Merge pull request #34473 from DevTeamBK/divide_by_zero

clang-tidy reported potential chance for divide by zero exception

src/AggregateFunctions/ReservoirSampler.h

@@ -239,6 +239,7 @@ private:
 
     UInt64 genRandom(size_t lim)
     {
+        assert(lim > 0);
         /// With a large number of values, we will generate random numbers several times slower.
         if (lim <= static_cast<UInt64>(rng.max()))
             return static_cast<UInt32>(rng()) % static_cast<UInt32>(lim);