Re: [PATCH] Re: Adding xpath_exists function

Alvaro Herrera <alvherre@commandprompt.com>

From: Alvaro Herrera <alvherre@commandprompt.com>

To: Mike Fowler <mike@mlfowler.com>

Cc: Bruce Momjian <bruce@momjian.us>, Robert Haas <robertmhaas@gmail.com>, pgsql-hackers <pgsql-hackers@postgresql.org>

Date: 2010-08-06T02:29:10Z

Lists: pgsql-hackers

Excerpts from Mike Fowler's message of mar jun 29 06:37:28 -0400 2010:

> After seeing some other posts in the last couple of days, I realised I 
> hadn't documented the function in the SGML. I have now done so, and 
> added a couple of tests with XML literals. Please find the patch 
> attached. Now time to go correct the xmlexists patch too...

Hmm, is 0 a valid node number in a xmlNodeSet?  If it is, searching for
the zeroth node would make the code call PG_RETURN_BOOL(0), no?

-- 
Álvaro Herrera <alvherre@commandprompt.com>
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