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From dar...@ontrenet.com
Subject Re: seemingly impossible query
Date Thu, 20 May 2010 16:20:48 GMT
Ok. I think I understand. What's impossible about this?

If you have a single field name called <id> that is multivalued
then you can retrieved the documents with something like:

id:1 OR id:2 OR id:56 ... id:100

then add limit 100.

There's probably a more succinct way to do this, but I'll leave that to
the experts.

If you also only want the documents within a certain time, then you also
create a <time> field and use a conjunction (id:0 ...) AND time:NOW-1H
or something similar to this. Check the query syntax wiki for specifics.

Darren


> Hey everyone,
>
> I've recently been given a requirement that is giving me some trouble. I
> need to retrieve up to 100 documents, but I can't see a way to do it
> without making 100 different queries.
>
> My schema has a multi-valued field like 'listOfIds'. Each document has
> between 0 and N of these ids associated to them.
>
> My input is up to 100 of these ids at random, and I need to retrieve the
> most recent document for each id (N Ids as input, N docs returned). I'm
> currently planning on doing a single query for each id, requesting 1 row,
> and caching the result. This could work OK since some of these ids should
> repeat quite often. Of course I would prefer to find a way to do this in
> Solr, but I'm not sure it's capable.
>
> Any ideas?
>
> Thanks,
> -Kallin Nagelberg
>


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