Hi all!
I managed to search in my own database tables, GREAT

It was not easy beacause I did not understand the "JOIN" clause...
Now here is my problem:
What I have understood is that "searchable" lists element to get them at the end, and "displayed" lists elements to be... displayed!!
The "SELECT" query gets some of my columns ("searchable"), but they are not displayed in search results... I wonder if the "displayed" array key works well...
Thanks