| From: | Anastasia Lubennikova <lubennikovaav(at)gmail(dot)com> |
|---|---|
| To: | "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | [PATCH] Microvacuum for gist. |
| Date: | 2015-07-30 11:51:16 |
| Message-ID: | CAP4vRV6FcKVOpPxs_9L327FpTWz75Ly=JRUeY-W89amS19BzwQ@mail.gmail.com |
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| Lists: | pgsql-hackers |
Hi,
I have written microvacuum support for gist access method.
Briefly microvacuum includes two steps:
1. When search tells us that the tuple is invisible to all transactions it
is marked LP_DEAD and page is marked as "has dead tuples",
2. Then, when insert touches full page which has dead tuples it calls
microvacuum instead of splitting page.
You can find a kind of review here [1].
[1]
http://www.google-melange.com/gsoc/proposal/public/google/gsoc2015/ivanitskiy_ilya/5629499534213120
Patch is in attachements. Please review it.
--
Best regards,
Lubennikova Anastasia
| Attachment | Content-Type | Size |
|---|---|---|
| microvacuum_for_gist.patch | application/octet-stream | 12.0 KB |
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