[Squirrel-sql-develop] help: free db with rowid?

[Glenn <gw...@co...>]

As part of the "edit data in the table" work, I would like to make use 
of the "rowid" mechanism in databases that provide it. Since I'm working 
on this at home, I don't have access to Oracle or any other commercial 
DB, so...

Does anyone know of a free DB on Linux that:
	- has a pseudo-column containing a unique id for each table row
	- makes that pseudo-column name available through getBestRowIdentifier?

I have PostgreSQL, which has a pseudo-column called OID, but the JDBC 
driver currently seems to return null for getBestRowIdentifier.

Anyone know of other free DBs that use a "rowid"-like pseudo-column?

Thanks.

Glenn