Sugestion: xpath

marcoduarte@bndes.gov.br writes:

I think it is good idea make a function returning set of records,
like xpath_table, but accepting xml data in a text paramiter.
Today if you have a function with a xml parameter, you have to save it in
a table to use xpath.

I believe you're mistaken. Why would you need to put the value into
a table?

regards, tom lane