On Tue, Jun 27, 2000 at 12:06:44PM -0700, Robert A. Knop Jr. wrote:
> If one uses libpq functions such as PQfname, should one free the returned
> character string?
>
[...]
> This is explicitly answered in the documentation for PQgetvalue (it's a
> pointer into the PGresult data), so I'm assuming thatt he same applies for
> PQfname. Please let me know if this is a foolish assumption.
>
It does correspond to the general style of the interface -- and peeking
into the implementation...
====================================================================== /* returns NULL if the field_num is
invalid */ char * PQfname(PGresult *res, int field_num) { if (!check_field_number("PQfname",
res,field_num)) return NULL; if (res->attDescs) return
res->attDescs[field_num].name; else return NULL; }
======================================================================
(from src/interfaces/libpq/fe-exec.c; it's version 6.5.3, but I don't
think it has changed) confirms the conjecture.
Regards
--
tomas