Craig Ringer <craig@xxxxxxxxxxxxxxxxxxxxx> 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 -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
