CONCLUSION AND FUTURE WORK In this paper, we attempt to bring information retrieval back to database management systems. We propose using commercial DBMS as backend to existing full text search engines. Achieving this, today’s search engines directly gain more robust- ness, scalability, distribution and replication fea- tures provided by DBMS. In our case study, we provide a simple system integration of Lucene and MySQL without loss of generality. We build a performance evaluation toolkit and conduct several experiments on real data of an electronic marketplace. The results show that we reach comparable system throughout and re- sponse times of typical full text search engine oper- ations to the current implementation, which stores the index directly in the file system on the disk. In several cases, we even reach much better results which mean that we take the robustness and scala- bility of DBMS on top. Yet, this is only the beginning. We plan on mapping the whole internal index structure into database logical schema instead of just taking the file chunk as the smallest building block. This will solve the restrictive locking problem inherent in Lucene and will definitely boost overall perfor- mance. We also plan on extending our performance evaluation toolkit to work on several sites of a dis- tributed database.