On Mon, Mar 16, 2009 at 11:36 AM, Scott Marlowe <scott.marl...@gmail.com>wrote:
> On Sun, Mar 15, 2009 at 9:00 PM, leopay <leo...@gmail.com> wrote: > > I wanna if there is any defact when use null column in pg, > > e.g. performance issue > > none that I know of. Any more specific scenarios you're wondering about? when do the query, the column contain none value could use the index?
