The server applies schemas dynamically, looking at whatever happens to be
available. So yes it's possible. However that can lead to a problem: if I have
a node 'run/elapsed', I might have two different schemas that contain an
element 'run'. The server will use the first one it finds.
Because of this I strongly recommend using namespaces and schemas together. A
schema that targets {mynamespace}run is much less likely to conflict with some
other schema. You can also disambiguate which schema you want using an 'import
schema...' prolog expression.
Let's see... there used to be a quick schema tutorial on the developer site.
Here it is: http://developer.marklogic.com/learn/2007-04-schema
-- Mike
On 24 Jun 2011, at 07:28 , Lee, David wrote:
> Suppose I have a bunch of documents with no namespace and no schemas.
> I would like to apply a schema to these documents so that
>
> 1) I can avoid lots of casting in my xquery such as
> fn:avg(($runs[@status eq 'true']/@elapsed)
> instead of
> fn:avg( xs:dayTimeDuration($runs[@status eq 'true']/@elapsed
> ))
>
> 2) So that indexes are built knowing about the element and attribute types so
> that things like
> fn:max( xdmp:directory("/logs/" )//run/@elapsed )
> can go through an index instead and be sorted correctly (by dateTimeDuration
> instead of by string
>
> Is this possible ?
> If so how ?
>
> Thanks for suggestions and pointers to RTFM's
>
>
>
>
> ----------------------------------------
> David A. Lee
> Senior Principal Software Engineer
> Epocrates, Inc.
> [email protected]
> 812-482-5224
>
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