Problems with partition filter optimizer
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Key: PIG-1267
URL: https://issues.apache.org/jira/browse/PIG-1267
Project: Pig
Issue Type: Bug
Affects Versions: 0.7.0
Reporter: Richard Ding
Assignee: Richard Ding
There are a couple of problems with the current partition filter optimizer:
1. When a partition filter is removed from the logical plan, the input index of
the following join/cogroup operator may change, which in turn changes the
ordering of the fields in the schema and results in compile-time errors.
2. At most one partition filter can be removed per plan, while multiple
partition filters can exist in the cases of joins.
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