[Exist-open] SOAP under Delphi 7. Xquery "Element does not contain a single text node"

[Pirri <pir...@gm...>]

Hi everybody !

I'm trying to develop a SOAP Module for eXist under Delphi 7


It works all fine, but only have a problem with Xquery SOAP procedure.

When I call xquery, it show this error "Element does not contain a single
text node" ("Project Pexist.exe raised exception class EXMLDocError with
message 'Element does not contain a single text node'. Process stopped.")

The code in delphi is simple.
var
query_a: xqueryResponse;
pquery:xquery;
D: TByteDynArray;


Begin
//declare the query
pquery := xquery.Create;
pquery.sessionId := sesion.connectReturn;


//text query from a memo
  SetLength(d, Length(memo2.Text));
  Move(memo2.Text[1], d[0], Length(memo2.Text));
pquery.xquery := D;

Query_a := (htt as QuerySoap).xquery(pquery); <-- This line produce the
error


Can U explain me why it doesn't work?

The xquery is

for $b in  collection(/db/col1/intro)
where $b//codec = '1234NNN'
return $b//name

it work fine with sandbox.xql

Thanks a lot.