deductive databases in postgreSQL

Hi all,<br /><div class="gmail_quote"><br />We're looking for a deductive database for our application. Oracle, in the
11gversion, has extended its RDBMS with deductive capabilities, supporting a subset of OWL-DL[1]. They are able to load
anontology, perform the inferences, dump the inferred info in the database and after that answer queries with the
assertedplus the inferred info. <br /><br />We would like to have similar functionalities in PostgreSQL. Do you know if
there'ssomeone working on that or if there are plans to support it soon?. If not, what do you think is the best and
mostefficient way of implementing it?<br /><br />Thank you very much in advance,<br /><br />Carlos<br /><br />[1]: <a
href="http://www.oracle.com/technology/tech/semantic_technologies/index.html"
target="_blank">http://www.oracle.com/technology/tech/semantic_technologies/index.html</a><br/></div><br />