Re: pg_dump far too slow

Craig Ringer <craig@postnewspapers.com.au> writes:
> On 21/03/2010 9:17 PM, David Newall wrote:
>> and wonder if I should read up on gzip to find why it would work so
>> slowly on a pure text stream, albeit a representation of PDF which
>> intrinsically is fairly compressed.

> In fact, PDF uses deflate compression, the same algorithm used for gzip.
> Gzip-compressing PDF is almost completely pointless -

Yeah.  I would bet that the reason for the slow throughput is that gzip
is fruitlessly searching for compressible sequences.  It won't find many.

            regards, tom lane