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by mattashii 415 days ago
Kinda. I think it's "just" PostgreSQL behaviour that's to blame here: On replicas, transaction commit visibility order is determined by the order of WAL records; on the primary it's based on when the backend that wrote the transaction notices that its transaction is sufficiently persisted.

See also my comment https://news.ycombinator.com/item?id=43843790 elsewhere in this thread