| From: | Peter Geoghegan <pg(at)bowt(dot)ie> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Anastasia Lubennikova <a(dot)lubennikova(at)postgrespro(dot)ru>, Heikki Linnakangas <hlinnaka(at)iki(dot)fi> |
| Subject: | Re: Enabling B-Tree deduplication by default |
| Date: | 2020-01-30 22:18:14 |
| Message-ID: | CAH2-WznoUZGrWAq98+bquKad8G9XyioeU7_g-G8acapekKp83g@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Thu, Jan 30, 2020 at 2:13 PM Peter Geoghegan <pg(at)bowt(dot)ie> wrote:
> My approach to showing the downsides of the patch wasn't particularly
> obvious, or easy to come up with. I could have contrived a case like
> the insert benchmark, but with more low cardinality non-unique
> indexes.
Sorry. I meant with more *high* cardinality indexes. An exaggerated
version of the original insert benchmark.
--
Peter Geoghegan
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