[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=12689742#action_12689742 ] 

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

Testing against trunk shows that the new behaviour still has the same error. I think the following test shows the problem.

couchTests.bulkdocs_delete_create = function(debug) {

    var db = new CouchDB("test_suite_db");
    db.deleteDb();
    db.createDb();

    var results = db.bulkSave([{_id: 'foo'}]);
    var orig_rev = results[0].rev;
    var results = db.bulkSave([{_id: 'foo', _rev: orig_rev, _deleted: true}, {_id: 'foo'}]);
    T(!results[0].error);
    T(results[1].rev != orig_rev);
    T(!results[1].error);
    T(results[1].rev != orig_rev);
  };


> _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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