optimizer pushes filter before the foreach that generates column used by filter -------------------------------------------------------------------------------
Key: PIG-1022 URL: https://issues.apache.org/jira/browse/PIG-1022 Project: Pig Issue Type: Bug Components: impl Reporter: Thejas M Nair grunt> l = load 'students.txt' using PigStorage() as (name:chararray, gender:chararray, age:chararray, score:chararray); grunt> f = foreach l generate name, gender, age,score, '200' as gid:chararray; grunt> g = group f by (name, gid); grunt> f2 = foreach g generate group.name as name: chararray, group.gid as gid: chararray; grunt> filt = filter f2 by gid == '200'; grunt> explain filt; In the plan generated filt is pushed up after the load and before the first foreach, even though the filter is on gid which is generated in first foreach. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.