Hello,
Lately I think Alex has been working on a new DBSQL module that works better with several non-mysql databases. I've been waiting to see what he produces before contributing any more changes myself. In the meantime, I've developed a system similiar to Links SQL based on custom on perl and Postgres SQL to use with
www.skatepark.org It's a lot clunkier than Links SQL both inside and out, and has a lot less features, but its working for me at the moment.
I may one day package it up and release it for others, but I doubt I'll ever try to add in a layer that would make it compatible with databases other than Postgres.
I should note that this project is not intended to compete with Links SQL at all. Links SQL will probably continue to have higher quality and more features for the foreseeable future.
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http://mark.stosberg.com/