Rewrite the view engine
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Key: COUCHDB-1270
URL: https://issues.apache.org/jira/browse/COUCHDB-1270
Project: CouchDB
Issue Type: Improvement
Components: JavaScript View Server
Reporter: Paul Joseph Davis
The view engine has been creaky and cluttered. As shown by GeoCouch, adding new
indexers basically involves copying the entire view engine and hacking the
parts that are different. In short, the opposite of good engineering.
Over the last couple weeks I've refactored the view engine and reimplemented
the map/reduce view engine. These changes are 100% internal and no external
behavior has changed. Performance is just a tiny bit better than trunk. I did
do some playing trying to improve view update times and there are some dances
we could do, but for the time being I wanted to keep the same general
architecture for updates so that the changes are minimal.
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