What do you mean by “forms”? Spanner is also layered. The bottom layer is basica... | Hacker News

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		throwaway84742 on April 20, 2018 \| parent \| context \| favorite \| on: Apple open-sources FoundationDB What do you mean by “forms”? Spanner is also layered. The bottom layer is basically a key-value store. On top of that there’s a full blown SQL layer, which, BTW can work with hierarchical records as well as flat tables. Both support transactions and guarantee global consistency.

wll on April 20, 2018 [–]

They may refer to FoundationDB layers. [1] While Spanner may be built on a key-value store equivalent, Google does not expose it as a service.

[1] https://apple.github.io/foundationdb/layer-concept.html

eropple on April 20, 2018 | [–]

That's exactly what I was referring to. Thanks.

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