On ons, 2010-05-26 at 11:47 +0100, Mike Fowler wrote: > > The XMLEXISTS function works with XQuery expressions and doesn't have > > the call signature that your patch implements > > Looking at the manuals of Oracle, Derby and DB2 I see how the call > signature differs. I also note that Oracle's implementation is XPath > only, Derby's is partial XQuery and DB2 appears to be full XQuery. > > What do people prefer me to do? I see the options as: > > 1) Change the call signature to match the standard > 2) Change the function name back to xpath_exists
It would be nice to make XMLEXISTS work as in the standard, seeing how many others are providing the same interface. > Should option one be the more popular there's further choices: > > 1) Integrate XQuery support to completely match the standard, however > this will require the addition of a new library libxquery > 2) Leave the XPath as is, inline with Oracle's implementation > 3) Hybrid approach. Since XML is a comple time option, add XQuery as > another. Conditional completion gives the full XQuery support when > available or just the XPath when not I think providing XPath is enough, at least for now. -- Sent via pgsql-hackers mailing list ([email protected]) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
