As so far couchdb databases are within CouchDB App directory, when upgrading to a new version of CouchDBX app, there is no defined way to upgrade.
Processs consist to :
copy /Applications/CouchDBX-0.9.0-R13B.app/Contents/Resources/couchdbx-core/couchdb/var/lib/couchdb to the new installation : /Applications/CouchDBX-0.9.1-R13B-pl2.app/Contents/Resources/couchdbx-core/couchdb/var/lib/couchdb
or to copy databases outside CouchDBX app and use symlink :
As so far couchdb databases are within CouchDB App directory, when upgrading to a new version of CouchDBX app, there is no defined way to upgrade.
Processs consist to :
mv /Applications/CouchDBX-0.9.1-R13B-pl2.app/Contents/Resources/couchdbx-core/couchdb/var/lib/couchdb /path/to/couchdb ln -s /path/to/couchdb/ /Applications/CouchDBX-0.9.1-R13B-pl2.app/Contents/Resources/couchdbx-core/couchdb/var/lib/couchdb