Hi, On 2020-04-17 14:12:44 +1200, Thomas Munro wrote: > What about a contrib function that lets you clobber > oldSnapshotControl->current_timestamp? It looks like all times in > this system come ultimately from GetSnapshotCurrentTimestamp(), which > uses that variable to make sure that time never goes backwards.
It'd be better than the current test situation, and probably would be good to have as part of testing anyway (since it'd allow to make the tests not take long / be racy on slow machines). But I still don't think it really allows to test the feature in a natural way. It makes it easier to test for know edge cases / problems, but not really discover unknown ones. For that I think we need more granular bins. - Andres
