SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 5)
   ExpressionList (children 1)
    Identifier i
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier a
   Function notIn (children 1)
    ExpressionList (children 2)
     Identifier _part_offset
     Literal Tuple_(UInt64_1, UInt64_4)
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier i
   Set
