[jira] [Created] (PIG-4883) java.lang.ClassCastException: org.apache.pig.data.BinSedesTuple cannot be cast to java.lang.Long

["swlai (JIRA)" <ji...@apache.org>]

swlai created PIG-4883:
--------------------------

             Summary:  java.lang.ClassCastException: org.apache.pig.data.BinSedesTuple cannot be cast to java.lang.Long
                 Key: PIG-4883
                 URL: https://issues.apache.org/jira/browse/PIG-4883
             Project: Pig
          Issue Type: Bug
    Affects Versions: 0.15.0
            Reporter: swlai


The following code and data will raise an exception.
However, if I remove any of the four "store"s, the code will be fine.

{code:title=test.pig|borderStyle=solid}
r = load 'test.txt' as (id: chararray, val: long);

t1 = filter r by val >= 12 and val < 20;
grpd = group t1 by val;
t1_cnt = foreach grpd generate group as name, COUNT(t1) as value;
t1_cnt = foreach t1_cnt generate (chararray)name, value;
grpd = group t1 all;
t1_cnt_total = foreach grpd generate 't1' as name, COUNT(t1) as value; 

t2 = filter r by val >= 20 and val < 30;
grpd = group t2 by val;
t2_cnt = foreach grpd generate group as name, COUNT(t2) as value;
--t2_cnt = foreach t2_cnt generate (chararray)name, value;
grpd = group t2 all;
t2_cnt_total = foreach grpd generate 't2' as name, COUNT(t2) as value;

store t1_cnt  into 'outx/3';
store t2_cnt  into 'outx/4';
store t1_cnt_total into 'outx/5';
store t2_cnt_total into 'outx/6';
{code}
and
{code:title=test.txt|borderStyle=solid}
c	12
{code}


will cause error:
Caused by: java.lang.ClassCastException: org.apache.pig.data.BinSedesTuple cannot be cast to java.lang.Long
        at org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.POCast.getNextString(POCast.java:1167)
        at org.apache.pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator.getNext(PhysicalOperator.java:343)
        ... 14 more


I don't know why the code need to cast a BinSedesTuple to Long.




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