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Re:Just Use Postgres for Durable Workflows by temporal_thr123 on Thursday May 28, 2026 @03:34PM (#48314271)
Since I'm in a ranting mode -- here's a good example: you're limited to _ONE_ IO per shard in the history service:

https://github.com/temporalio/temporal/blob/e22e6304b3c4a409...

https://github.com/temporalio/temporal/blob/e22e6304b3c4a409...

Temporal does a crazy amount of database operations and all of these are behind that mutex.

Oh, and you can't change the shard count on existing clusters.

Great stuff.

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