Add include_seqs=true option to _all_dbs to allow efficient bootstrapping of
external indexes.
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Key: COUCHDB-494
URL: https://issues.apache.org/jira/browse/COUCHDB-494
Project: CouchDB
Issue Type: New Feature
Components: Database Core
Reporter: Robert Newson
External indexers need an efficient way to detect changes across all databases
when they boot up. The _all_dbs endpoint only lists the names. We propose
adding include_seqs=true which would return this style output instead;
[ {"name":"db1","update_seq",5000}, {"name":"db2","update_seq",2500} ]
this would allow an external indexer to skip any database that has not changed.
As external indexers often store their configuration changes inside design
documents, it might also be helpful if the update_seq of the latest change to
any design document was also included. This will allow external indexers to
skip even databases with changes as long as those changes are not to design
documents;
[ {"name":"db1","update_seq",5000, "ddoc_update_seq":23},
{"name":"db2","update_seq",2500, "ddoc_update_seq":2500} ]
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