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Koji Noguchi commented on PIG-5224: ----------------------------------- bq. That's only if user write "foreach" statement carefully. If he project a column but never used in the script, Column pruner will still think this is a column should remove. Ah, you're right (as always) :) Committing pig-5224-v2.patch. > Extra foreach from ColumnPrune preventing Accumulator usage > ----------------------------------------------------------- > > Key: PIG-5224 > URL: https://issues.apache.org/jira/browse/PIG-5224 > Project: Pig > Issue Type: Improvement > Reporter: Koji Noguchi > Assignee: Koji Noguchi > Attachments: pig-5224-v0-testonly.patch, pig-5224-v1.patch, > pig-5224-v2.patch > > > {code} > A = load 'input' as (id:int, fruit); > B = foreach A generate id; -- to enable columnprune > C = group B by id; > D = foreach C { > o = order B by id; > generate org.apache.pig.test.utils.AccumulatorBagCount(o); > } > STORE D into ... > {code} > Pig fails to use Accumulator interface for this UDF. -- This message was sent by Atlassian JIRA (v6.3.15#6346)