I did a few tests with our instance solr-7.4.0 and field:* vs field:[* TO *] doesn't seem materially different compared to has_field:1. If no one knows why Lucene optimizes one but not another, it's not clear whether it even optimizes one to be sure.
On Wed, Apr 17, 2019 at 4:27 PM Shawn Heisey <apa...@elyograg.org> wrote: > On 4/17/2019 1:21 PM, John Davis wrote: > > If what you describe is the case for range query [* TO *], why would > lucene > > not optimize field:* similar way? > > I don't know. Low level lucene operation is a mystery to me. > > I have seen first-hand that the range query is MUCH faster than the > wildcard query. > > Thanks, > Shawn >
