Re: [basex-talk] Seeing this error a lot lately (since 8.5-snapshots)

Hi Marc,

I wonder if this is in connection to the doc() bug I stumbled upon yesterday. It was a tricky one, but Christian (as always) immediately fixed it:https://github.com/BaseXdb/basex/commit/bd57211617cd831604850a8e8710bf1759c1...

I am not sure whether this has the same cause, but you might want to try the latest snapshot.

Cheers Dirk

On 07/06/2016 10:21 PM, Marc van Grootel wrote:

Hi,

With the 8.5 branch i've started seeing the following error a lot lately.

[XUDY0016] Documents in path 'docbook/chapters/mu.xml' can only be

replaced once.

This is the example function I used to trigger this.

declare %updating function local:import()
{
  for $file in file:list($srcdir, true(), '*.xml')
  let $path := $srcdir || $file
  where not(file:is-dir($path))
  return db:replace('docbook', $file, doc(trace($path,'X: ')))
};

(lifted from the BaseX documentation example on file:list)

Note that the path exists and contains several XML files. It happened a lot too on a work project so I've seen this in several situations now. On the latter project it went away after going back to a 8.4 build. Sorry for not reporting sooner as I was under severe time pressure at the time.

I tried switching MIXUPDATES on and off. That doesn't make a difference.

I have two XML files in this $srcdir and when I put a trace around $path I see that both of them are listed before it stops with an error message that includes the path of the first one.

X: "/Users/marcvangrootel/projects/xml/book/chapters/mu.xml"
X: "/Users/marcvangrootel/projects/xml/book/chapters/test.xml"
Stopped at /Users/marcvangrootel/projects/xml/c4/test/demo.xq, 30/20:
[XUDY0016] Documents in path 'docbook/chapters/mu.xml' can only be

replaced once.

Odd!

--Marc