Updates #1273.
Squashed commit of the following:
commit 6c2cc73e3360ae12aaa6e2c9834fddfdba925e2b
Merge: effe2230 fb72d543
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date: Mon Apr 12 14:05:04 2021 +0300
Merge branch 'master' into 1273-querylog-opt
commit effe22303fb2053dfe22b6242231b40f4d462735
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date: Mon Apr 12 13:21:06 2021 +0300
querylog: opt client search