contraints on a virtual table when the virtual table sets the omit flag.
The logic has been incorrect since row-values were added. However, this
does not come up often as very few virtual tables implement inequality
constraints using the omit flag. Ticket [f096d191b6641daa]
FossilOrigin-Name: b7810062ec2489e1c5ca6638dbeb0892e4ce376c5c1834a31d1a332ebab8a871