Postgres xmlelement encoding

Question

My postgres database in UTF-8 and client in UTF-8 too.
When i try to:

select xmlelement(name pampam, xmlattributes('русский' as "top"));

I get back:

<pampam top="&#x440;&#x443;&#x441;&#x441;&#x43A;&#x438;&#x439;"/>`  

But i want get back attribute as is( i.e. in Russian UTF-8), not as &#x440....
How i can do this?

---

This is not solve problem, I use xmleliment to construct xml from data get back by queries. And i can't find another way to do this...

Answer 1

This doesn't appear to be possible. The values to print are passed to libxml, and that's how it chooses to print it.

Answer 2

I have just created a character entity to character conversion function, entity2char:

select
    xmlparse(content
        entity2char((
            xmlelement(name pampam, xmlattributes('русский' as "top"))
        )::text)
    );
        xmlparse         
-------------------------
 <pampam top="русский"/>

Answer 3

I used plpythonu to write function using lxml

CREATE OR REPLACE FUNCTION xmlelementpy (
              nodename_in varchar,
              nodetext_in text,
              attrname_in varchar [],
              attrvalue_in varchar []
)
RETURNS xml AS
$body$
from lxml import etree
noattr = 0
isxml = 1
if (attrname_in is None) or (attrname_in is None):
    noattr = 1
elif len(attrname_in) <> len(attrvalue_in):
    return None;

newnode = etree.Element(nodename_in)
if nodetext_in is not None:
    try: 
        schema = etree.fromstring(nodetext_in)
    except: 
        newnode.text = nodetext_in
        isxml = 0
    if isxml <> 0:
        newnode.append(etree.XML(nodetext_in))

if noattr <> 1:
    for i in range(len(attrname_in)):
        if (attrvalue_in[i] is not None):
            attrvalue = attrvalue_in[i].decode('UTF-8')
            newnode.set(attrname_in[i], attrvalue)

return etree.tounicode(newnode, pretty_print=True)
$body$
LANGUAGE 'plpythonu'
VOLATILE
CALLED ON NULL INPUT
SECURITY INVOKER
COST 100;

Answer 4

Probably it is not the best solution but this works for me:

SELECT xmlparse(CONTENT '<element attribute=''áéíóú´ñÇ`''>value</element>')

I get back:

<element attribute='áéíóú´ñÇ`'>value</element>