I need to create indexes on my table which contains four columns.
In this column two are range columns so i know that i can use r tree for this,
but i wanted to know that those other 2 columns which are not range based can they also be used
in building R tree indexes.
Also if i want to extend spatial polygon data object, is that possible ?
like do i have the source available.
Also is it possible to code this datablade modules in Java ?