Alvaro Herrera <alvhe...@2ndquadrant.com> writes: > Tom Lane wrote: >> I think I've heard of scripts grepping the output of pg_controldata for >> this that or the other. Any rewording of the labels would break that. >> While I'm not opposed to improving the labels, I would vote against your >> second, abbreviated scheme because it would make things ambiguous for >> simple grep-based scripts.
> We could provide two alternative outputs, one for human consumption with > the proposed format and something else that uses, say, shell assignment > syntax. (I did propose this years ago and I might have an unfinished > patch still lingering about somewhere.) And a script would use that how? "pg_controldata --machine-friendly" would fail outright on older versions. I think it's okay to ask script writers to write pg_controldata | grep -e 'old label|new label' but not okay to ask them to deal with anything as complicated as trying a switch to see if it works or not. regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers