[ https://issues.apache.org/jira/browse/PIG-597?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Olga Natkovich reassigned PIG-597: ---------------------------------- Assignee: Shravan Matthur Narayanamurthy > Pig does not handdle correctly the case where "*" is passed to UDF > ------------------------------------------------------------------ > > Key: PIG-597 > URL: https://issues.apache.org/jira/browse/PIG-597 > Project: Pig > Issue Type: Bug > Reporter: Olga Natkovich > Assignee: Shravan Matthur Narayanamurthy > > Script: > ====== > A = LOAD 'foo' USING PigStorage('\t'); > B = FILTER A BY ARITY(*) < 5; > DUMP B; > Error: > ===== > 2009-01-05 21:46:56,355 [main] ERROR > org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.POUserFunc > - Caught error from UDF > org.apache.pig.builtin.ARITY[org.apache.pig.data.DataByteArray cannot be cast > to org.apache.pig.data.Tuple [org.apache.pig.data.DataByteArray cannot be > cast to org.apache.pig.data.Tuple] > Problem: > ======= > Santhosh tracked this to the following code in POUserFunc.java: > if(op instanceof POProject && > op.getResultType() == DataType.TUPLE){ > POProject projOp = (POProject)op; > if(projOp.isStar()){ > Tuple trslt = (Tuple) temp.result; > Tuple rslt = (Tuple) res.result; > for(int i=0;i<trslt.size();i++) > rslt.append(trslt.get(i)); > continue; > } > } > It seems to be unwrapping the tuple before passing it to the function. There > is no comments so we are not sure why it is there; will need to run tests to > see if removing it would solve this issue and not create others. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.