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https://issues.apache.org/jira/browse/PIG-1178?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12832328#action_12832328
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Hadoop QA commented on PIG-1178:
--------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12435054/pig_1178.patch
against trunk revision 908324.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 34 new or modified tests.
-1 javadoc. The javadoc tool appears to have generated 1 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 generated 489 release audit warnings
(more than the trunk's current 487 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-h7.grid.sp2.yahoo.net/199/testReport/
Release audit warnings:
http://hudson.zones.apache.org/hudson/job/Pig-Patch-h7.grid.sp2.yahoo.net/199/artifact/trunk/patchprocess/releaseAuditDiffWarnings.txt
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Pig-Patch-h7.grid.sp2.yahoo.net/199/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output:
http://hudson.zones.apache.org/hudson/job/Pig-Patch-h7.grid.sp2.yahoo.net/199/console
This message is automatically generated.
> LogicalPlan and Optimizer are too complex and hard to work with
> ---------------------------------------------------------------
>
> Key: PIG-1178
> URL: https://issues.apache.org/jira/browse/PIG-1178
> Project: Pig
> Issue Type: Improvement
> Reporter: Alan Gates
> Assignee: Ying He
> Attachments: expressions-2.patch, expressions.patch, lp.patch,
> lp.patch, pig_1178.patch, pig_1178.patch, PIG_1178.patch
>
>
> The current implementation of the logical plan and the logical optimizer in
> Pig has proven to not be easily extensible. Developer feedback has indicated
> that adding new rules to the optimizer is quite burdensome. In addition, the
> logical plan has been an area of numerous bugs, many of which have been
> difficult to fix. Developers also feel that the logical plan is difficult to
> understand and maintain. The root cause for these issues is that a number of
> design decisions that were made as part of the 0.2 rewrite of the front end
> have now proven to be sub-optimal. The heart of this proposal is to revisit a
> number of those proposals and rebuild the logical plan with a simpler design
> that will make it much easier to maintain the logical plan as well as extend
> the logical optimizer.
> See http://wiki.apache.org/pig/PigLogicalPlanOptimizerRewrite for full
> details.
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