hello 2013/2/1 Andrew Dunstan <and...@dunslane.net>: > > What's the best way for me to find out if a given parameter of a function is > a constant? The context is that it's expensive to process, and in most cases > will in fact be a constant, so if it is in fact a constant I'd like to > process it once and stash the results. >
you can look into parser tree see src of get_fn_expr_argtype(fcinfo->flinfo, 0); Regards Pavel > cheers > > andrew > > > -- > Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-hackers -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
