Heikki, are you going to revise this for 8.4? ---------------------------------------------------------------------------
Heikki Linnakangas wrote: > I've brought the GIT patch up-to-date with CVS head. The latest version > can be found at http://community.enterprisedb.com/git/ > > I also reran the CPU bound test cases with the latest patch. > > I want this in 8.3 in some form, and I have the time to do any required > changes. If someone wants to see more tests, I can arrange that as well. > > The patch is pretty big at the moment. I think the best way to proceed > with this is to extract some smaller, incremental patches from it that > just refactor the current b-tree code. After that, the final patch that > implements GIT should be much smaller and more readable. And there's > still a bunch of todo items there as well... > > But before I start doing that, I need some review and general agreement > on the design. What I don't want to happen is that three days after the > feature freeze, someone finally looks at it and finds a major issue or > just thinks it's an unreadable mess, and we no longer have the time to > fix it. > > One question that I'm sure someone will ask is do we need this if we > have bitmap indexes? Both aim at having a smaller index, after all. The > use cases are quite different; GIT is effective whenever you have a > table that's reasonably well-clustered. Unlike the bitmap indexam, GIT's > effectiveness doesn't depend on the number of distinct values, in > particular it works well with unique indexes. GIT is comparable to > clustered indexes in other DBMSs (in fact we might want to call GIT that > in the end). > > -- > Heikki Linnakangas > EnterpriseDB http://www.enterprisedb.com > > ---------------------------(end of broadcast)--------------------------- > TIP 7: You can help support the PostgreSQL project by donating at > > http://www.postgresql.org/about/donate -- Bruce Momjian <[EMAIL PROTECTED]> http://momjian.us EnterpriseDB http://postgres.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://mail.postgresql.org/mj/mj_wwwusr?domain=postgresql.org&extra=pgsql-hackers
