So in case of six exact conditions (With different xpaths) should I see the usage of six indexes?
It always depends on your data. My assumption is that you'll only have one index access in your optimized query.
Sure, I've also responded to it: https://www.mail-archive.com/basex-talk%40mailman.uni-konstanz.de/msg06648.h...
What about the next steps? Have you been successful?...
https://www.mail-archive.com/basex-talk%40mailman.uni-konstanz.de/msg06650.h... https://www.mail-archive.com/basex-talk%40mailman.uni-konstanz.de/msg06651.h...