Um, good or bad for what? It depends. But it's how Solr works either way.
On 1/5/2011 5:10 PM, Dennis Gearon wrote:
Is that good or bad? Dennis Gearon ----- Original Message ---- From: Jonathan Rochkind<rochk...@jhu.edu> To: "solr-user@lucene.apache.org"<solr-user@lucene.apache.org> Cc: Em<mailformailingli...@yahoo.de> Sent: Wed, January 5, 2011 1:53:23 PM Subject: Re: (FQ) Filter Query Caching Differences with OR and AND? Each 'fq' clause is it's own cache key. 1. fq=foo:bar OR foo:baz => one entry in filter cache 2. fq=foo:bar&fq=foo:baz => two entries in filter cache, will not use cached entry from #1 3. fq=foo:bar => One entry, will use cached entry from #2 4. fq=foo:bar => One entry, will use cached entry from #2. So if you do queries in succession using each of those four fq's in order, you will wind up with 3 entries in the cache. Note that "fq=foo:bar OR foo:baz" is not semantically identical to "fq=foo&fq=bar". Rather that latter is semantically identical to "fq=foo:bar AND foo:baz". But "fq=foo&fq=bar" will be two cache entries, and "fq=foo:bar AND foo:baz" will be one cache entry, and the two won't share any cache entries. On 1/5/2011 3:17 PM, Em wrote:Hi, while reading through some information on the list and in the wiki, i found out that something is missing: When I specify a filter queries like this fq=foo:bar OR foo:baz or fq=foo:bar&fq=foo:baz or fq=foo:bar or fq=foo:baz How many filter query entries will be cached? Two, since there are two filters (foo:bar, foo:baz) or 3, since there are three different combinations (foo:bar OR foo:baz, foo:bar, foo:baz)? Thank you!
