Nhibernate Linq Expression hierarchy

 I am planning to modify the expression tree a little bit.

NHIbernate.Expression.SqlExpression <- root of the expression tree
 - SelectExpression
      -From property(Expression: Another SelectExpression(aka subquery) or
TableReference(should we define Table Expression?)
      -Where property(Expression: (any expression that can be handled,
binary operation with either ColumnExpression or an
AggregateSubqueryExpression)
      -Group by expresison (I cant imagine this part, linq allows more
grouping than one may expect
      -Orderby expresion( can be an aggregatesubquery or a column expression
together with ascending or descending flag)
   - join expression
       - leff - sql expression
       - right - sql expression
       - join condition == conditional expression

I have to admit that I have been affected by Wayward's posts

http://blogs.msdn.com/mattwar/

-- 
Tuna Toksöz

Typos included to enhance the readers attention!

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