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From "Xuefu Zhang (JIRA)" <j...@apache.org>
Subject [jira] Created: (PIG-1575) Complete the migration of optimization rule PushUpFilter including missing test cases
Date Fri, 27 Aug 2010 19:17:55 GMT
Complete the migration of optimization rule PushUpFilter including missing test cases
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                 Key: PIG-1575
                 URL: https://issues.apache.org/jira/browse/PIG-1575
             Project: Pig
          Issue Type: Bug
            Reporter: Xuefu Zhang
            Assignee: Xuefu Zhang
             Fix For: 0.8.0


The Optimization rule under the new logical plan, PushUpFilter, only does a subset of optimization
scenarios compared to the same rule under the old logical plan. For instance, it only considers
filter after join, but the old optimization also considers other operators such as CoGroup,
Union, Cross, etc. The migration of the rule should be complete.

Also, the test cases created for testing the old PushUpFilter wasn't migrated to the new logical
plan code base. It should be also migrated. (A few has been migrated in JIRA-1574.)

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