ERROR: update or delete on "ftp" violates foreign key constraint "$1"
on "ftp"
DETAIL: Key (ftp_id)=(11) is still referenced from "ftp".
Considering I have several different FTP tables in various schemas, this
message doesn't have much detail. The "Error Message Style Guide" does
not indicate one way or the other whether tables, etc. should be fully
qualified or not. Possibly not in ERROR, but qualified makes sense for
DETAIL.