This JIRA also throws some light. There is a discussion of encoding norm during indexing. The contributor eventually comments that "norms" encoded by different similarity are compatible to each other.
On Thu, Nov 30, 2017 at 5:12 PM, Nawab Zada Asad Iqbal <khi...@gmail.com> wrote: > Hi Walter, > > I read the following line in reference docs, what does it mean by as long > as the global similarity allows it: > > " > > A field type may optionally specify a <similarity/> that will be used > when scoring documents that refer to fields with this type, as long as the > "global" similarity for the collection allows it. > " > > On Wed, Nov 22, 2017 at 9:11 AM, Nawab Zada Asad Iqbal <khi...@gmail.com> > wrote: > >> Thanks Walter >> >> On Mon, Nov 20, 2017 at 4:59 PM Walter Underwood <wun...@wunderwood.org> >> wrote: >> >>> Similarity is query time. >>> >>> wunder >>> Walter Underwood >>> wun...@wunderwood.org >>> http://observer.wunderwood.org/ (my blog) >>> >>> >>> > On Nov 20, 2017, at 4:57 PM, Nawab Zada Asad Iqbal <khi...@gmail.com> >>> wrote: >>> > >>> > Hi, >>> > >>> > I want to switch to Classic similarity instead of BM25 (default in >>> solr7). >>> > Do I need to reindex all cores after this? Or is it only a query time >>> > setting? >>> > >>> > >>> > Thanks >>> > Nawab >>> >>> >