CreateQuery test_set (children 3)
 Identifier test_set
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration i (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType int
 Storage definition (children 1)
  Function Set (children 1)
   ExpressionList
