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https://issues.apache.org/jira/browse/PIG-1194?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12806038#action_12806038
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Richard Ding commented on PIG-1194:
-----------------------------------
This is different from PIG-1188 in that there is no missing field in the input
data (only some fields are nulls). The exception was caused by the incorrect
handling of null return values of the conditional operator.
> ERROR 2055: Received Error while processing the map plan
> --------------------------------------------------------
>
> Key: PIG-1194
> URL: https://issues.apache.org/jira/browse/PIG-1194
> Project: Pig
> Issue Type: Bug
> Components: impl
> Affects Versions: 0.5.0, 0.6.0
> Reporter: Viraj Bhat
> Assignee: Richard Ding
> Fix For: 0.7.0
>
> Attachments: inputdata.txt, PIG-1194.patch, PIG-1194.patch
>
>
> I have a simple Pig script which takes 3 columns out of which one is null.
> {code}
> input = load 'inputdata.txt' using PigStorage() as (col1, col2, col3);
> a = GROUP input BY (((double) col3)/((double) col2) > .001 OR col1 < 11 ?
> col1 : -1);
> b = FOREACH a GENERATE group as col1, SUM(input.col2) as col2,
> SUM(input.col3) as col3;
> store b into 'finalresult';
> {code}
> When I run this script I get the following error:
> ERROR 2055: Received Error while processing the map plan.
> org.apache.pig.backend.executionengine.ExecException: ERROR 2055: Received
> Error while processing the map plan.
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapBase.runPipeline(PigMapBase.java:277)
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapBase.map(PigMapBase.java:240)
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapReduce$Map.map(PigMapReduce.java:93)
> at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:50)
> at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:358)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:307)
> ================================================================================
> A more useful error message for the purpose of debugging would be helpful.
> Viraj
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