include attachment md5 sums in _attachments
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Key: COUCHDB-1170
URL: https://issues.apache.org/jira/browse/COUCHDB-1170
Project: CouchDB
Issue Type: Bug
Components: HTTP Interface
Affects Versions: 1.0.2
Reporter: Randall Leeds
Priority: Minor
Fix For: 1.1
Attachments: 0001-include-md5sum-field-in-_attachments-entries.patch
Crucial to functioning replication is deterministic revisions. Attachment md5
sums are used in CouchDB's revision generation (see couch_db:new_revid/1).
Alternative CouchDB implementations may find it impossible or impractical to
support binary attachments yet still wish to track changes and replicate
efficiently with Apache CouchDB. To this end, such implementations need an
efficient way to fetch all metadata necessary for calculating compatible
revisions in the event of locally executed future updates.
As a bonus, exposing this metadata is particularly beneficial for filesystem
sync tools (such as couchapp implementations), e.g. through eliminating the
need for redundantly storing checksums as user data on synchronized documents.
To this end I propose the following 5-line patch which applies cleanly to
trunk, 1.1.x and 1.0.x.
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