Hitoshi Harada wrote: > 2009/1/15 Bruce Momjian <br...@momjian.us>: > > > > Has this been addressed? > > It is mentioned at > > http://archives.postgresql.org/pgsql-hackers/2008-12/msg01849.php > > * Look at tuplestore performance issues. The tuplestore_in_memory() > thing is just a band-aid, we ought to try to solve it properly. > tuplestore_advance seems like a weak spot as well. > > but not solved yet. It seems to me that to solve this the tuplestore's > inside design should be changed much. In-file state doesn't use memory > any more but it should be re-used for writing buffer, whereas the > current desgin uses BufFile to do it, which causes tell/seek overhead > for repeated put/get operation. And this is not for 8.4, I guess.
Oh, I see it is already on the TODO list; great. I have added reference URL to the TODO. -- Bruce Momjian <br...@momjian.us> http://momjian.us EnterpriseDB http://enterprisedb.com + If your life is a hard drive, Christ can be your backup. + -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
