Re: xml

I was not accurate. "<tag /><tag />" is not valid xml document - and xpath function doens't like it.

postgres=# select xpath('//tag/@x','<tag x="x"/><tag />'::xml);
ERROR:  could not parse XML document
DETAIL:  line 1: Extra content at the end of the document
<tag x="x"/><tag />
            ^
CONTEXT:  SQL function "xpath" statement 1
postgres=# select xpath('//tag/@x','<x><tag x="x"/><tag /></x>'::xml);
 xpath
-------
 {x}
(1 row)

postgres=# select '<tag x="x"/><tag />'::xml;
         xml        
---------------------
 <tag x="x"/><tag />
(1 row)

Regards

Pavel