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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-11634) Support partition pruning for IN(STRUCT(partcol, nonpartcol..)...)
Date Wed, 26 Aug 2015 23:37:45 GMT

    [ https://issues.apache.org/jira/browse/HIVE-11634?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14715749#comment-14715749
] 

Hive QA commented on HIVE-11634:
--------------------------------



{color:red}Overall{color}: -1 at least one tests failed

Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12752555/HIVE-11634.3.patch

{color:red}ERROR:{color} -1 due to 2 failed/errored test(s), 9376 tests executed
*Failed tests:*
{noformat}
org.apache.hive.hcatalog.api.TestHCatClient.testTableSchemaPropagation
org.apache.hive.hcatalog.hbase.TestPigHBaseStorageHandler.org.apache.hive.hcatalog.hbase.TestPigHBaseStorageHandler
{noformat}

Test results: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/5080/testReport
Console output: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/5080/console
Test logs: http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-TRUNK-Build-5080/

Messages:
{noformat}
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
Tests exited with: TestsFailedException: 2 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12752555 - PreCommit-HIVE-TRUNK-Build

> Support partition pruning for IN(STRUCT(partcol, nonpartcol..)...)
> ------------------------------------------------------------------
>
>                 Key: HIVE-11634
>                 URL: https://issues.apache.org/jira/browse/HIVE-11634
>             Project: Hive
>          Issue Type: Bug
>          Components: CBO
>            Reporter: Hari Sankar Sivarama Subramaniyan
>            Assignee: Hari Sankar Sivarama Subramaniyan
>         Attachments: HIVE-11634.1.patch, HIVE-11634.2.patch, HIVE-11634.3.patch
>
>
> Currently, we do not support partition pruning for the following scenario
> {code}
> create table pcr_t1 (key int, value string) partitioned by (ds string);
> insert overwrite table pcr_t1 partition (ds='2000-04-08') select * from src where key
< 20 order by key;
> insert overwrite table pcr_t1 partition (ds='2000-04-09') select * from src where key
< 20 order by key;
> insert overwrite table pcr_t1 partition (ds='2000-04-10') select * from src where key
< 20 order by key;
> explain extended select ds from pcr_t1 where struct(ds, key) in (struct('2000-04-08',1),
struct('2000-04-09',2));
> {code}
> If we run the above query, we see that all the partitions of table pcr_t1 are present
in the filter predicate where as we can prune  partition (ds='2000-04-10'). 
> The optimization is to rewrite the above query into the following.
> {code}
> explain extended select ds from pcr_t1 where  (struct(ds)) IN (struct('2000-04-08'),
struct('2000-04-09')) and  struct(ds, key) in (struct('2000-04-08',1), struct('2000-04-09',2));
> {code}
> The predicate (struct(ds)) IN (struct('2000-04-08'), struct('2000-04-09'))  is used by
partition pruner to prune the columns which otherwise will not be pruned.
> This is an extension of the idea presented in HIVE-11573.



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