Skip site navigation (1) Skip section navigation (2)

Re: increasing collapse_limits?

From: Greg Stark <gsstark(at)mit(dot)edu>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: increasing collapse_limits?
Date: 2011-04-30 23:53:04
Message-ID: BANLkTikP66KizPDXsvqCtibYLCfXxS7yBw@mail.gmail.com (view raw or flat)
Thread:
Lists: pgsql-hackers
On Sat, Apr 30, 2011 at 9:21 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> - it would require a query in which
> every relation is linked to every other relation by a join clause.
> But that *can* happen (remember that clauses generated by transitive
> equality do count).

It sounds like you're describing precisely a "star schema" join which
isn't an uncommon design pattern at all.

-- 
greg

In response to

Responses

pgsql-hackers by date

Next:From: Mark KirkwoodDate: 2011-05-01 00:10:31
Subject: Re: increasing collapse_limits?
Previous:From: Tom LaneDate: 2011-04-30 22:48:39
Subject: Re: Proposed patch: Smooth replication during VACUUM FULL

Privacy Policy | About PostgreSQL
Copyright © 1996-2014 The PostgreSQL Global Development Group