Re: [EXT] Re: XQuery/XPath 2.0+ support

Hi

st 1. 12. 2021 v 6:28 odesílatel Garfield Lewis <garfield(dot)lewis(at)lzlabs(dot)com>
napsal:

> Thx, Tom...
>
> But isn't the libxml2 library not sufficient for this purpose? Note that I
> have not tried it yet, I am still just investigating possible solutions.
>

Unfortunately, no, or it is not about Postgres. The development of libxml2
is frozen :-/ and there are only bugfix releases. What I know, there are
only some experimental enhancements, but nobody has finalized it.

https://stackoverflow.com/questions/6586896/does-libxml2-support-xpath-2-0-or-not

XPath 2.0 is much more complex than XPath - it is a new language.

Please, don't send top post mails to this mailing list

https://en.wikipedia.org/wiki/Posting_style#Top-posting

Regards

Pavel

> --
> Regards,
> Garfield A. Lewis
>
> On 2021-11-29, 12:08 PM, "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>
> Garfield Lewis <garfield(dot)lewis(at)lzlabs(dot)com> writes:
> > I am investigating whether there are any plans to have XPath 2.0
> support for Postgres XML natively or are there any available extension
> packages that includes this support?
>
> I don't know of anyone actively working on that. The difficulty is
> that we don't especially want to write/maintain such logic ourselves,
> but there don't seem to be any suitable libraries available that
> (a) can be called from C and (b) have a compatible license.
>
> regards, tom lane
>
>