On Thu, Dec 3, 2009 at 5:15 AM, Glyn Astill <glynastill at yahoo.co.uk> wrote:
> I took a quick peek in slony1_funcs.sql from the 1.2.18 release and the drop_if_exists functionality appears to be in there (although not in the slony1_funcs.vNN.sql scripts). I'm going to do a few more tests before upgrading our servers...
>

Once I added the lines

drop function if exists @NAMESPACE at .ddlScript_complete (int4, text, int4);
drop function if exists @NAMESPACE at .updateReloid (int4, int4);

to slony1_funcs.sql it as was installed, my update succeeded.