Previously, if users had invalid ddocs in the cluster, for instance something like _design/, the scanner would crash when transforming them into #doc{} records. That happened because the couch_doc function would automatically revalidate them: check max doc length ID, attachments format, revision format, doc ID format, etc. Which is altogether silly, since they are already saved in our cluster.
So, to avoid wasting resources revalidating existing documents, and crashing the scanner process, use a much simpler function to transform the ddocs: make a new #doc{} record with the ID and body by throwing away all the "special" doc fields we don't care about (_rev, _conflicts, ...).
Previously, if users had invalid ddocs in the cluster, for instance something like
_design/, the scanner would crash when transforming them into#doc{}records. That happened because thecouch_docfunction would automatically revalidate them: check max doc length ID, attachments format, revision format, doc ID format, etc. Which is altogether silly, since they are already saved in our cluster.So, to avoid wasting resources revalidating existing documents, and crashing the scanner process, use a much simpler function to transform the ddocs: make a new
#doc{}record with the ID and body by throwing away all the "special" doc fields we don't care about (_rev,_conflicts, ...).