🚀 go-pugleaf

Well, I'd like to thank all the people who responded to our original query.
I have emailed responses to those who contacted me. Some people were interested
to know what I have learned, so here's a summary:

N. Tachibana <tachi@wm120_no0.rinfo.sumiden.co.jp>
posted a response concerning their Prolog Compiler 'E-prolog'
which has an interface with INGRES.

<bimbart@uucp.kulcs> states that BIM-Prolog supports an almost full 
Ingres interface. Suggested contacts: ben@sunbim.uucp and anne@kulcs.uucp.

Chris Moss <cdsm@uk.ac.ic.doc> has some software produced by a student which
could be used as a starting point.

<jorge%uucp.ecrcvax@de.uni-dortmund.informatik.unido> pointed to their product
MegaLog (a new version of KB Prolog).

<timos%edu.umd.mimsy@edu.umd.cs.mykines> stated that they have done something
like this at the University of Maryland, reported in the June 1988 issue of
ACM SIGMOD record.

<steven@uk.ac.ed.epistemi> indicated that NU-Prolog has a facility for external
databases which may be sufficient. This module is fast, and interfaces to SQL
and Unify. He suggests writing to mip@oz.munnari.

I have tried to keep this summary terse. I would like to say again that
I am most grateful for the response I have received.

THANKS!
Andrew