register $zebraJar;
--fs -rmr $outputDir


a1 = LOAD '$inputDir/25Munsorted3' USING org.apache.hadoop.zebra.pig.TableLoader('count,seed,int1,str2');
a2 = LOAD '$inputDir/25Munsorted4' USING org.apache.hadoop.zebra.pig.TableLoader('count,seed,int1,str2');

sort1 = order a1 by str2;
sort2 = order a2 by str2;

--store sort1 into '$outputDir/strsorted1' using org.apache.hadoop.zebra.pig.TableStorer('[count,seed,int1,str2]');
--store sort2 into '$outputDir/strsorted2' using org.apache.hadoop.zebra.pig.TableStorer('[count,seed,int1,str2]');

rec1 = load '$outputDir/strsorted1' using org.apache.hadoop.zebra.pig.TableLoader();
rec2 = load '$outputDir/strsorted2' using org.apache.hadoop.zebra.pig.TableLoader();

joina = LOAD '$outputDir/strsorted1,$outputDir/strsorted2' USING org.apache.hadoop.zebra.pig.TableLoader('count,seed,int1,str2', 'sorted');
    
joinaa = order joina by str2;

store joinaa into '$outputDir/union3' using org.apache.hadoop.zebra.pig.TableStorer('[count,seed,int1,str2]');