> Does anybody know of an efficient way to find out the most 
> recent update time of any document in a database?  I tried:

I think you'd have to maintain your own "last-modified.xml" document and
update it when you do another relevant update.  It might be possible to
do this with a trigger.  I don't personally use them so I don't know if
there'd be quirks.

> (  for $t in xdmp:directory-properties("/", 
> "infinity")//prop:last-modified
>     order by $t descending
>       return <node uri="{base-uri ($t)}">{$t}</node>
> ) [1]
> 
> but it seems to have to process every properties document.

Correct.

-Matt
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