Tom Lane wrote: > OT_WHOLE_LINE is not what you want because that results in verbatim > copying, without variable expansion or anything
But if we want to implement "\if defined :foo" in the future isn't it just what we need? Also we could leave open the option to accept an SQL expression here. I expect people will need SQL as the evaluator in a lot of cases. So far we need to do that: SELECT sql_expr ... AS varname \gset \if :varname ... \endif Surely users will wonder right away why they can't write it like this instead: \if (sql_expr) ... \endif There's a precedent with \copy accepting a query inside parentheses, using OT_WHOLE_LINE. Best regards, -- Daniel Vérité PostgreSQL-powered mailer: http://www.manitou-mail.org Twitter: @DanielVerite -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
