From: | Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Ramesh T <rameshparnanditech(at)gmail(dot)com>, Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com>, "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: xml |
Date: | 2015-03-23 14:42:05 |
Message-ID: | CAFj8pRDPK7Hf3kbm1NqQzfn4XhE+jcWR7eqd1Vy5DfBZhyoetw@mail.gmail.com |
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Lists: | pgsql-general |
2015-03-23 15:09 GMT+01:00 Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>:
> Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> writes:
> > result of xmlagg is not valid xml.
>
> Really? Either that's a bug, or it's declared wrong.
>
I was not accurate. "<tag /><tag />" is not valid xml document - and xpath
function doens't like it.
postgres=# select xpath('//tag/@x','<tag x="x"/><tag />'::xml);
ERROR: could not parse XML document
DETAIL: line 1: Extra content at the end of the document
<tag x="x"/><tag />
^
CONTEXT: SQL function "xpath" statement 1
postgres=# select xpath('//tag/@x','<x><tag x="x"/><tag /></x>'::xml);
xpath
-------
{x}
(1 row)
postgres=# select '<tag x="x"/><tag />'::xml;
xml
---------------------
<tag x="x"/><tag />
(1 row)
Regards
Pavel
>
> regards, tom lane
>
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