| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | "Zeugswetter Andreas SB SD" <ZeugswetterA(at)spardat(dot)at> |
| Cc: | "Vince Vielhaber" <vev(at)michvhf(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: sequence indexes |
| Date: | 2002-01-25 22:05:46 |
| Message-ID: | 6862.1011996346@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
"Zeugswetter Andreas SB SD" <ZeugswetterA(at)spardat(dot)at> writes:
>> I've looked at the problem a little bit --- there's literature more
>> recent than Lehmann-Yao that talks about how to do btree compaction
>> without losing concurrency. But it didn't get done for 7.2.
> Yes, there must be. Informix handles this case perfectly.
> (It uses a background btree cleaner)
Right, I had hoped to fold it into lazy VACUUM, but ran out of time.
(Of course, had I known in August that we'd still not have released
7.2 by now, I might have kept after it :-()
regards, tom lane
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