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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-14035) Enable predicate pushdown to delta files created by ACID Transactions
Date Mon, 20 Jun 2016 15:18:05 GMT

    [ https://issues.apache.org/jira/browse/HIVE-14035?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15339687#comment-15339687
] 

Hive QA commented on HIVE-14035:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12811785/HIVE-14035.02.patch

{color:green}SUCCESS:{color} +1 due to 2 test(s) being added or modified.

{color:red}ERROR:{color} -1 due to 14 failed/errored test(s), 10235 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_acid_globallimit
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_autoColumnStats_4
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_constantPropagateForSubQuery
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_insert_values_orig_table_use_metadata
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_list_bucket_dml_12
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_repair
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_stats_list_bucket
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_subquery_multiinsert
org.apache.hadoop.hive.cli.TestMiniSparkOnYarnCliDriver.testCliDriver_index_bitmap3
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver_acid_globallimit
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver_explainuser_3
org.apache.hadoop.hive.cli.TestMinimrCliDriver.testCliDriver_table_nonprintable
org.apache.hadoop.hive.ql.metadata.TestHiveMetaStoreChecker.testPartitionsCheck
org.apache.hadoop.hive.ql.metadata.TestHiveMetaStoreChecker.testTableCheck
{noformat}

Test results: https://builds.apache.org/job/PreCommit-HIVE-MASTER-Build/190/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-MASTER-Build/190/console
Test logs: http://ec2-50-18-27-0.us-west-1.compute.amazonaws.com/logs/PreCommit-HIVE-MASTER-Build-190/

Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
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: 14 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12811785 - PreCommit-HIVE-MASTER-Build

> Enable predicate pushdown to delta files created by ACID Transactions
> ---------------------------------------------------------------------
>
>                 Key: HIVE-14035
>                 URL: https://issues.apache.org/jira/browse/HIVE-14035
>             Project: Hive
>          Issue Type: New Feature
>          Components: Transactions
>            Reporter: Saket Saurabh
>            Assignee: Saket Saurabh
>         Attachments: HIVE-14035.02.patch, HIVE-14035.patch
>
>
> In current Hive version, delta files created by ACID transactions do not allow predicate
pushdown if they contain any update/delete events. This is done to preserve correctness when
following a multi-version approach during event collapsing, where an update event overwrites
an existing insert event. 
> This JIRA proposes to split an update event into a combination of a delete event followed
by a new insert event, that can enable predicate push down to all delta files without breaking
correctness. To support backward compatibility for this feature, this JIRA also proposes to
add some sort of versioning to ACID that can allow different versions of ACID transactions
to co-exist together.



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