What is built: Data

Each feature not built yet is toolchain.not_built_yet where it is used.

Feature	Status
Entities, their fields, references, unique rules, indexes and stores	Built.
Migrations, computed backfills and the test database	Built.
PostgreSQL over TLS and through Hyperdrive	Built. Checking a Hyperdrive configuration's caching on a real deploy is not built yet.
D1, and actions on it as reads first and one checked batch of writes	Not built yet.
Lifecycles	Built.
Structured values stored as JSON, and their migrations	Built. Conditions on them, a `unique:` or index over them, and an update by `id` that works one out in the database are not built yet.
The check of every stored value on read	Built. `CHECK` constraints holding fields' rules in the database are not built yet.
Standard types stored in named columns, and the standard collections	Built. Comparing or ordering by them in a query is not built yet.
Manifest nodes	Built: a node for each entity's placement, unique rule, index and reference, with `references` edges between entities, one for each system table and migration snapshot, and one for each lifecycle and transition (`lifecycle Todo`, `transition Todo.delete`, with its `when:`, whether it can refuse a record and the fields it sets).
Other schema changes in `jadpo migrate new`	Not built yet: removing an entity, moving one between stores, dropping a retired column (it needs acceptances), a new `pattern:` on a stored field, and other column type changes.
A worked-out backfill for a field that allows less	Not built yet.
A backfill in Jadpo that fills a value held in several columns, or reads a field held so or as JSON	Not built yet.
Entities in Redis and record caches (`caches:`)	Not built yet. Clearing only the cached entries a change affects isn't designed yet.
Index kinds other than geographic and HNSW	Not built yet.
A database implied only when something needs one	Not built yet: it comes with the first feature that can run without one.
Seeds and `jadpo seed`	Not built yet.
`jadpo rename`	Not built yet: it writes the identity registry (Tooling).

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