[basex-talk] what is the best way to add/replace a lot of documents ?

Dear all at basex,   I am wondering what could be the most efficient way to add/replace a lot of documents (several thousands) at the same time.   I tried db:add/db:replace but this gives heap memory overflow because of the pending list...   Will I have better results with a .bxs with add/replace commands (and autoflush deactivated) ?   Did any other user find his way in this use case ?   Best regards,   Fabrice