auto rdf =
   ROOT::RDF::FromSqlite("http://root.cern/files/root_download_stats.sqlite", "SELECT Version FROM accesslog;");

TH1F hVersionOfRoot("hVersionOfRoot", "Development Versions of ROOT", 8, 0, -1);

auto fillVersionHisto = [&hVersionOfRoot] (const std::string &version) {
   TString copyVersion = version;
   TString shortVersion(copyVersion(0,4));
   hVersionOfRoot.Fill(shortVersion, 1);
};

rdf.Foreach( fillVersionHisto, { "Version" } );

auto VersionOfRootHistogram = new TCanvas();

gStyle->SetOptStat(0);
hVersionOfRoot.GetXaxis()->LabelsOption("a");
hVersionOfRoot.LabelsDeflate("X");
hVersionOfRoot.DrawClone("");

%jsroot on
gROOT->GetListOfCanvases()->Draw()