| From: | Teodor Sigaev <teodor(at)sigaev(dot)ru> |
|---|---|
| To: | Alexander Korotkov <aekorotkov(at)gmail(dot)com> |
| Cc: | Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: GSoC 2011: Fast GiST index build |
| Date: | 2011-05-06 07:04:30 |
| Message-ID: | 4DC39D7E.4040501@sigaev.ru |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
> As I understood it's because we can't move root to another page.
Actually not. Path to node could change completely, For example, for page on
second level path is 0-234 (where 0 is a root page, 234 is a page on second
level). After root split path will be 0-new_page-234.
If algorithm could be able to change root then new path could be looked as
new_root-new_page-234 because old root could be splitted to old_root_page and
new_page.
--
Teodor Sigaev E-mail: teodor(at)sigaev(dot)ru
WWW: http://www.sigaev.ru/
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Magnus Hagander | 2011-05-06 08:06:55 | Re: Why not install pgstattuple by default? |
| Previous Message | Joe Conway | 2011-05-06 06:18:18 | Re: clog_redo causing very long recovery time |