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by gwen-shapira
921 days ago
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Possibly. I tried hard to have some memorable examples. But I'll be honest: Every time I got review comments (or re-reviewed myself), it took a bit of time for my brain to warm up again into "transaction mode". The big lesson may that concurrent transactions are pretty hard to reason about without external assistant like diagrams or test scenarios. I really like the system Postgres uses for transaction testing (AKA - deterministic simulation testing). Create scenario that match your business logic and then run them serially but with different ordering of statements and make sure the results are as you expect. |
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