Hi,
ML support suggested we do this to generate a unique ID for our documents :
declare function choose-uri() as xs:string
{
let $uri := fn:concat("/document-", xdmp:random(), ".xml")
return if (fn:exists(fn:doc($uri))) then choose-uri() else $uri
};
My question is, will the call to fn:exists(fn:doc($uri)) be fast,
considering that we now have 8 million documents ?
The fn:exists(fn:doc($uri)) call is needed to obtain a read lock, which
will be upgraded to a write lock when xdmp:document-insert is called.
Regards,
Danny
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