A complete kludge, but perhaps munge the possibly-invalid data through MIME::Base64's encode_base64 and decode_base64 routines into/out of the database? Presuming your columns are large enough to handle the inflation that might be a work around until you figure out the right way to do it.

In reply to Re: Perl and Postgresql: Invalid byte sequence for encoding "UTF8" by Fletch
in thread Perl and Postgresql: Invalid byte sequence for encoding "UTF8" by StoneTable

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