Add another column that reflects order of insert, time stamps have only a single second of granularity, but even if they are more granular, you might insert two data sets close enough in time, that the timestamps will be the same for both.
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I have to say though that order of insertion is often not as important as the developer thinks it were, and if really order is important one should totally rely on the DB managing this column.
Also what is more important to you? Order of insertion into db or order of incomming requests that cause insertion into db? If the latter, I’d go for something self implemented and using mono tonic time as early as possible in the plug chain to carry the time for the request around.
