CreateQuery nest_2 (children 3)
 Identifier nest_2
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration nested_field (children 1)
    DataType Nested (children 1)
     ExpressionList (children 1)
      NameTypePair e1 (children 1)
       DataType Int32
 Storage definition (children 2)
  Function MergeTree (children 1)
   ExpressionList
  Identifier nested_field.e1
