[BUG] Spurious namespace declarations in REST API results

[ndw]

This query (posted to REST API for eXist-db 6.4.0 running on a Mac):

<query xmlns="http://exist.sourceforge.net/NS/exist" wrap="no" typed="no">
   <text>&lt;doc&gt;{3+4}&lt;/doc&gt;</text>
</query>

returns

<doc>7</doc>

but this query:

<query xmlns="http://exist.sourceforge.net/NS/exist" wrap="no" typed="no">
   <text>&lt;doc&gt;7&lt;/doc&gt;</text>
</query>

returns

<doc xmlns="http://exist-db.org/xquery/types/serialized">7</doc>

[adamretter]

@ndw Hi there Norm, thanks for the report. I have tried to reproduce your issue, but so far I am unable to do so.

I am trying the following:

$ echo '<query xmlns="http://exist.sourceforge.net/NS/exist" wrap="no" typed="no"><text>&lt;doc&gt;7&lt;/doc&gt;</text></query>' | curl -vv -X POST --header "Content-Type: application/xml" --data @- http://localhost:8080/exist/rest/db

which gives me:

* Host localhost:8080 was resolved.
* IPv6: ::1
* IPv4: 127.0.0.1
*   Trying [::1]:8080...
* Connected to localhost (::1) port 8080
> POST /exist/rest/db HTTP/1.1
> Host: localhost:8080
> User-Agent: curl/8.7.1
> Accept: */*
> Content-Type: application/xml
> Content-Length: 119
>
* upload completely sent off: 119 bytes
< HTTP/1.1 200 OK
< Date: Wed, 08 Oct 2025 13:57:45 GMT
< Content-Type: application/xml; charset=UTF-8
< Transfer-Encoding: chunked
< Server: Jetty(9.4.57.v20241219)
<
* Connection #0 to host localhost left intact
<doc>7</doc>

I have also tried flipping the wrap and typed attributes to yes, but this also doesn't seem to produce the additional xmlns="http://exist-db.org/xquery/types/serialized" that you described.

Can you tell me what I am missing please?

[ndw]

I'll spin things back up asap and see if I can provide more detail.

[ndw]

Alas, I can't reproduce it now either. :-(

[adamretter]

@ndw Okay thanks for confirming :-)