Michael Rasmussen <michaelr@xxxxxxxxx> writes: > I have encountered an issue in testing our upgrade from 9.4.4 to 9.6.1. Per the changes detailed in https://www.postgresql.org/message-id/E1aGVwY-0002Pu-Uk%40gemulon.postgresql.org, the argument types of the to_reg*() functions were changed from cstring to text. Right. > I am now faced with having to support both 9.4 and 9.6 as we will not be upgrading all servers simultaneously. The solution I have come up with is to use if-else statements that check the numeric version of the cluster the function is installed on. An example: Personally, I'd try to convert everything to new style, and put a shim function into pre-9.6 deployments only. This seems to work: create function to_regclass(text) returns regclass language sql as 'select to_regclass($1::cstring)'; regards, tom lane -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
