I loaded up the demo and am impressed with what you'e achieved. However I cannot find any way to add column restraints, or mention of how to do so in any of the

I loaded up the demo and am impressed with what you'e achieved. However I cannot find any way to add column restraints, or mention of how to do so in any of the documentation. Is there really no way to mark a column as "not null" or make a unique id that auto generates, or say a date column that gets set on insert? I don't think these are very advanced features to ask of a SQL database and am confused why they appear to be missing.