elasticsearch/elasticsearch — pull request #9056 by jpountz (2014-12-24 10:47:58+00:00)
Title: Core: Remove terms filter cache.

This is our only cache which is not 'exact' and might allow for stalled results.
Additionally, a similar cache that we have and needs to perform lookups in other
indices in order to run queries is the script index, and for this index we rely
on the filesystem cache, so we should probably do the same with terms filters
lookups.