On Nov 22, 2017, at 5:06 AM, Henrik Cednert (Filmlance) <henrik.cedn...@filmlance.se> wrote: > > When investigating the zlib lead I looked at 8.4 installation and 9.5 > installation. 9.5 includes zlib.h (/Library/PostgreSQL//9.5/include/zlib.h), > but 8.4 doesn't. But that's a header file and I have no idea how that really > works and if that's the one used by pgres9.5 or not. The version in it says > 1.2.8 and that's what the Instruments are showing when I monitor pg_dump > while running. > > Guess I'll have to install instruments in a dev env and do a pg_dump with 8.4 > to see the difference. Tedious. =/
I would also check the library linkages of the pg_dump binaries. See if one thing is using an embedded zlib and the other a system zlib. Then you could imagine one didn't get compiled with the best-performing CFLAGS, etc. Matthew.
