lucene-solr-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Chris Hostetter <hossman_luc...@fucit.org>
Subject Re: Query Parser OR AND and NOT
Date Mon, 15 Apr 2013 16:39:17 GMT
: Hallo,
: I do not really understand the query language of the SOLR-Queryparser.

http://www.lucidimagination.com/blog/2011/12/28/why-not-and-or-and-not/

The one comment i would add regarding your specific examples...

: (!city:H*) OR zip:30*    numFound: 2896  

...you can't have a boolean query -- the parens -- containing purely 
negative clauses like.  that boolean query doesn't match anything, just 
just explcudes things.  If the *entire* query is negative, then solr helps 
you out by implicitly making the negation relative to a query that matches 
all documents, but if you are creating boolean sub-queries with parens, 
then you need something "positive" in that sub-query to match some 
criteria X and then your negations provide exclusions from that criteria.


-Hoss

Mime
View raw message