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https://issues.apache.org/jira/browse/COUCHDB-3239?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15725967#comment-15725967
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Paul Joseph Davis commented on COUCHDB-3239:
--------------------------------------------
Hah, well that'd do it.
> incorrect ordering of results when using open_revs and latest=true
> ------------------------------------------------------------------
>
> Key: COUCHDB-3239
> URL: https://issues.apache.org/jira/browse/COUCHDB-3239
> Project: CouchDB
> Issue Type: Bug
> Components: Database Core
> Affects Versions: 2.0.0
> Reporter: Will Holley
> Attachments: docs.json
>
>
> When fetching open_revs with latest=true for a conflicted document, the order
> of results is incorrect. For example, if I create a document with the rev
> tree:
> {code}
> 4-d1
> /
> 3-c1
> /
> 2-b1
> /
> 1-a
> \
> 2-b2
> \
> 3-c2
> {code}
> and ask for {{open_revs=["2-b1","2-b2"]&latest=true}}, the response will
> return {{3-c2}} followed by {{4-d1}} - the reverse of what I'd expect.
> Below is a test/reproduction executed against Couch 1.6.1 and 2.0.
> 1.6.1:
> {code}
> $ export COUCH_HOST="http://127.0.0.1:5984";
> $ curl -XPUT "$COUCH_HOST/open_revs_test"
> {"ok":true}
> $ curl "$COUCH_HOST/open_revs_test/_bulk_docs" -H
> "Content-Type:application/json" -XPOST -d @docs.json
> []
> # GET open_revs=["2-b1","2-b2"]
> $ curl -H "Accept:application/json"
> "$COUCH_HOST/open_revs_test/mydoc?open_revs=%5B%222-b1%22%2C%222-b2%22%5D"
> [{"ok":{"_id":"mydoc","_rev":"2-b1","value":"x-winning"}},{"ok":{"_id":"mydoc","_rev":"2-b2","value":"x-losing"}}]
> # GET open_revs=["2-b1","2-b2"]&latest=true
> $ curl -H "Accept:application/json"
> "$COUCH_HOST/open_revs_test/mydoc?open_revs=%5B%222-b1%22%2C%222-b2%22%5D&latest=true"
> [{"ok":{"_id":"mydoc","_rev":"4-d1","value":"z-winning"}},{"ok":{"_id":"mydoc","_rev":"3-c2","value":"y-losing"}}]
> {code}
> 2.0:
> {code}
> $ export COUCH_HOST="http://127.0.0.1:15984";
> $ curl -XPUT "$COUCH_HOST/open_revs_test"
> {"ok":true}
> $ curl "$COUCH_HOST/open_revs_test/_bulk_docs" -H
> "Content-Type:application/json" -XPOST -d @docs.json
> []
> # GET open_revs=["2-b1","2-b2"]
> $ curl -H "Accept:application/json"
> "$COUCH_HOST/open_revs_test/mydoc?open_revs=%5B%222-b1%22%2C%222-b2%22%5D"
> [{"ok":{"_id":"mydoc","_rev":"2-b1","value":"x-winning"}},{"ok":{"_id":"mydoc","_rev":"2-b2","value":"x-losing"}}]
> # GET open_revs=["2-b1","2-b2"]&latest=true
> $ curl -H "Accept:application/json"
> "$COUCH_HOST/open_revs_test/mydoc?open_revs=%5B%222-b1%22%2C%222-b2%22%5D&latest=true"
> [{"ok":{"_id":"mydoc","_rev":"3-c2","value":"y-losing"}},{"ok":{"_id":"mydoc","_rev":"4-d1","value":"z-winning"}}]
> {code}
> Note the reversed order of the results in 2.0 when {{latest=true}} is
> specified.
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