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https://issues.apache.org/jira/browse/COUCHDB-196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12661974#action_12661974
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Bob Dionne commented on COUCHDB-196:
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attached is a simpler test case that exhibits the bug. I stepped into this a
bit in a debugger. The AdapterFun (line#-288 in couch_httpd_db) is called twice
with oth records "Z" and "a", which the debug statements already confirm. Not
too up on the code yet so I'm not sure if it's in
couch_httpd_view:make_view_fold_fun or couch_db:enum_docs. Here's what the
state looks like the first time through:
http://gist.github.com/44721
> Bug in _all_docs: extra incorrect row returned when ?key= is specified
> ----------------------------------------------------------------------
>
> Key: COUCHDB-196
> URL: https://issues.apache.org/jira/browse/COUCHDB-196
> Project: CouchDB
> Issue Type: Bug
> Components: HTTP Interface
> Reporter: Jason Davies
> Attachments: collation_ids.diff, collation_test.2.diff,
> collation_test.diff
>
>
> I first noticed this when attempting to reverse the order of docs displayed
> in Futon, when listing the design docs. When the order is reversed,
> non-design docs are displayed.
> After digging deeper I discovered that querying _all_docs with key="Z" can
> potentially return two rows, with keys "Z" and "a".
> I will attach a test case to reproduce this. My locale is set to
> en_GB.UTF-8, which could be related to this problem.
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