Hi,
And sorry for that:
Tom Lane a écrit :
> Sylvain Leroux <sl20@wanadoo.fr> writes:
>> It seems to me that the problem is comming from the BYTEA type, not from
>> the prepared statement by itself: As far as I know the only operator
>> supported by BYTEA is concatenation. You can't even compare two BYTEA
>> for (in)equality - even less using the LIKE operator.
>
> Nonsense ...
But I was quite sure to have read that somewhere -- and indeed:
(in "PostgreSQL - second edition / ISBN:978-0-672-32756-8)
"PostgreSQL offers a single BYTEA operator: concatenation. [...]
Note that you can't compare two BYTEA values, even for
equality/inequality. You can of course convert a BYTEA value into
another value using CAST() operator, and that opens up other
operators."
I remember having found that annoying at the time - that's why I
remembered it. But it appears this statement was outdated -- or simple
false all along?
Anyway once again sorry for the misinformation.
Sylvain.
--
Website: http://www.chicoree.fr