: One potential issue to watch out for...
: DocSet("*:* -id:foo") is not the same as not(DocSet(id:foo))
: That's normally fine, depending on how the set is used.
can you elaborate on that yonik? ... are you refering just to deleted docs
or is there something else i'm missing?
:
: > negative filter queries
: > -----------------------
: >
: > Key: SOLR-80
: > URL: http://issues.apache.org/jira/browse/SOLR-80
: > Project: Solr
: > Issue Type: New Feature
: > Components: search
: > Reporter: Yonik Seeley
: >
: > There is a need for negative filter queries to avoid long filter generation
times and large caching requirements.
: > Currently, if someone wants to filter out a small number of documents, they
must specify the complete set of documents to express those negative conditions
against.
: > q=foo&fq=id:[* TO *] -id:101
: > In this example, to filter out a single document, the complete set of
documents (minus one) is generated, and a large bitset is cached. You could
also add the restriction to the main query, but that doesn't work with the
dismax handler which doesn't have a facility for this.
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-Hoss
