There is a big difference between the changestream of many SQL and noSQL databas... | Hacker News

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dsun180 on Oct 25, 2019 | parent | context | favorite | on: Rxdb: A reactive database where you can subscribe ...

There is a big difference between the changestream of many SQL and noSQL databases, and what RxDB does. Having a stream of changes is useful but not the whole solution. RxDB is capable of using single document changes of a stream and recalculate the new results of an existing query. This saves you not only much IO performance but makes developing much easier. See https://rxdb.info/query-change-detection.html

tga on Oct 25, 2019 [–]

Sure, that's handy as an extra feature to get better performance, but I see that even in RxDB it's currently in beta and turned off by default.

I suppose this could be the killer feature to warrant using a new database -- because otherwise, from a user point of view, the result is the same.

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