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Posted to dev@pig.apache.org by "Hadoop QA (JIRA)" <ji...@apache.org> on 2009/10/02 03:17:23 UTC
[jira] Commented: (PIG-592) schema inferred incorrectly
[ https://issues.apache.org/jira/browse/PIG-592?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12761443#action_12761443 ]
Hadoop QA commented on PIG-592:
-------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12421075/PIG-592-2.patch
against trunk revision 820394.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 12 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 failed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h7.grid.sp2.yahoo.net/55/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h7.grid.sp2.yahoo.net/55/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h7.grid.sp2.yahoo.net/55/console
This message is automatically generated.
> schema inferred incorrectly
> ---------------------------
>
> Key: PIG-592
> URL: https://issues.apache.org/jira/browse/PIG-592
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.4.0
> Reporter: Christopher Olston
> Fix For: 0.6.0
>
> Attachments: PIG-592-1.patch, PIG-592-2.patch
>
>
> A simple pig script, that never introduces any schema information:
> A = load 'foo';
> B = foreach (group A by $8) generate group, COUNT($1);
> C = load 'bar'; // ('bar' has two columns)
> D = join B by $0, C by $0;
> E = foreach D generate $0, $1, $3;
> Fails, complaining that $3 does not exist:
> java.io.IOException: Out of bound access. Trying to access non-existent column: 3. Schema {B::group: bytearray,long,bytearray} has 3 column(s).
> Apparently Pig gets confused, and thinks it knows the schema for C (a single bytearray column).
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