ClauseList as a column_property

[Former user]

As described in the clauselist as a column_property group mail, the current version doesn't allow ClauseLists as a column property.

[Former user]

Not sure if orig_sit property is actually needed, and of its doc string is correct.

[Mike Bayer]

the orig_set() thing is probably not needed here.

but im thinking that it may be more appropriate here to just have and_(), or_(), etc. return a _CalculatedClause instead of ClauseList. since i think that object is already designed to handle the "list of items which can act like a column" use-case (i.e. it has a "type_" parameter, etc.)

of top importance here is that we have some small test cases. such as:

   x = and_(a, b, c)
   assert x.type is types.Boolean
   assert str(x) == 'a AND b AND c'
   assert str(select([x.label('foo')](x.label('foo')))) == 'SELECT (a AND b AND c) AS foo'

etc.

[Mike Bayer]

since I suddenly had the need for this myself, its fixed in e158234478f3bb17ec90e5dc5a125d0207d2d5fe.

[Mike Bayer]

Removing milestone: 0.5.xx (automated comment)