[ https://issues.apache.org/jira/browse/PIG-1618?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Xuefu Zhang updated PIG-1618: ----------------------------- Attachment: NewParser-13.patch Patch includes: 1. Union OnSchema migration from the old plan 2. Repackaging for new logical plan visitors. TestPatch run: ( Release audit warnings due to new folder/file) [exec] -1 overall. [exec] [exec] +1 @author. The patch does not contain any @author tags. [exec] [exec] +1 tests included. The patch appears to include 3 new or modified tests. [exec] [exec] +1 javadoc. The javadoc tool did not generate any warning messages. [exec] [exec] +1 javac. The applied patch does not increase the total number of javac compiler warnings. [exec] [exec] +1 findbugs. The patch does not introduce any new Findbugs warnings. [exec] [exec] -1 release audit. The applied patch generated 484 release audit warnings (more than the trunk's current 482 warnings). Ant test passed. > Switch to new parser generator technology > ----------------------------------------- > > Key: PIG-1618 > URL: https://issues.apache.org/jira/browse/PIG-1618 > Project: Pig > Issue Type: Improvement > Affects Versions: 0.8.0 > Reporter: Alan Gates > Assignee: Xuefu Zhang > Fix For: 0.9.0 > > Attachments: antlr-3.2.jar, javadoc.patch, NewParser-1.patch, > NewParser-10.patch, NewParser-11.patch, NewParser-12.patch, > NewParser-13.patch, NewParser-2.patch, NewParser-3.patch, NewParser-3.patch, > NewParser-4.patch, NewParser-5.patch, NewParser-6.patch, NewParser-7.patch, > NewParser-8.patches, NewParser-9.patch > > > There are many bugs in Pig related to the parser, particularly to bad error > messages. After review of Java CC we feel these will be difficult to address > using that tool. Also, the .jjt files used by JavaCC are hard to understand > and maintain. > ANTLR is being reviewed as the most likely choice to move to, but other > parsers will be reviewed as well. > This JIRA will act as an umbrella issue for other parser issues. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.