AWS Glue generating multiple files instead of one

Hello,

I'm using a glue studio to do some custom transformation that I have in csv files and it's basically having a scheme as I'm sending here.

After run the job, I notice that the logic is correct but is generating multiple files with the naming like "part" etc. I suppose it's due some parallel processing. But could I configure to have one output file only, for each document I have in my input folder?

Cheers, Tassio