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RFC0012: Add and subtract operations (schema evolution)#6
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RFC0012: Add and subtract operations (schema evolution)#6
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Signed-off-by: Arnau Siches <arnau.siches@digital.cabinet-office.gov.uk>
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@michaelabenyohai this PR is here to let us carry on with the discussion around lenses. |
added 2 commits
January 26, 2018 16:26
Signed-off-by: Arnau Siches <arnau.siches@digital.cabinet-office.gov.uk>
Signed-off-by: Arnau Siches <arnau.siches@digital.cabinet-office.gov.uk>
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Context
Currently, the Registers Data Model has no way to evolve the data structure
described in the schema and used in data items. This means a Register has to
be designed upfront with the right fields forever given it is an append-only
log. We need a way to be able to evolve the schema definition and a way to
reflect such evolution on existing and new data.
Changes proposed in this pull request
This RFC proposes a way to add and subtract fields to a Register, and defines the meaning of this operation.
Please ignore the
notes.mdfile. They're my working notes and they'll be removed once this RFC goes out of wip.