Good Morning, On Tue, May 17, 2022 at 8:55 AM gzh <gzhco...@126.com> wrote:
> Hi, > > > -------------------------------------------------------------------------------- > > ERROR: function to_date(timestamp with time zone, unknown) does not exist > > LINE 1: SELECT to_date(now() + '-7day', 'YYYY-MM-DD') > > ^ > > ********** Error ********** > > > Of course, the most reliable way to deal with it is to > > rewrite the application or SQL to handle types strictly, > > but the application is large and rewrite is a terrible job. > > > Is there any easy way to maintain compatibility? > > Just create the missing function create function to_date(timestamp with time zone, text) RETURNS text AS 'SELECT to_date($1::text, $2)::text' LANGUAGE SQL IMMUTABLE; (see https://www.db-fiddle.com/f/w5WYLgsiFLv3jm7hhJ7dsH/0 for a working example) John
