Update inheritance constraint items:

< 	o %Prevent child tables from altering or dropping constraints
<           like CHECK that were inherited from the parent table
< 	  like CHECK that are inherited by child tables
<
< 	  Dropping constraints should only be possible with CASCADE.
<
> 	  like CHECK that are inherited by child tables unless CASCADE
> 	  is used
> 	o %Prevent child tables from altering or dropping constraints
>           like CHECK that were inherited from the parent table