Thanks for reply Cheolsoo What's the output of describe A and B?
Output of A and B are not identical. If the schema of A and B are not identical, union will type-cast fields to merge them http://pig.apache.org/docs/r0.11.1/basic.html#union > I would try to find which fields pig tries to cast to bytearray while > merging them. Casting anything to bytearray is invalid resulting this error: I don't exactly understand the above point. Is it some thing related to PIG 2493 https://issues.apache.org/jira/browse/PIG-2493 This is resolved in pig 0.10 ?? cannot cast to byte array Thanks, Cheolsoo > > On Sat, Jun 15, 2013 at 7:48 PM, abhishek dodda > <[email protected]>wrote: > >> hello, >> >> I am doing this >> >> DEFINE AVRO_LOAD org.apache.pig.piggybank.strorage.avro.AvroStorage(); >> >> A = load '/user/abhi/a.txt' using AVRO_LOAD; >> >> B = load '/user/abhi/b.txt' using AVRO_LOAD; >> >> C = UNION A , B; >> >> here script is failing with the following error >> >> *ERROR org.apache.pig.tools.grunt.Grunt - ERROR 1051 : cannot cast to byte >> array* >> >> In the pig logs the error is >> >> *ERROR 1056 problem while casting inputs of union*. >> >> Script was running fine before, but it is failing now with the above error >> >> Regards >> abhishek >> >> >> On Sat, Jun 15, 2013 at 7:44 PM, abhishek dodda >> <[email protected]>wrote: >> >>> hello, >>> >>> I am doing this >>> >>> DEFINE AVRO_LOAD org.apache.pig.piggybank.strorage.avro.AvroStorage(); >>> >>> A = load '/user/abhi/a.txt' using AVRO_LOAD; >>> >>> B = load '/user/abhi/b.txt' using AVRO_LOAD; >>> >>> C = UNION A , B; >>> >>> here script is failing with the following error >>> >>> ERROR org.apache.pig.tools.grunt.Grunt - ERROR >>
