Re: varchar(n) VS text

[Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>]

Kev <kevinjamesfield(at)gmail(dot)com> writes:
> On Jun 26, 12:16 am, t(dot)(dot)(dot)(at)sss(dot)pgh(dot)pa(dot)us (Tom Lane) wrote:
>> "Pierre Thibaudeau" <pierd(dot)(dot)(dot)(at)gmail(dot)com> writes:
>>> I am puzzling over this issue:
>>> 1) Is there ever ANY reason to prefer "varchar(n)" to "text" as a column type?
>> 
>> In words of one syllable: no.

> If you have any input from untrusted sources (like in a web app)
> wouldn't it be easier to attack the server if you had a text field,
> like by sending a couple TB of data over that pgsql then needs to
> store, on a server that doesn't have that amount of space?

Well, the hard limit on a text field (or any other field) is 1Gb,
so it'd not be quite as easy as that, even assuming that the webapp
doesn't fall over first.

			regards, tom lane