by clemens (27.10.2021)

Do not log all queries as debug in Ecto

tl;dr

Ecto by default logs all queries as debug to the console when developing. To disable simply add log: false to your ecto config.

I.e. in your config/dev.exs:

config :ldcards, Cards.Repo,
  adapter: Ecto.Adapters.Postgres,
  ...
  pool_size: 10,
  log: false