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https://issues.apache.org/jira/browse/HIVE-6382?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13894006#comment-13894006
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Hive QA commented on HIVE-6382:
-------------------------------
{color:green}Overall{color}: +1 all checks pass
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12627461/HIVE-6382.2.patch
{color:green}SUCCESS:{color} +1 5039 tests passed
Test results:
http://bigtop01.cloudera.org:8080/job/PreCommit-HIVE-Build/1226/testReport
Console output:
http://bigtop01.cloudera.org:8080/job/PreCommit-HIVE-Build/1226/console
Messages:
{noformat}
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12627461
> PATCHED_BLOB encoding in ORC will corrupt data in some cases
> ------------------------------------------------------------
>
> Key: HIVE-6382
> URL: https://issues.apache.org/jira/browse/HIVE-6382
> Project: Hive
> Issue Type: Bug
> Components: Serializers/Deserializers
> Affects Versions: 0.13.0
> Reporter: Prasanth J
> Assignee: Prasanth J
> Labels: orcfile
> Attachments: HIVE-6382.1.patch, HIVE-6382.2.patch
>
>
> In PATCHED_BLOB encoding (added in HIVE-4123), gapVsPatchList is an array of
> long that stores gap (g) between the values that are patched and the patch
> value (p). The maximum distance of gap can be 511 that require 8 bits to
> encode. And patch values can take more than 56 bits. When patch values take
> more than 56 bits, p + g will become > 64 bits which cannot be packed to a
> long. This will result in data corruption under the case where patch values
> are > 56 bits.
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