Neophytos,
OpenFTS looks promising, but can you tell me,
What do you mean by PostgreSQL-based and what is the domain of OpenFTS? In other words, is OpenFTS "limited" to searching only Postgres databases? If not, what is the effort required to enable OpenFTS to crawl other databases?
I ask as it is my understanding that OpenACS is intended to be somewhat database neutral, and I am trying to understand when an OpenFTS solution is appropriate and when it is not.
Thanks,