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https://issues.apache.org/jira/browse/COUCHDB-687?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Juuso Väänänen updated COUCHDB-687:
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Attachment: couchdb-md5-in-attachment-COUCHDB-687.patch
Second try storing md5 calculated from attachement when attachement added to
file. Replication uses provided identity-md5 if such exists. Compressed
attachements are not extracted to find out what actual md5 would be. If md5 is
not known for some reason text value "unknown" is used on json.
Upgrade path from older disk formats is not most likely complete and this patch
is at the moment only request for comments. (Anyway granted for inclusion)
> Add md5 hash to _attachments properties for documents
> -----------------------------------------------------
>
> Key: COUCHDB-687
> URL: https://issues.apache.org/jira/browse/COUCHDB-687
> Project: CouchDB
> Issue Type: Improvement
> Environment: CouchDB
> Reporter: mikeal
> Assignee: Filipe Manana
> Attachments: couchdb-md5-in-attachment-COUCHDB-687.patch, md5.patch
>
>
> The current attachment information looks like this:
> GET /dbname/docid
> "_attachments": {
> "jquery-1.4.1.min.js": {
> "content_type": "text/javascript"
> "revpos": 138
> "length": 70844
> "stub": true
> }
> }
> If a client wanted to sync local files as attachments with a document it
> would not currently be able to do so without keeping a local store of the
> revpos. If this information included an md5 hash of the attachment clients
> could compare it against a hash of the local file to see if they match.
> -Mikeal
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