Thank you Shawn. This does work..... To help me understand better, why do we need the *:* ? Shouldn't it be implicit ? Shouldn't fq=(price:4+OR+(-price:[* TO *])) //does not work mean the same as fq=(price:4+OR+(*:* -price:[* TO *])) //works
Why does Solr need the *:* there ? On Fri, Jun 7, 2013 at 12:07 AM, Shawn Heisey <s...@elyograg.org> wrote: > On 6/6/2013 12:28 PM, Rahul R wrote: > >> I have recently enabled facet.missing=true in solrconfig.xml which gives >> null facet values also. As I understand it, the syntax to do a faceted >> search on a null value is something like this: >> &fq=-price:[* TO *] >> So when I want to search on a particular value (for example : 4) OR null >> value, I would expect the syntax to be something like this: >> &fq=(price:4+OR+(-price:[* TO *])) >> But this does not work. After searching around for more, read somewhere >> that the right way to achieve this would be: >> fq=-(-price:4+AND+price:[*+TO+***]) >> Now this does work but seems like a very roundabout way. Is there a better >> way to achieve this ? >> > > Pure negative queries don't work -- you have to have results in the query > before you can subtract. For some top-level queries, Solr is able to > detect this situation and fix it internally, but on inner queries you must > explicitly state your intentions. It is best if you always use '*:* > -query' syntax, just to be safe. > > fq=(price:4+OR+(*:* -price:[* TO *])) > > Thanks, > Shawn > >
