Sorry,guys, my mistakes, the keywords list should be sorted , and I just append xmlquery at the end of keyword list , that is why parser does not call makexmlexpr.Instead, the parser try to find a function to match xmlquery and faild.
2009/12/31 fangfang liu <yisuoyanyu...@gmail.com> > thanks for Xquery info, I do not start to implenment the xmlquery() itself > , maybe call xqilla lib or sth else in the future. > I think xmltable is almost equal to xmlquery , except that it retuns > talbeset insead of xml. > > I take xmlconcat as an example , add xmlquery whereever xmlconcat > appers and nothing else. > the first problem is , I have to make xmlquery accepted by the parser. > > 2009/12/31 Andrew Dunstan <and...@dunslane.net> > > >> >> fangfang liu wrote: >> >>> you mean create and replace funtion xmlquery()? >>> maybe you are right, but I still want to know why parser does not find >>> xmlquery. >>> >>> >>> >> We would have to see your code to know why it didn't do what you expect. >> >> What exactly are you intending that this function would do anyway? If >> you're looking at XQuery support, there are serious issues regarding what >> library to use, see < >> http://archives.postgresql.org/pgsql-hackers/2009-11/msg01445.php> >> >> cheers >> >> andrew >> > >
