title: Query csv tables stored s3 through athena
body: <p>Recently we started to store our backups in aws s3. It is all csv files that we need to query through aws athena. 
  We tried to insert the tables one by one but it's taking too long, it is a fair amount of data. Is there any API that we can use or something that is alredy set?
  we were about to do something with spark, but maybe there is a simpler way, or something that's already have been done.
  thanks</p>