How ugly would this be? (ALTER DATABASE)

Hello,

One of the things we run into quite a bit is customers who are using 
multiple databases when they should be using multiple schemas. I am sure 
other consultants run into this as well. This gets even more difficult 
as uptime requirements have become all but 100%. So my question is, what 
would this take?

ALTER DATABASE foo LOCATION DATABASE bar SCHEMA baz?

Where if we execute that command, database foo would move to schema baz 
within database bar?

I am fully aware of what it takes on the client side but structurally 
within postgres what would it take? Is it even reasonable?

JD
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