2010/7/26 Robert Haas <robertmh...@gmail.com>: > On Mon, Jul 26, 2010 at 2:09 PM, Pavel Stehule <pavel.steh...@gmail.com> > wrote: >> I understand, but with only text accepting, then CONCAT will has much >> less benefit - you can't do a numeric list, for example >> >> see concat(c1::text, ',', c2::text, ',' ...) >> >> with this is much simpler use a pipes '' || c1 || ',' || c2 ... and >> this operator does necessary cast self. >> >> This function is probably one use case of exception from our rules. > > At least two, right? Because for that use case you'd probably want > concat_ws().
sorry, yes Pavel In fact, it's hard for me to think of a variadic text > function where you wouldn't want the "no casts" behavior you're > getting via ANY. > > -- > Robert Haas > EnterpriseDB: http://www.enterprisedb.com > The Enterprise Postgres Company > -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
