*** 222,226 **** *: retrieve the constraint's text *: determine which columns participate in the constraint *: disable and enable the constraint ! possibly via a new PRAGMA. --- 222,232 ---- *: retrieve the constraint's text *: determine which columns participate in the constraint *: disable and enable the constraint + *: remove, add, and update the constraint ! possibly via a new PRAGMA. This allows programs to more completely ! ! *: discover the current state of the schema ! *: evolve the schema (e.g., update out-of-date parts of it) ! ! ====