On Mon, May 23, 2011 at 11:08:40PM -0400, Robert Haas wrote: > > I don't really like the idea of adding a GUC for this, unless we > convince ourselves that nothing else is sensible. I mean, that leads > to conversations like this: > > Newbie: My query is slow. > Hacker: Turn on enable_magic_pixie_dust and it'll get better. > Newbie: Oh, yeah, that is better. Why isn't this turned on by default, > anyway? > Hacker: Well, on pathological queries, it makes planning take way too > long, so we think it's not really safe to enable it by default. > Newbie: Wait... I thought you just told me to enable it. It's not safe? > Hacker: Well, sort of. I mean, uh... hey, look, an elephant! >
ROTFL! This needs to go on the wiki somewhere discussing why HACKERs rejects tunable knobs as often as happens. Ross -- Ross Reedstrom, Ph.D. reeds...@rice.edu Systems Engineer & Admin, Research Scientist phone: 713-348-6166 Connexions http://cnx.org fax: 713-348-3665 Rice University MS-375, Houston, TX 77005 GPG Key fingerprint = F023 82C8 9B0E 2CC6 0D8E F888 D3AE 810E 88F0 BEDE -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
