[PIG-522] Problem in using negative (-a)

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.2.0
• Fix Version/s: 0.2.0
• Assignee: Pradeep Kamath
• Reporter: Santhosh Muthur Srinivasan
• Created: 11/Nov/08 00:39
• Updated: 24/Mar/10 22:04
• Resolved: 18/Dec/08 23:59

Description

Using negative, i.e., -a leads to exceptions.

grunt> a = load 'myfile' as  (name:chararray, age:int, gpa:double);
grunt> b = foreach a generate -gpa;
grunt> dump b;

2008-11-10 16:38:12,517 [main] INFO  org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - 0% complete
2008-11-10 16:38:37,539 [main] ERROR org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - Map reduce job failed
2008-11-10 16:38:37,540 [main] ERROR org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - Job failed!
2008-11-10 16:38:37,542 [main] ERROR org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.Launcher - Error message from task (map) task_200809241441_19426_m_000000java.io.IOException: Received Error while processing the map plan.
        at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapBase.runPipeline(PigMapBase.java:197)
        at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapBase.map(PigMapBase.java:158)
        at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapOnly$Map.map(PigMapOnly.java:65)
        at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:47)
        at org.apache.hadoop.mapred.MapTask.run(MapTask.java:227)
        at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2207)