Re: unsupported frontend protocol

Agreed that the symptom fits a client library mismatch, but the only
thing I moved from the 7.4.3 system to the 7.3.4 system was a pg_dump'ed
database. That can't carry anything that would affect the interaction
between the existing PHP 4.2.2 and PostgreSQL 7.3.4 versions, can it?
They worked without error for many months prior to that database load.

Is there any postmaster logging I can turn on that will detail what's
triggering the error?

John

Tom Lane wrote:

>Not surprising if you are using 7.4 or later client libraries.  Those
>will try to connect using the PG V3 protocol (added in 7.4).  libpq, at
>least, will fall back to the older protocol if V3 doesn't work, but
>I am not sure whether PHP uses libpq.
>
>            regards, tom lane
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