CreateQuery tp (children 3)
 Identifier tp
 Columns definition (children 2)
  ExpressionList (children 1)
   ColumnDeclaration x (children 1)
    DataType int
  ExpressionList (children 1)
   Projection (children 1)
    ProjectionSelectQuery (children 1)
     ExpressionList (children 1)
      Function sum (children 1)
       ExpressionList (children 1)
        Identifier x
 Storage definition (children 3)
  Function MergeTree
  Identifier x
  Set