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That could also very well be about CouchDB which implemented indexes/views as MapReduce functions.
by rubiquity 2y ago
That could also very well be about CouchDB which implemented indexes/views as MapReduce functions.
- senderista 2y agoBack in the day we had a CouchDB MapReduce view (on Cloudant) which took a full month to rebuild (while an angry customer was waiting). The I/O inefficiency was absolutely off the charts.