[jira] Commented: (COUCHDB-188) _bulk_docs fails when deleting and adding a doc with the same id

["Matt Goodall (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/COUCHDB-188?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12666981#action_12666981 ] 

Matt Goodall commented on COUCHDB-188:
--------------------------------------

Hi,

I'm a bit confused why this was closed. Perhaps a description of the
"new behaviour" is available somewhere?

The only mention of anything related to a change in _bulk_docs I've
*noticed* is about not failing everything in the list of updates
(might be nice if that was optional, actually) and the associated
error reporting. However, that doesn't necessarily fix the problem I
described.

Can anyone explain how the planned change fixes things?

Thanks, Matt




> _bulk_docs fails when deleting and adding a doc with the same id
> ----------------------------------------------------------------
>
>                 Key: COUCHDB-188
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-188
>             Project: CouchDB
>          Issue Type: Bug
>          Components: Database Core
>    Affects Versions: 0.9
>         Environment: CouchDB revision 730414.
>            Reporter: Matt Goodall
>             Fix For: 0.9
>
>
> CouchDB returns a "412 Precondition Failed" when the list of changes sent to _bulk_docs deletes a document and later creates a document with the same id as the deleted document:
>     {"docs": [
>         {"_id": "docid", "_rev": "<rev>", "_deleted": true},
>         {"_id": "docid"}
>         ]}
> Once fixed, the response JSON document  will return the same docid twice in the list but it's presumably ordered consistently with the request data so any client should be able to understand the response.
> Demonstrating the problem using curl is easy enough:
> $ curl -X PUT http://localhost:5984/test
> {"ok":true}
> $ curl -X PUT -d "{}" http://localhost:5984/test/docid
> {"ok":true,"id":"docid","rev":"4140747751"}
> $ curl -X POST -d '{"docs": [{"_id": "docid", "_rev": "4140747751", "_deleted": true}, {"_id": "docid"}]}' http://localhost:5984/test/_bulk_docs
> {"error":"conflict","reason":"Document update conflict."}
> Note: this is likely related to COUCHDB-172.

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