How to output SeqFile

[gaurav jain]

How can I produce a sequence file from query 

insert overwrite directory ....


I have set:

SET io.seqfile.compression.type=BLOCK;
SET hive.exec.compress.output=true;
set mapred.output.compression.type=BLOCK;  
set mapred.output.compression.codec=org.apache.hadoop.io.compress.GzipCodec;



It seems to produce Text .gz format files.



Regards,
Gaurav Jain