Add a test for s3 gzip prefix files to redshift
Add a test for s3 gzip prefix files to redshift

alexmojaki/odo,ContinuumIO/odo,Dannnno/odo,ContinuumIO/odo,quantopian/odo,blaze/odo,Dannnno/odo,blaze/odo,cowlicks/odo,cpcloud/odo,cpcloud/odo,cowlicks/odo,alexmojaki/odo,quantopian/odo