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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-5352) cast('1.0' as int) returns null
Date Thu, 26 Sep 2013 22:44:02 GMT

    [ https://issues.apache.org/jira/browse/HIVE-5352?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13779402#comment-13779402
] 

Hive QA commented on HIVE-5352:
-------------------------------



{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/12605199/HIVE-5352.5.patch

{color:red}ERROR:{color} -1 due to 1 failed/errored test(s), 3163 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestMinimrCliDriver.testCliDriver_bucket5
{noformat}

Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/918/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/918/console

Messages:
{noformat}
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
Tests failed with: TestsFailedException: 1 tests failed
{noformat}

This message is automatically generated.
                
> cast('1.0' as int) returns null
> -------------------------------
>
>                 Key: HIVE-5352
>                 URL: https://issues.apache.org/jira/browse/HIVE-5352
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Gunther Hagleitner
>            Assignee: Gunther Hagleitner
>         Attachments: HIVE-5352.1.patch, HIVE-5352.2.patch, HIVE-5352.3.patch, HIVE-5352.4.patch,
HIVE-5352.5.patch
>
>
> Casting strings to int/smallint/bigint/tinyint yields null if the string isn't a 'pure'
integer. '1.0', '2.4' all return null. I think for those cases the cast should return the
truncated int (i.e.: if c is string, cast(c as int) should be the same as cast(cast(c as float)
as int).
> This is in line with the standard and is the same behavior as mysql and oracle. (postgres
and sql server throw error, see first answer here: http://social.msdn.microsoft.com/Forums/sqlserver/en-US/af3eff9c-737b-42fe-9016-05da9203a667/oracle-does-understand-cast10-as-int-why-sql-server-does-not)

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