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-16869
>                 URL: https://issues.apache.org/jira/browse/HIVE-16869
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Yibing Shi
>            Assignee: Yibing Shi
>            Priority: Critical
>             Fix For: 3.0.0
>
>         Attachments: HIVE-16869.1.patch, HIVE-16869.2.patch
>
>
> When {{hive.optimize.ppd}} and {{hive.optimize.index.filter}} are turned, and a select query has a condition on a column that doesn't exist in Parquet file (such as a partition column), Hive often returns wrong result.
> Please see below example for details:
> {noformat}
> hive> create table test_parq (a int, b int) partitioned by (p int) stored as parquet;
> OK
> Time taken: 0.292 seconds
> hive> insert overwrite table test_parq partition (p=1) values (1, 2);
> OK
> Time taken: 5.08 seconds
> hive> select * from test_parq where a=1 and p=1;
> OK
> 1	2	1
> Time taken: 0.441 seconds, Fetched: 1 row(s)
> hive> select * from test_parq where (a=1 and p=1) or (a=999 and p=999);
> OK
> 1	2	1
> Time taken: 0.197 seconds, Fetched: 1 row(s)
> hive> set hive.optimize.index.filter=true;
> hive> select * from test_parq where (a=1 and p=1) or (a=999 and p=999);
> OK
> Time taken: 0.167 seconds
> hive> select * from test_parq where (a=1 or a=999) and (a=999 or p=1);
> OK
> Time taken: 0.563 seconds
> {noformat}


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