On Fri, Feb 4, 2011 at 1:18 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Jon Nelson <jnelson+pgsql@jamponi.net> writes:
>> I thought 'character varying' (aka varchar) sans length was an alias
>> for text. Is it not?
>
> It has the same behavior, but it is a distinct type, so dummy coercions
> are needed.
Are there any performance implications for this dummy coercion?
Especially in joins.
--
Jon