Re: Reducing the size of BufferTag & remodeling forks

From: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
To: Andres Freund <andres(at)anarazel(dot)de>
Cc: Simon Riggs <simon(at)2ndQuadrant(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Reducing the size of BufferTag & remodeling forks
Date: 2016-04-19 18:44:36
Message-ID: 20160419184436.GA740589@alvherre.pgsql
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

Andres Freund wrote:

> I've actually changed course a bit and I'm trying something different: A
> two level structure. One hashtable that maps (RelFileNode, ForkNumber)
> to a 'open relation' data structure, and from there a radix tree over
> just the block number. To avoid having to look up in the hashtable
> frequently there's a pointer in RelationData to a fork's radix tree.

Is this going anywhere, or did you drop the subject altogether?

--
Álvaro Herrera http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

In response to

Responses

Browse pgsql-hackers by date

  From Date Subject
Next Message Peter Geoghegan 2016-04-19 19:24:01 Re: Postgres 9.6 scariest patch tournament
Previous Message Pavel Stehule 2016-04-19 18:00:34 Re: Parser extensions (maybe for 10?)