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The "HttpPostRevsDiff" page has been changed by JensAlfke: http://wiki.apache.org/couchdb/HttpPostRevsDiff?action=diff&rev1=1&rev2=2 Comment: possible_ancestors Both the request and response bodies are JSON objects whose keys are document IDs; but the values are structured differently: * In the ''request'', a value is an array of revision IDs for that document. - * In the ''response'', a value is an object with a {{{"missing":}}} key, whose value is a list of revision IDs for that document (the ones that are not stored in the database.) + * In the ''response'', a value is an object with a {{{"missing":}}} key, whose value is a list of revision IDs for that document (the ones that are not stored in the database) and optionally a {{{"possible_ancestors"}}} key, whose value is an array of revision IDs that ''are'' known that might be ancestors of the missing revisions. '''Disclaimer:''' This information was derived from mailing-list posts and experimentation and has not yet been reviewed by someone familiar with the implementation. --JensAlfke, Dec. 2011
