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## Base structure
> - databaze kde mas dva druhy objektu: data, a meta
> - (jedinej rozdil je, ze data actually odkazujou hashem na nejakej file, a meta neodkazujou nikam, jenom slouzej jako "anchor")
> - (jedinej rozdil je, ze data actually odkazujou [[hash]]em na nejakej file, a meta neodkazujou nikam, jenom slouzej jako "anchor")
> - a ke kazdymu objektu muzes mit arbitrarni keys a values
> - kazdy takovy key/value tvori `E/A/V` triplet (see [Entity Attribute Value model (Wikipedia)](https://en.wikipedia.org/wiki/Entity%E2%80%93attribute%E2%80%93value_model)):
> - kazdy takovy key/value tvori jeden `E/A/V` triplet (see [Entity Attribute Value model (Wikipedia)](https://en.wikipedia.org/wiki/Entity%E2%80%93attribute%E2%80%93value_model)):
> - `E`ntity = objekt (`neconeco.mp3`, resp. jeho [[hash]])
> - `A`ttribute = klic (`year`)
> - `V`alue = hodnota klice (`2020`)
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## Highly adjacent projects!
### Datalog
v podstate identicky E/A/V model
[Learn Datalog Today!](http://www.learndatalogtoday.org/chapter/1)
### BeOS / HaikuOS
<https://www.howtogeek.com/696193/what-was-beos-and-why-did-people-love-it/>
Idea s [[filesystem]]em jakozto databazi s metadaty:
<https://www.haiku-os.org/docs/userguide/en/workshop-filetypes+attributes.html>
# Information enters, is processed
![[mapping_language.png]]