Re: Best database structure for timely ordered values

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Reiner Dassing <dassing(at)wettzell(dot)ifag(dot)de>, pgsql-sql(at)postgresql(dot)org
Subject: Re: Best database structure for timely ordered values
Date: 2000-12-18 16:22:20
Message-ID: 200012181622.LAA26713@candle.pha.pa.us
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> Reiner Dassing <dassing(at)wettzell(dot)ifag(dot)de> writes:
> > The primary index must be the epoch.
> > As there will be no deletion from this data I fear - due to the
> > internal representation of B-trees - the performance will degrade very
> > soon.
>
> Nonsense. btree should work just fine for that. Use a timestamp
> column for the primary key, and away you go.
>
> (Actually, time alone doesn't seem like it'd be necessarily unique,
> so maybe you don't want to call it a primary key. But certainly
> you can make a non-unique index on that column.)

I assume the user is concerned about non-balanced btrees. Ours are
auto-balancing.

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