SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function arraySort (children 1)
     ExpressionList (children 1)
      Function h3kRing (children 1)
       ExpressionList (children 2)
        Identifier h3_index
        Identifier k
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier h3_indexes
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier h3_index