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| 1 | -- sealed_path is a document's ancestry in its source — "Handbook › |
| 2 | -- Onboarding" for a page nested two deep. Sealed under its own HKDF |
| 3 | -- purpose, because a path is content: "Acquisitions › Project Bluebird" |
| 4 | -- names a thing whether or not anyone opens the page. |
| 5 | -- |
| 6 | -- Nullable rather than NOT NULL DEFAULT: existing rows came from upload |
| 7 | -- and paste, which have no ancestry, and an empty blob and "no ancestry" |
| 8 | -- are the same fact here. A DEFAULT would also have to be a valid |
| 9 | -- sealed blob, which "" is not. |
| 10 | ALTER TABLE `documents` ADD `sealed_path` blob; |
| 11 | |