Append Only Data Patterns - Cloud Key Value Stores

Cloud Key/Value databases have some interesting features and limitations that can change the way we model our databases. There is a class of key/value stores that have native change feed support that is in a form that is easy to connect to and operate against.

In CQRS, we capture an event stream in a primary store and then materialize that in a query store.  An alternative to the CQRS pattern is to create an updated version of a document and then append that updated version of the document to the database.  We're going to look at the drivers and patterns for the latter approach.

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Published 2022/10

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