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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/12451203/PIG-1178-5.patch against trunk revision 982423. +1 @author. The patch does not contain any @author tags. +1 tests included. The patch appears to include 91 new or modified tests. -1 patch. The patch command could not apply the patch. Console output: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h8.grid.sp2.yahoo.net/375/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: Daniel Dai > Fix For: 0.8.0 > > Attachments: expressions-2.patch, expressions.patch, lp.patch, > lp.patch, PIG-1178-4.patch, PIG-1178-5.patch, pig_1178.patch, pig_1178.patch, > PIG_1178.patch, pig_1178_2.patch, pig_1178_3.2.patch, pig_1178_3.3.patch, > pig_1178_3.4.patch, pig_1178_3.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. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.