The main trouble is that even if a better alternative is suggested, how convince the RDBMS developers to use it? Unfortunately, RDBMS are highly coupled. I rem

The main trouble is that even if a better alternative is suggested, how convince the RDBMS developers to use it? Unfortunately, RDBMS are highly coupled. I remember when someday I ask if is possible to remove the SQL part of sqlite and substitute with my own, and get laughed! RDBMS are "expected" to be a black box enclosed in dark mystery.