| From: | Simon Riggs <simon(at)2ndQuadrant(dot)com> |
|---|---|
| To: | Heikki Linnakangas <hlinnakangas(at)vmware(dot)com> |
| Cc: | Alexander Korotkov <aekorotkov(at)gmail(dot)com>, Greg Stark <stark(at)mit(dot)edu>, Atri Sharma <atri(dot)jiit(at)gmail(dot)com>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Fractal tree indexing |
| Date: | 2013-02-13 14:01:00 |
| Message-ID: | CA+U5nM+iO3MM_T_C8J6k9ZKv-xOjGLgxS4V7gSL+vnv6z_RaqA@mail.gmail.com |
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| Lists: | pgsql-hackers |
On 13 February 2013 13:35, Heikki Linnakangas <hlinnakangas(at)vmware(dot)com> wrote:
> You could have a generic WAL record that applies changes to multiple pages
> atomically.
I think its a good idea, the best idea even, but we still have no idea
what the requirements are without a clear case for an external index.
It could easily turn out that we invent a plausible API that's not
actually of use because of requirements for locking. Whoever wants
that can do the legwork.
IIRC each of the new index types has required some changes to the
generic APIs, which makes sense.
--
Simon Riggs http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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