Hi, I am trying create a new access method for the PostgreSQL. Reading the manual, I learned that must implement 12 functions (build, insert, gettuple, beginscan, ...). In the begin its OK. As soon as I type the command 'CREATE INDEX' the function 'build' is call and the index is create. When I call the command 'INSERT' all its OK too. The problem is when I do some query. NEVER its call the 'beginscan', 'gettuple' or another function that is related with a query, that is, in the querys my index do not being used. What it can be causing this?