Re: Why Not MySQL? - Mailing list pgsql-hackers

From Marten Feldtmann
Subject Re: Why Not MySQL?
Date
Msg-id 200005031757.TAA03161@feki.toppoint.de
Whole thread Raw
In response to Re: Why Not MySQL?  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
> "Mitch Vincent" <mitch@huntsvilleal.com> writes:
> 
> Well, there's still a cost to having a lot of seldom-used indexes,
> because the planner has to sit there and consider whether to use each
> one for each query.  So I'd still recommend looking at your mix of
> queries and only creating indexes that match reasonably commonly-used
> WHERE clauses.
> 
When doing insert/updates on larger tables (>500.000 entries) these
indexes are also time consuming !
For our vertical attribute object storage systems we noticed, that
the time for insert/updates are the critical part - they behave very
linear in our test suite and they seem to be the limiting factor in
our system.

Marten




pgsql-hackers by date:

Previous
From: "Hiroshi Inoue"
Date:
Subject: RE: psql \l error
Next
From: Tom Lane
Date:
Subject: Re: psql \l error