Github user kxepal commented on the pull request:
https://github.com/apache/couchdb-couch-mrview/pull/14#issuecomment-70530606
Oh, that is my fault.
Originally this metric was defined in couchdb-couch and here is the commit
the moved it to mrview:
https://github.com/apache/couchdb-couch/commit/c6c3c1eec396574b792b4e86b96f48816a0fc0ee
and here is how it was used:
https://github.com/apache/couchdb-couch/commit/40c5c85d3bf60c73f28389394058ec1f27207335
So actually, there is need to rename map_docs to map_doc in order of great
justice.
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