Are you the author? OT but I'm amazed the author charged merely 100 euro for implementing that solution for the subject startup, even if they're cash-strapped.

Are you the author? OT but I'm amazed the author charged merely 100 euro for implementing that solution for the subject startup, even if they're cash-strapped. I'm not familiar with BigQuery, but I'm curious what a normal rate for solving that issue would look like.