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From "Ankur (JIRA)" <j...@apache.org>
Subject [jira] Commented: (PIG-1191) POCast throws exception for certain sequences of LOAD, FILTER, FORACH
Date Fri, 15 Jan 2010 10:49:56 GMT

    [ https://issues.apache.org/jira/browse/PIG-1191?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12800660#action_12800660

Ankur commented on PIG-1191:

Small correct in comment dated - 15/Jan/10 09:39 AM

Case 5: Still FAILS

> POCast throws exception for certain sequences of LOAD, FILTER, FORACH
> ---------------------------------------------------------------------
>                 Key: PIG-1191
>                 URL: https://issues.apache.org/jira/browse/PIG-1191
>             Project: Pig
>          Issue Type: Bug
>    Affects Versions: 0.6.0
>            Reporter: Ankur
>            Assignee: Pradeep Kamath
>            Priority: Blocker
>         Attachments: PIG-1191-1.patch
> When using a custom load/store function, one that returns complex data (map of maps,
list of maps), for certain sequences  of LOAD, FILTER, FOREACH pig script throws an exception
of the form -
> org.apache.pig.backend.executionengine.ExecException: ERROR 1075: Received a bytearray
from the UDF. Cannot determine how to convert the bytearray to <actual-type>
> at org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.POCast.getNext(POCast.java:639)
> ...
> Looking through the code of POCast, apparently the operator was unable to find the right
load function for doing the conversion and consequently bailed out with the exception failing
the entire pig script.

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