I almost got bit by this today: => select email from subscribed where email not in (select email from tracks); email ------- (0 rows) => select email from subscribed where email not in (select tracks.email from tracks); ERROR: column tracks.email does not exist LINE 1: ... email from subscribed where email not in (select tracks.ema... (the "tracks" table doesn't have an "email" column, so the first query is just meaningless) Should there be a warning for the first query that you reference "tracks" in a subquery but don't use any columns from it? -- Seamus Abshere, SCEA https://www.faraday.io https://github.com/seamusabshere https://linkedin.com/in/seamusabshere
