John Gray wrote: > On Sat, 2006-06-10 at 14:06 -0400, Tom Lane wrote: > > John Gray <jgray@xxxxxxxxxxx> writes: > > > This is the reason why xpath_table allows you to specify an > > > identifying field (usually a primary key but doesn't have to be)- the > > > solution to your question is to join an xpath_table that just fetches the > > > document number against the primary key, e.g.: > > > > John, do you think anything could be done in the pgxml documentation to > > make this usage pattern clearer? > > > > Yes - I'll write a doc patch for this and include an example like this > by way of demonstration - I notice now that this particular feature > (which I went to some lengths to incorporate in the code!) is completely > undocumented. I'll also consider whether another function with different > behaviour in this situation is possible or helpful. > > Give me a few days... FYI, I have not seen a patch for this yet. -- Bruce Momjian bruce@xxxxxxxxxx EnterpriseDB http://www.enterprisedb.com + If your life is a hard drive, Christ can be your backup. +
