Hi Ahmet, > a) I think wildcard search is by default "case sensitive"? > Is there a > way to make case insensitive? >>Wildcard searches are not analyzed. To case insensitive search you can lowercase query terms >>at client side. (with using lowercasefilter at index time) e.g. Mail* => mail* > > I discovered that the normal query type doesn't work with wildcards > and so I'm using the "Filter Query" to query these. >>I don't understand this. Wildcard search works with q parameter if you are asking that. >>&q=mail*
For the 2 points above, my bad. I'm already using the "lowercasefilter" but I was not lowering the query with wildcards (the others are lowered by the analyser). So it's working fine now! On my tests yesterday probably I was testing &q=Mail* and &fq=mail* (and didn't notice the difference) and read somewhere that it wasn't possible (probably on older solr version) so I get the wrong conclusion that it wasn't working. >>But it is unusual to use both leading and trailing * operator. Why are you doing this? Yes I know, but I have a few queries that need this. I'll try the "ReversedWildcardFilterFactory". >>By default it is not supported. With SOLR-1604 is it possible. Ok then. I guess "SOLR-1604" is the answer for most of my problems. I'm going to give it a try and then I'll share some feedback. Thanks for your help and sorry for my newbie confusions. :) Frederico -----Original Message----- From: Ahmet Arslan [mailto:iori...@yahoo.com] Sent: sexta-feira, 30 de Julho de 2010 12:09 To: solr-user@lucene.apache.org Subject: RE: wildcard and proximity searches > a) I think wildcard search is by default "case sensitive"? > Is there a > way to make case insensitive? Wildcard searches are not analyzed. To case insensitive search you can lowercase query terms at client side. (with using lowercasefilter at index time) e.g. Mail* => mail* > I discovered that the normal query type doesn't work with wildcards > and so I'm using the "Filter Query" to query these. I don't understand this. Wildcard search works with q parameter if you are asking that. &q=mail* > field my > queries are much slower (I have some queries like *word* or > *word1* or > *word2* that take about one minute to perform) > Is there a way to optimize these queries (without removing > the wildcards > :))? It is normal for leading wildcard search to be slow. Using ReversedWildcardFilterFactory at index time can speedup it. But it is unusual to use both leading and trailing * operator. Why are you doing this? > c)Is there a way to do phrase queries with wildcards? Like > "This solr* > mail*"? Because the tests I made, when using quotes I think > the wildcards are ignored. By default it is not supported. With SOLR-1604 is it possible. > d)How exactly works the pf (phrase fields) and ps (phrase > slop) > parameters and what's the difference for the proximity > searches (ex: > "word word2"~20)? These parameters are specific to dismax query parser. http://wiki.apache.org/solr/DisMaxQParserPlugin
