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https://issues.apache.org/jira/browse/PIG-760?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12783188#action_12783188
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Hadoop QA commented on PIG-760:
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+1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12426297/pigstorageschema_4.patch
against trunk revision 884235.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 6 new or modified tests.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
+1 core tests. The patch passed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results:
http://hudson.zones.apache.org/hudson/job/Pig-Patch-h8.grid.sp2.yahoo.net/64/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Pig-Patch-h8.grid.sp2.yahoo.net/64/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output:
http://hudson.zones.apache.org/hudson/job/Pig-Patch-h8.grid.sp2.yahoo.net/64/console
This message is automatically generated.
> Serialize schemas for PigStorage() and other storage types.
> -----------------------------------------------------------
>
> Key: PIG-760
> URL: https://issues.apache.org/jira/browse/PIG-760
> Project: Pig
> Issue Type: New Feature
> Reporter: David Ciemiewicz
> Assignee: Dmitriy V. Ryaboy
> Fix For: 0.7.0
>
> Attachments: pigstorageschema-2.patch, pigstorageschema.patch,
> pigstorageschema_3.patch, pigstorageschema_4.patch
>
>
> I'm finding PigStorage() really convenient for storage and data interchange
> because it compresses well and imports into Excel and other analysis
> environments well.
> However, it is a pain when it comes to maintenance because the columns are in
> fixed locations and I'd like to add columns in some cases.
> It would be great if load PigStorage() could read a default schema from a
> .schema file stored with the data and if store PigStorage() could store a
> .schema file with the data.
> I have tested this out and both Hadoop HDFS and Pig in -exectype local mode
> will ignore a file called .schema in a directory of part files.
> So, for example, if I have a chain of Pig scripts I execute such as:
> A = load 'data-1' using PigStorage() as ( a: int , b: int );
> store A into 'data-2' using PigStorage();
> B = load 'data-2' using PigStorage();
> describe B;
> describe B should output something like { a: int, b: int }
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