It looks to me like doc-available($uri) is equivalent to xdmp:exists(doc($uri))
now. Either expression results in a simple list-cache lookup, with no tree
fetches and no reliable difference in elapsed-time.
If you use a uri lexicon, probably something like exists(cts:uris($uri,
'limit=1')) will be faster than cts:uri-match($uri). But I think there might be
cases where doc-available is cached and the lexicon lookup is not, so the
lexicon lookup may not always be faster than doc-available.
-- Mike
On 1 Mar 2012, at 13:25 , Danny Sokolsky wrote:
> xdmp:exists(fn:doc("/my/uri.xml"))
>
> will be fast.
>
> The uri lexicon functions are also a good choice.
>
> -Danny
>
>
>
> From: general-boun...@developer.marklogic.com
> [mailto:general-boun...@developer.marklogic.com] On Behalf OfDavid Swearingen
> Sent: Thursday, March 01, 2012 1:15 PM
> To: general@developer.marklogic.com
> Subject: [MarkLogic Dev General] Is fn:doc-available() high performance, or
> should we use something else like cts:uri-match()?
>
> We have a system with a million or so records. When attempting to discern if
> a doc with a given uri is in the system, what's the fastest method? Thanks.
>
>
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