SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function h3Distance (children 1)
     ExpressionList (children 2)
      Function stringToH3 (children 1)
       ExpressionList (children 1)
        Identifier start
      Function stringToH3 (children 1)
       ExpressionList (children 1)
        Identifier end
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier h3_indexes
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier id