2016-09-12 6:36 GMT+02:00 Craig Ringer <cr...@2ndquadrant.com>: > On 12 September 2016 at 12:28, Craig Ringer <cr...@2ndquadrant.com> wrote: > >> I'll take a closer read-through shortly. > > >DEFAULT > > isn't a normal literal, it's an xpath expression evaluated at the same > > time as the rowexpression. > > Sorry for the spam, but turns out that's not the case as implemented > here. The docs you referenced say it should be an xpath expression, > but the implementation here is of a literal value, and examples > elsewhere on the Internet show a literal value. Unclear if the > referenced docs are wrong or what and I don't have anything to test > with. > > Feel free to fix/trim the DEFAULT related changes in above docs patch as > needed. > > Also, tests/docs should probably cover what happens when PATH matches > more than one element, i.e. produces a list of more than one match. >
It is there for case, when this is allowed. When you change the target type to any non XML type, then a error is raised. I didn't write a negative test cases until the text of messages will be final (or checked by native speaker). Regards Pavel > > -- > Craig Ringer http://www.2ndQuadrant.com/ > PostgreSQL Development, 24x7 Support, Training & Services >
