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vzsg avatar vzsg commented on May 15, 2024

Two-phase commits are a very common and useful pattern in NoSQL too.

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tanner0101 avatar tanner0101 commented on May 15, 2024

@vzsg @0xTim would you guys mind supplying some example code for what this might looks like? Or links to implementations in other frameworks. That would help a ton!

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vzsg avatar vzsg commented on May 15, 2024

In JDBC, PreparedStatement.executeUpdate returns an integer – the number of updated rows (explanation here).

In go, sql queries return a Result that contains a RowAffected field: source.

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tanner0101 avatar tanner0101 commented on May 15, 2024

Thanks @vzsg!

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ypotsiah avatar ypotsiah commented on May 15, 2024

Hey!
Any updates on it? Or at least maybe some workaround for now (for PostgreSQL)?

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0xTim avatar 0xTim commented on May 15, 2024

cc @gwynne

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ryanmalesic avatar ryanmalesic commented on May 15, 2024

Affected rows on update would be a great feature for implementing optimistic locking (i.e. update with filter on etag. If no rows were updated I need to throw a 412 Precondition Failed back to the user)

Tracking from vapor/fluent#537

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0xTim avatar 0xTim commented on May 15, 2024

@gwynne I'm pretty sure this came from you originally 😆

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