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The "FilterQueryGuidance" page has been changed by YonikSeeley. The comment on this change is: not just bitvectors. http://wiki.apache.org/solr/FilterQueryGuidance?action=diff&rev1=8&rev2=9 -------------------------------------------------- == Stray bits == Memory consumption per filter field value is not a great concern here - as the `filterCache` typically (perhaps always) stores only bit vectors, + as the `filterCache` stores relatively compact representations such as bit vectors + (or smaller representations, depending on the set cardinality) with each bit representing a boolean to signal whether or not the document in question is a member of the set matching the filter specification. Document reference is implicit by each bit's position in the vector;
