$ cat data6 1 2 3 4 5 $ java -cp pig.jar org.apache.pig.Main -x local a = load 'data6' as (x:chararray); b = foreach a generate x as y:int; c = foreach b generate y+y; dump c;
Eventually: java.lang.ClassCastException: java.lang.String cannot be cast to java.lang.Number at org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.Add.genericGetNext(Add.java:89) at org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.Add.getNext(Add.java:114) at org.apache.pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator.getNext(PhysicalOperator.java:344) at org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POForEach.processPlan(POForEach.java:353) at org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POForEach.getNext(POForEach.java:294) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapBase.runPipeline(PigGenericMapBase.java:273) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapBase.map(PigGenericMapBase.java:268) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapBase.map(PigGenericMapBase.java:64) at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:144) at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370) at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:212) 2012/6/19 Aniket Mokashi <[email protected]> > I am not aware of the difference, can you please elaborate? That would help > other users too [+user@pig?]... > > Thanks, > Aniket > > On Tue, Jun 19, 2012 at 9:57 PM, Jonathan Coveney <[email protected] > >wrote: > > > I cannot tell you the number of scripts I have had die because of this, > and > > the mass confusion it causes. Is there any reason why we can't just have > > > > "thing as alias:type" and "(type)thing as alias" be synonymous? > > > > > > -- > "...:::Aniket:::... Quetzalco@tl" >
