On 2/22/2016 11:23 AM, Joshua D. Drake wrote:
>> Can someone point me in the right direction per how I would remove the
>> first 25 bytes and the last 2 bytes from a bytea column?
>
> http://www.postgresql.org/docs/9.3/static/functions-binarystring.html
>
> Substring might do it for you.
won't doing it in SQL still result in a BYTEA result which will be
wrapped when dumped via COPY ?
instead, I think this needs to be done externally to sql, like by piping
the resulting file through something like ...
tail -c +25 infile.dat | head -c -2 > outfile.dat
or doing something in perl or whatever.
--
john r pierce, recycling bits in santa cruz