I am building an application with Postrges as the backend foundation. This is my first application and it has struck me that as we add features/functionality to the application and database with each new version, we will need some method of obtaining the current structure of the customers database and then modifying/updating the structure so that it matches the application revision standard. Are there pre-existing tools out there that does this sort of thing ?? My present direction is to create a small SQLite db that has there expected structure, compare each table against the SQL "information_Schema.columns" and the create a series of SQL commands to be executed that would add columns and/or table as needed. -- any thoughts or comments ?
