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Date: Wed, 3 Aug 2011 13:38:31 +0200
From: Gabor Ratky <rgabo@rgabostyle.com>
To: user@couchdb.apache.org
Message-ID: <309637F705ED4BCFA4F33F6C2EA577F2@rgabostyle.com>
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Subject: Re: get size of a document (with attachments) within a view
 function ...
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 Hans, =20

the sizes (length) of the attachments are available under doc.=5Fattachme=
nts. So the size of the first attachment is doc.=5Fattachments=5B'name=5F=
of=5Fattachment.txt'=5D.length. You can iterate over this object easily a=
nd sum up the sizes. You can also:

map: '''
emit(doc.=5Fid, JSON.stringify(doc).length)
for attachment=5Fname in attachments
emit(doc.=5Fid, attachments=5Battachment=5Fname=5D.length)
'''

reduce: '=5Fsum'

and let CouchDB reduce to the sum of sizes.

Gabor =20


On Wednesday, August 3, 2011 at 1:34 PM, Hans-Dieter B=C3=B6hlau wrote:

> Hi *,
> I'd like to calculate the size of a number of documents within a view .=
.. to
> estimate the download-volume for the replication to client side.
> My idea is to calculate the size of each document within the map functi=
on
> and to sum up the values within the reduce step.
> =20
> How can I calculate the size of a document (including attachments=21) w=
ithin
> the map function=3F
> =20
> Thank you for help,
> Hans


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