title: how to combine multiple s3 files into one using Glue
body: <p>I need some help in combining multiple files in different company partition in S3 into one file with company name in the file as one of the column. </p>
  
  <p>I am new and I am not able to find any information also I did spoke to support and they say it is not supported. But in DataStage it is a basic function to combin multiple files into one. 
  Please throw some light
  Regards,
  Prakash</p>