On Thursday 05 August 2004 04:43 pm, Hicham G. Elmongui wrote:
> In "join_selectivity" function (plancat.c), a function call is made to
> "OidFunctionCall4" (fmgr.c), which in turn calls a function pointer.
>
> In need to know what is the actual function being called from
> OidFunctionCall4 if the selectivity of mergejoin is the one required from
> join_selectivity.
>
I'm no expert, but I can tell you from experience with the database that my
first impression is that it is calling a function in the database (stored
in pg_proc table or something like that).
--
Jonathan Gardner
jgardner@jonathangardner.net