From: Shashank Date <sdate@...>
Date: 2004-11-19T20:33:12+09:00
Subject: Re: In-memory Relational Data Storage

Curt Sampson wrote:
<snip>

> Well, this is a problem we solved forty years ago when Codd came up with
> the idea of relational databases. So, has anybody built some sort of
> relational storage system for Ruby that will let me describe my data in
> some sort of E/R-ish way and get stuff out from any direction I care to use?

You may want to take a look at Metakit (http://equi4.com).
Not exactly relational, but definitely "in-memory".

Quoting from the website:

   " Metakit is an efficient embedded database library with a small
     footprint. It fills the gap between flat-file, relational,
     object-oriented, and tree-structured databases, supporting
     relational joins, serialization, nested structures, and instant
     schema evolution. "

And from an article in Dr.Dobbs (Pg. 65, Dec'04):

     "Metakit databases are called 'storages' and they can either be
      on disk or completely in-memory".

However, there are no Ruby bindings (yet) :-(
-- shanko