Hi, I am also wondering how to disable leading wildcards in Solr. Can you please suggest how to disable leading wildcards in Solr? I know in Lucene it is a flag that's set to false by default.
> Do it on the client side. Just don't allow leading asterisks or question marks in your query term. This does not look trivial to me. A search query can be very complicated. How do you suggest to detect trailing wildcards from a complicated Lucene query? Thank you On Fri, Dec 22, 2017 at 6:07 AM Michael Kuhlmann <k...@solr.info> wrote: > Am 22.12.2017 um 11:57 schrieb Selvam Raman: > > 1) how can i disable leading wildcard search > > Do it on the client side. Just don't allow leading asterisks or question > marks in your query term. > > > 2) why leading wildcard search takes so much of time to give the > response. > > > > Because Lucene can't just look in the index for all terms beginning with > something; it needs to look in all terms instead. Basically, indexed > terms are in alphabetical order, but that doesn't help with leading > wildcards. > > There's a ReversedWildcardFilterFactory in Solr to address this issue. > > -Michael >
