select('*') fetches every column — unnecessary egress

What it is

A query selects every column when the caller only uses a few.

Why it matters

Unused columns still cross the wire and count toward egress, and a single large text or JSON column can dominate the response. It also sends data the client had no business receiving.

How to fix it

Name the columns you need — select('id, name, created_at'). Smaller responses are faster and cheaper, and they avoid leaking fields that were never meant for the client.