On tis, 2010-01-05 at 10:14 -0800, Scott Bailey wrote:
> One of the problem with shredding XML is that it is very kludgy to get a
> scalar value back from xpath. The xpath function always returns an array
> of XML. So for example, to extract a numeric value you need to:
> 1) use xpath to get the node
> 2) get the first element of the XML array
> 3) cast that to varchar
> 4) cast that to numeric
There has been talk about adding something like xpath_string,
xpath_number, xpath_boolean for fetching xpath expressions that don't
return nodesets. I think that would fit your use case.
