> On 10 Jan 2024, at 23:36, Shawn Heisey <apa...@elyograg.org.INVALID> wrote: > > On 1/10/24 15:22, Ing. Andrea Vettori wrote: >> Is it the expected behaviour that a query like >> someotherconditions OR -field:value >> returns different result than >> someotherconditions OR (-field:value) >> It seems to me that the first works like the OR is instead and AND. > > Welcome to the fun world of negative queries. > > The way you should construct that query to remove all ambiguity is: > > someotherconditions OR (*:* -field:value) > > The reason this is a problem is that a negative clause like that is a > subtraction. So your first query is basically "Give me all documents that > meet these conditions and then subtract documents where "field" is "value". > Which is most likely NOT what you were wanting to get. > > With the second form, because the purely negative query is separated by the > parentheses, Solr is able to detect the incorrect syntax, and it > automatically adds the "all documents" before the negative query so the > effective query is what I suggested above. > > Solr is only able to detect a purely negative query if it is not mixed in > with other clauses.
Thank you for the clarification!
