Re: index idea for system catalogs
От | Oleg Bartunov |
---|---|
Тема | Re: index idea for system catalogs |
Дата | |
Msg-id | Pine.GSO.3.96.SK.1000612203545.1244R-100000@ra обсуждение исходный текст |
Ответ на | index idea for system catalogs (Brian E Gallew <geek+@cmu.edu>) |
Список | pgsql-hackers |
On Thu, 8 Jun 2000, Brian E Gallew wrote: > Date: Thu, 8 Jun 2000 11:06:39 -0400 (EDT) > From: Brian E Gallew <geek+@cmu.edu> > Reply-To: geek+postgres@cmu.edu > To: pgsql-hackers@postgresql.org > Subject: [HACKERS] index idea for system catalogs > > For the unique system indexes, does it make sense to do a hash index > instead of the B-tree? > > Also, does it make sense to implement a bitmap index (like Oracle 8i)? > That would work for even non-unique catalogs, although doing it > "right" would be a lot of work. > > Is there interest in me looking at doing bitmap indexes (assuming > someone isn't already working on it)? It would be great to have bitmap indices implemented as in Oracle especially for data with low number of distinct values which cause a problem in current index system. Oleg > > -- > ===================================================================== > | JAVA must have been developed in the wilds of West Virginia. | > | After all, why else would it support only single inheritance?? | > ===================================================================== > | Finger geek@cmu.edu for my public key. | > ===================================================================== > _____________________________________________________________ Oleg Bartunov, sci.researcher, hostmaster of AstroNet, Sternberg Astronomical Institute, Moscow University (Russia) Internet: oleg@sai.msu.su, http://www.sai.msu.su/~megera/ phone: +007(095)939-16-83, +007(095)939-23-83
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