| From: | David Steele <david(at)pgmasters(dot)net> |
|---|---|
| To: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Simon Riggs <simon(at)2ndQuadrant(dot)com> |
| Cc: | Vladimir Borodin <root(at)simply(dot)name>, Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Improving replay of XLOG_BTREE_VACUUM records |
| Date: | 2016-03-10 00:29:10 |
| Message-ID: | 56E0BFD6.3020907@pgmasters.net |
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| Thread: | |
| Lists: | pgsql-hackers |
On 1/8/16 9:34 AM, Alvaro Herrera wrote:
> Simon Riggs wrote:
>> On 8 January 2016 at 13:36, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> wrote:
>>> I would agree except for the observation on toast indexes. I think
>>> that's an important enough use case that perhaps we should have both.
>> The exclusion of toast indexes is something we can remove also, I have
>> recently discovered. When we access toast data we ignore MVCC, but we still
>> have the toast pointer and chunkid to use for rechecking our scan results.
>> So a later patch will add some rechecks.
> Ah, interesting, glad to hear. I take it you're pushing your patch
> soon, then?
ISTM that this patch should be "returned with feedback" or "rejected"
based on the thread. I'm marking it "waiting for author" for the time
being.
Thanks,
--
-David
david(at)pgmasters(dot)net
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