customConstraintOperator

Sets the custom constraint operator code to return to SQLite.

By default, if VirtualTable.findFunction returns a non-null function, one is returned to SQLite to indicates that the function is overloaded, and zero is returned otherwise.

If a custom code is set, it is returned, with the scalar function, instead of the default one. However, if no scalar function is returned but a custom code is set, then an exception is thrown.

Note that this replaces any code from a previous call to customConstraintOperator.