SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function tryBase58Decode (children 1)
     ExpressionList (children 1)
      Identifier encoded
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 2)
          ExpressionList (children 1)
           Function base58Encode (alias encoded) (children 1)
            ExpressionList (children 1)
             Identifier val
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             Subquery (children 1)
              SelectWithUnionQuery (children 1)
               ExpressionList (children 1)
                SelectQuery (children 1)
                 ExpressionList (children 1)
                  Function arrayJoin (alias val) (children 1)
                   ExpressionList (children 1)
                    Literal Array_[\'\', \'f\', \'fo\', \'foo\', \'foob\', \'fooba\', \'foobar\', \'Hello world!\']