FWIW a related PR was just merged that allows to introspect query execution: https://issues.apache.org/jira/browse/LUCENE-9965. It's different from your use-case though in that it is debugging information for a single query rather than statistical information across lots of user queries (and the approach on that other issue makes things much slower so you wouldn't like to enable it in production).
Out of curiosity, what are you doing with this information about which execution path is chosen? On Wed, Jun 9, 2021 at 2:14 PM Egor Moraru <moraru.e...@gmail.com> wrote: > Hi, > > At my current project we wanted to monitor for a specific field the > fraction of indexed vs doc values queries executed by > IndexOrDocValuesQuery. > > We ended up forking IndexOrDocValuesQuery and passing a listener that > is notified when the query execution path is decided. > > Do you think this is something the community might be interested in? > > Kind regards, > Egor Moraru. > -- Adrien
