fix: stuck queries when too many events with same timestamp #1271

Job	Run time
Run test with Postgres and several data partitions	3m 23s
Run test with Postgres and several data partitions	3m 23s
Checks	2m 5s
Checks	2m 5s
Run test with H2	3m 4s
Run test with H2	3m 4s
Docs	1m 14s
Docs	1m 14s
Run test with Postgres	4m 2s
Run test with Postgres	4m 2s
Run test with Postgres and JSONB payload	1m 30s
Run test with Postgres and JSONB payload	1m 30s
Run test with SQL Server	5m 39s
Run test with SQL Server	6m 38s
Run tests with Yugabyte	22s
Run tests with Yugabyte	4m 10s
	47m 25s

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