Re: sequence indexes

"Zeugswetter Andreas SB SD" <ZeugswetterA@spardat.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