The in-RAM aspect of OpenCog uses our own custom Atomspace code... For persistence to disk we use mainly postgres now, which works fine... there is also a prototype Neo4j backing-store, which is less complete and less tested...
Neo4j has a more restrictive license than postgres which is undesirable from an OSS perspective. HGDB might be a good option to explore, it's a hypergraph database with a better OSS license... A big to-do for the future is to make a variety of Pattern Matcher queries run against (some) backing store ... this would be done in the Neo4j universe by auto-translating PM queries into Cypher queries, and in the Postgres universe by auto-translating PM queries into postgresql queries (and building appropriate indexes in postgres to make these queries not insanely slow) ben On Tue, May 9, 2017 at 1:25 PM, AmeBel <[email protected]> wrote: > https://github.com/opencog/opencog-neo4j > > On Tuesday, May 9, 2017 at 5:19:45 AM UTC+8, Dmitry Ponyatov wrote: >> >> I see odbc-postgresql & postgresql-client @ >> https://github.com/opencog/ocpkg/blob/master/debian/install-debian-dependencies.sh >> >> I'm surprised why pgsql used ? >> opencog nature tends to use some noSQL graph databases like neo4j > > -- > You received this message because you are subscribed to the Google Groups > "opencog" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/opencog. > To view this discussion on the web visit > https://groups.google.com/d/msgid/opencog/c5973dcd-57c4-43b0-aaee-ecede0a9f19f%40googlegroups.com. > > For more options, visit https://groups.google.com/d/optout. -- Ben Goertzel, PhD http://goertzel.org "I am God! I am nothing, I'm play, I am freedom, I am life. I am the boundary, I am the peak." -- Alexander Scriabin -- You received this message because you are subscribed to the Google Groups "opencog" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/opencog. To view this discussion on the web visit https://groups.google.com/d/msgid/opencog/CACYTDBd1hYkGv1F4tUHj_N6t74rRo3j-B_gZSxNSrBYHFd45Dw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
