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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-14085) Allow type widening primitive conversion on hive/parquet tables
Date Sat, 25 Jun 2016 01:03:16 GMT

    [ https://issues.apache.org/jira/browse/HIVE-14085?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15348973#comment-15348973
] 

Hive QA commented on HIVE-14085:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12813125/HIVE-14085.1.patch

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

{color:red}ERROR:{color} -1 due to 5 failed/errored test(s), 10265 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_list_bucket_dml_13
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_stats_list_bucket
org.apache.hadoop.hive.cli.TestMiniLlapCliDriver.testCliDriver_vector_complex_all
org.apache.hadoop.hive.cli.TestMiniLlapCliDriver.testCliDriver_vector_complex_join
org.apache.hadoop.hive.cli.TestMiniSparkOnYarnCliDriver.testCliDriver_index_bitmap3
{noformat}

Test results: https://builds.apache.org/job/PreCommit-HIVE-MASTER-Build/257/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-MASTER-Build/257/console
Test logs: http://ec2-50-18-27-0.us-west-1.compute.amazonaws.com/logs/PreCommit-HIVE-MASTER-Build-257/

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: 5 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12813125 - PreCommit-HIVE-MASTER-Build

> Allow type widening primitive conversion on hive/parquet tables
> ---------------------------------------------------------------
>
>                 Key: HIVE-14085
>                 URL: https://issues.apache.org/jira/browse/HIVE-14085
>             Project: Hive
>          Issue Type: Improvement
>          Components: File Formats
>            Reporter: Vihang Karajgaonkar
>            Assignee: Vihang Karajgaonkar
>         Attachments: HIVE-14085.1.patch
>
>
> There is a JIRA ticket on upstream that brought this usability improvement in Hive to
support auto type widening for Parquet tables. See https://issues.apache.org/jira/browse/HIVE-12080
> This improvement is very useful for users who have schema evolution on their tables.
For example, a Hive table with a "bigint" can read parquet files with "int32" and "int64"
types.
> The patch only supports widening conversions from int->bigint and float->double.
We should support more types to allow users read their changed parquet schema.
> Here's a list of widening conversions we should support:
> {code}
> tinyint     ->  smallint,int,bigint,float,double
> smallint  -> int,bigint,float,double
> int          -> bigint,float,double
> bigint     -> float,double
> float       ->  double
> double   ->  --
> {code}



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