> > In general, the type of feature you are interested in is > typcially caleld > a "PrefixQuery" you can acomplish it with the SolrQueryParser > using "a*" > > http://wiki.apache.org/solr/SolrQuerySyntax > > : example show all docs starting with an "a" or "A", I would > just add an > : extra field only containing the first letter. This is > *much* faster in > > the EdgeNGramTokenizerFactory should actaully make this > trivial for you ... you can copyField the value into an > "initial" field > and let the Tokenizer do all the work of indexing only teh first > character.
That is indeed much easier....never heard of the EdgeNGramTokenizerFactory but seems to be doing exactly the thing you describe, Thx, Ard > > : lucene, and for many documents you don't risk the too many boolean > : clauses (though you can set it very high, at the cost of memory) > > this isn't actually a problem in Solr .. the SolrQueryParser > doesn't use > regualr PrefixQueries, it rewritesthem into PrefixFilter's > which don't hit > the boolean clauses limit. > > > > -Hoss > >
