title: How to insert blob using knex?
body: <p>Currently, I have an upload system using ng-file-upload to another server, which is working well thanks to CORS.</p>
  
  <p>To manage my database I use knex (migrations and seed), and I have a specific table with a bytea column.</p>
  
  <p>PostgreSQL database.</p>
  
  <p>to make upload possible, I've added the busboy module to allow express to manage multipart requests, and the file is being saved to the disk with no problem.</p>
  
  <p>but what I really want is to save it in the table, in the bytea column, and right now I'm with no luck on such quest.</p>
  
  <p>Any guidance and better documentation are welcome.</p>