On 2005-05-29, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Alvaro Herrera <alvherre(at)surnet(dot)cl> writes:
>> On Sun, May 29, 2005 at 11:47:18AM -0400, Tom Lane wrote:
>>> Anyone see a reason not to change this?
>> Is there any way we use UNKNOWN to represent bytea literals?
>> Say, comparing a untyped literal to a bytea column?
> We use UNKNOWN to represent the raw string literal before we've
> figured out that we need to feed it to byteain. There aren't
> going to be any embedded nulls at that point, if that's what
> you are wondering.
Are there any cases where UNKNOWN can be received from the frontend as
a binary value? I suspect there are.
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