register /grid/0/dev/hadoopqa/jars/zebra.jar;
a1 = load '1.txt' as (a:int, b:float,c:long,d:double,e:chararray,f:bytearray,r1(f1:chararray,f2:chararray),m1:map[]);

a2 = load '2.txt' as (a:int, b:float,c:long,d:double,e:chararray,f:bytearray,r1(f1:chararray,f2:chararray),m1:map[]);

a1order = order a1 by a,b;
a2order = order a2 by a,b;


d = foreach a2order  generate a,b;
store a1order into 'p11' using org.apache.hadoop.zebra.pig.TableStorer('[a,b];[d,e,f,r1,m1]');
store d into 'p21' using org.apache.hadoop.zebra.pig.TableStorer('[a,b]');

rec1 = load 'p11' using org.apache.hadoop.zebra.pig.TableLoader('','sorted');
rec2 = load 'p21' using org.apache.hadoop.zebra.pig.TableLoader('','sorted');
dump rec1;
dump rec2;
--joina = join rec1 by (a,b), rec2 by (a,b) using "merge" ;

--dump joina;
--table merge1 should only have 7 columns from left hand, 2 columns from right hand.
--store joina into 'merge1' using org.apache.hadoop.zebra.pig.TableStorer('');