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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-7090) Support session-level temporary tables in Hive
Date Thu, 26 Jun 2014 03:24:24 GMT

    [ https://issues.apache.org/jira/browse/HIVE-7090?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14044309#comment-14044309
] 

Hive QA commented on HIVE-7090:
-------------------------------



{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/12652537/HIVE-7090.4.patch

{color:red}ERROR:{color} -1 due to 8 failed/errored test(s), 5685 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_nullformat
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_nullformatCTAS
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_show_create_table_alter
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_show_create_table_db_table
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_show_create_table_delimited
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_show_create_table_serde
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_stats19
org.apache.hadoop.hive.cli.TestMinimrCliDriver.testCliDriver_root_dir_external_table
{noformat}

Test results: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-Build/592/testReport
Console output: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-Build/592/console
Test logs: http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-Build-592/

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: 8 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12652537

> Support session-level temporary tables in Hive
> ----------------------------------------------
>
>                 Key: HIVE-7090
>                 URL: https://issues.apache.org/jira/browse/HIVE-7090
>             Project: Hive
>          Issue Type: Bug
>          Components: SQL
>            Reporter: Gunther Hagleitner
>            Assignee: Jason Dere
>         Attachments: HIVE-7090.1.patch, HIVE-7090.2.patch, HIVE-7090.3.patch, HIVE-7090.4.patch
>
>
> It's common to see sql scripts that create some temporary table as an intermediate result,
run some additional queries against it and then clean up at the end.
> We should support temporary tables properly, meaning automatically manage the life cycle
and make sure the visibility is restricted to the creating connection/session. Without these
it's common to see left over tables in meta-store or weird errors with clashing tmp table
names.
> Proposed syntax:
> CREATE TEMPORARY TABLE ....
> CTAS, CTL, INSERT INTO, should all be supported as usual.
> Knowing that a user wants a temp table can enable us to further optimize access to it.
E.g.: temp tables should be kept in memory where possible, compactions and merging table files
aren't required, ...



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