Andrew - Supernews <[EMAIL PROTECTED]> writes: > On 2005-05-29, Tom Lane <[EMAIL PROTECTED]> wrote: >> 2. Backend infers actual type of param 1 from context as BYTEA.
> Hrm. I was thinking of the case where the backend can't necessarily do > this, but in fact in that case the Parse seems to fail. Right, deliberately so, for precisely the reason that we need to know the correct input converters to use. >> Offhand I think the only way you could actually invoke UNKNOWN's binary >> input converter is by executing a PREPARE with a parameter position >> specifically declared as UNKNOWN, viz > Which of course leads to the question of why UNKNOWN has a binary input > converter at all... Maybe it shouldn't. It does need a binary output converter, to avoid gratuitous failures in cases like SELECT 'foo'; so I figure it's probably best to leave the input converter there ... regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 6: Have you searched our list archives? http://archives.postgresql.org