| From: | Alexander Korotkov <aekorotkov(at)gmail(dot)com> |
|---|---|
| To: | Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com> |
| Cc: | pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: WIP: Fast GiST index build |
| Date: | 2011-07-18 18:00:34 |
| Message-ID: | CAPpHfdtVJJyinb1TuFF3gw6-YLre2O9svUZgZGAWzogXswP6Bg@mail.gmail.com |
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| Thread: | |
| Lists: | pgsql-hackers |
Hi!
New version of patch is attached. There are following changes.
1) Since proposed tchnique is not always a "fast" build, it was renamed
everywhere in the patch to "buffering" build.
2) Parameter "buffering" now has 3 possible values "yes", "no" and "auto".
"auto" means automatic switching from regular index build to buffering one.
Currently it just switch when index size exceeds maintenance_work_mem.
3) Holding of many buffers pinned is avoided.
4) Rebased with head.
TODO:
1) Take care about ordered datasets in automatic switching.
2) Take care about concurrent backends in automatic switching.
------
With best regards,
Alexander Korotkov.
| Attachment | Content-Type | Size |
|---|---|---|
| gist_fast_build-0.7.0.patch.gz | application/x-gzip | 27.6 KB |
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