| From: | Julien Rouhaud <julien(dot)rouhaud(at)dalibo(dot)com> |
|---|---|
| To: | Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, Teodor Sigaev <teodor(at)sigaev(dot)ru>, Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | Haribabu Kommi <kommi(dot)haribabu(at)gmail(dot)com>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Pluggable storage |
| Date: | 2017-06-25 09:38:00 |
| Message-ID: | 62e28066-8063-e1f5-28dc-651adc11ca1b@dalibo.com |
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| Lists: | pgsql-hackers |
On 23/06/2017 16:07, Tomas Vondra wrote:
>
> I think you're probably right - GIN does compress the posting lists by
> exploiting the TID redundancy (that it's page/offset structure), and I
> don't think there are other index AMs doing that.
>
> But I'm not sure we can simply rely on that - it's possible people will
> try to improve other index types (e.g. by adding similar compression to
> other index types).
That reminds me
https://www.postgresql.org/message-id/55E4051B.7020209@postgrespro.ru
where Anastasia proposed something similar.
--
Julien Rouhaud
http://dalibo.com - http://dalibo.org
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