Hello again,

[...]
> So no issue with wildcard limits :-)
> Then maybe there are some troubles with 'and not' at the beginning of
> a query.. I'll need to investigate.
> 
> Meanwhile, -author:$->~ seems to give the good results:
> 
> http://ddd.uab.cat/search?p=-author%3A%24-%3E~&sc=1 => 5472 records

Great!  Thanks!  It works also for marc tags (ex., all records without
rights tags, -540__a:0->z, or -540%a:0->z).  That's perfect!
 
> Since authorcount:0 yields 6 results less, this is how you can check
> them:
> http://ddd.uab.cat/search?p=-author%3A%24-%3E~+-authorcount%3A0+&sc=0

A few cyrilic, non-alphanumeric and an empty 100 tag (this one I've
fixed myself).  Librarians will be so pleased!

Thanks so much!

Ferran

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