Thanks. This is still confusing to me though.
Maybe a simplier question ...
Is there any way to pass 2 distinct doc() expressions to cts:search and
have it treat them as searchable and return a combined result such that
things like cts:remainder work.
E.g. the equivilent of
cts:search( doc("a.xml") | doc("b.xml") , "term" )
I dont see how I could use your last suggest
cts:search(fn:doc(), cts:and-query((
cts:collection-query("my-collection"), cts:word-query("dog") )))
as the argument to cts:search() is a single document ... but I suspect
I'm misreading that.
Also I dont mind re-inserting the documents at insert time into
collections ... I could also insert them into a sub directory so that
presumably
cts:search( cts:directory("/Root/Sub/") , "term" )
would search all docs in that directory as a single searchable result
From: [email protected]
[mailto:[email protected]] On Behalf Of Mark
Helmstetter
Sent: Saturday, November 21, 2009 1:09 PM
To: General Mark Logic Developer Discussion
Subject: [MarkLogic Dev General] RE: Creating Collections
You don't really explicitly create a collections, generally you will
either specify the collection(s) for a document when you insert it or
you can update the document using xdmp:document-add-collections().
Setting them at insert time is more ideal, that way you don't incur the
extra update to add the collections. You can also assign 1 or more
default collections to a particular user or role via the Admin interface
(Security->Users and Security->Roles).
How you add them at insert time will depend on how you're actually
inserting your documents. If you're using xdmp:document-insert() or
xdmp:document-load() both of those functions have their own way of
specifying collections when you insert the docs (see the API
documentation for details).
As far as using the collections that you create at query time, there are
a number of options. One option is to use "cts:search( collection("my
collection") ... )" as you describe. This will be a searchable
expression, and will search all documents within that collection. You
can also use cts:collection-query() which can be combined with your
other query criteria using cts:and-query(). For example:
cts:search(fn:doc(), cts:and-query((
cts:collection-query("my-collection"), cts:word-query("dog") )))
From: [email protected]
[mailto:[email protected]] On Behalf Of Lee, David
Sent: Saturday, November 21, 2009 12:39 PM
To: [email protected]
Subject: [MarkLogic Dev General] Creating Collections
I'm having fun now trying to search 2 documents at once with different
structures (different root elements among other things)
I know I can put them into a directory and search them via
cts:search( cts:directory("/dir/") , ...)
but I was trying to see what else I could do, so I tried this
cts:search( doc("doc1" )/foo/bar | doc("doc2")/spam ,
...)
"of course" that didnt work. (an error about "Not searchable
expression").
So what I've done is search twice then combine the results but it causes
all sorts of unnecessary complexity,
let $res := cts:search( ... ) | cts:search( ... )
for example the ordering now isn't by score anymore, so I have to add a
for/order-by to re-order it.
Then the cts:remainder function doesnt work too good
cts:remainder( $res[1] )
returns the remainder of the first search only. So then I have to do
some more fancy stuff to add 2 remainders ...
I bet you can see how this is going .. :)
So I'm looking around for a better way and ran into the collection
concept. Is that how to solve this ? Create a collection ...
then is the collection searchable ?
cts:search( collection("my collection") ... )
then the results would be combined right ?
SO ho DO I create a collection ? The only way so far I've found is
xdmp:documents-add-to-collection()
Is that the only/correct way to create collections ? Is there something
on the admin panel that can do it ?
Any pointers to docs that describe collections would be appreciated.
All I could find is some very terse references to them but not how to
actually create and use them.
Thanks for any suggestions !
----------------------------------------
David A. Lee
Senior Principal Software Engineer
Epocrates, Inc.
[email protected]
812-482-5224
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