Commit graph

2 commits

Author SHA1 Message Date
566559cf70 docs: name the residency value keys, not index (review change)
- `resident: all | keys` replaces `resident: all | index`. Two reasons beyond
  taste: it kills the collision with the `index:` argument
  (`@table(index: [customer], resident: index)` read badly), and it puts both
  values on ONE axis — each now answers "what row data stays resident",
  where `all`/`index` mixed a quantity with a structure name
- accurate as well as clearer: what stays resident is the id->offset map, the
  secondary indexes and the unique shadows — all key structures; row payloads
  are exactly what leaves. `resident: none` was rejected as overclaiming,
  since the indexes very much are resident
- checked for collisions: neither `all` nor `keys` is a keyword or a builtin
  (`key_at`/`val_at` exist, bare `keys` does not)
- the spec's wart note became a recorded decision; the rejected spelling is
  kept quoted so the rationale still reads
- fixes a bug I introduced in the 2026-08-26 track move: all six moved
  iterations carried a banner reading "Part of [Story — the database beyond
  RAM]" whose link pointed at the LANGUAGE arc — correct target, lying text,
  the exact failure mode the link audit warned about. Banners now point at
  the databasev2 story, and the original "Part of" line says plainly which
  track the iteration was authored in before the move
- linkcheck 0 broken / 0 anchors

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-26 22:47:24 +02:00
746dc2b42b docs(databasev2): third track — the database beyond RAM, with per-table storage modes
- docs/stories/databasev2/, numbered from 1. Six PENDING database iterations
  moved from the language track and renumbered, keeping the old id in
  `was_language_iteration:` so a search for "iteration 32" still finds it:
  32 -> 3 WAL checkpoint, 23 -> 4 io_uring commit, 33 -> 7 single-file store,
  27 -> 8 query grammar, 20 -> 9 cross-program, 21 -> 10 keypair auth.
  Done work (9, 9b, 22) stays as v1 history; language 18 left whole
- the problem, read off the engine not guessed: rows are malloc'd slabs with
  addresses stable forever, NO eviction/spill/paging anywhere in database/src,
  the WAL never checkpoints so boot replays all history, and durability is one
  process-global WO_DATA so no table can say it matters more than another.
  An allocation failure IS a clean catchable WO_T_OOM — but swap thrash
  arrives first and carries no error signal at all, which is the real hazard
- four new iterations:
  1 measure the ceiling FIRST (curve not cliff; the three exits; kill -9 at
    exhaustion) — every later default should follow from a number
  2 `@table(mode: ram | durable | cold)` — the grammar ask. Small surface
    (Ast.table_cfg gains a key, the parser already rejects unknown args), big
    semantics: `durable` defaults so nothing changes silently, and the
    compiler refuses a durable row holding a `ref` into a ram table
  5 bounded tables + refuse/evict/back-pressure, shedding BEFORE the OS acts
  6 cold tiering — mostly forks, incl. whether the language surfaces the
    fault cost and whether @unique on cold is refused outright. A paged
    B-tree stays rejected: if tiering needs one, reject tiering
- 39 links repointed, link TEXT renumbered to track-local ids; arc gains one
  pointer row replacing the six moved; board + board-views cover three tracks
- linkcheck 0 broken / 0 anchors; no code blocks in any story

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-26 20:52:48 +02:00
Renamed from docs/stories/language-runtime-database/21-keypair-attach-auth.md (Browse further)