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Date: Thu, 16 May 2013 11:03:18 +0000 (UTC)
From: "Robert Newson (JIRA)" <jira@apache.org>
To: dev@couchdb.apache.org
Message-ID: <JIRA.12647019.1368196837570.331447.1368702198199@arcas>
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Subject: [jira] [Commented] (COUCHDB-1791) Initial index of views is highly
 fragmented
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    [ https://issues.apache.org/jira/browse/COUCHDB-1791?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13659435#comment-13659435 ] 

Robert Newson commented on COUCHDB-1791:
----------------------------------------

actually ===, but good spot.
                
> Initial index of views is highly fragmented
> -------------------------------------------
>
>                 Key: COUCHDB-1791
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-1791
>             Project: CouchDB
>          Issue Type: Improvement
>          Components: JavaScript View Server
>            Reporter: James Howe
>
> function(doc) {
>   if (doc.a = 'b') { emit(doc._id, null); }
> }
> This view, running on CouchDB 1.2.1, takes 16 minutes to index from scratch on an inactive database, creating a 2.5GB file.
> After compaction, the file is then only 157MB.
> Can we do something about this waste of disk I/O, such that the initial index is smaller to start with?

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