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Date: Tue, 15 Jun 2010 10:36:06 +0300
Message-ID: <AANLkTil2H-v80lVKowlKAWF585Aagg0lIz6DWDLg2i-H@mail.gmail.com>
Subject: Re: Can I get just the keys from a view? [SEC=UNCLASSIFIED]
From: afters <afters.mail@gmail.com>
To: user@couchdb.apache.org
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I'm fairly new to couch myself, but here goes:

You could use a list function that would crop the values and leave the keys.

Also, you could write a reduce function that does the same - just query the
view with 'group=true' so each view-doc gets its own reduce.


a.

On 15 June 2010 05:26, Lowry, Matthew <Matthew.Lowry@dsto.defence.gov.au>
wrote:

> Hi folks. A Couch newbie here with a question regarding the view API.
>
> Is there any way that I can query a view and get just the key for each
> row, and omit the value?
>
> The reason I ask is I'm working with a view that generates a massive
> amount of data - each document in the database generates many hundreds
> of rows in the view. Each row has a large value object. But all I want
> to do is get the keys. So it's wasting a massive amount of time and
> resources, both client and server side, to have to pull both the key and
> value object for every row in the view when all I want to see is the
> key.
>
> So is there actually a mechanism in the view API to pull just the key
> from each row of a view? And if not, why not? That would be curiously
> asymmetrical with the document API, which allows me to get the IDs of
> all the documents without requesting the documents themselves.
>
> Cheers.
>
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