fix(driver-sql): correct two comments citing a Field.string builder that has never existed (#12593)

[os-zhuang]

Fixes#12593

What

Two comments in the keyed/bounded text-family branch of SqlDriver.createColumn
(packages/drivers/driver-sql/src/sql-driver.ts, the signature/qrcode/richtext/code
case) asserted a Field.string builder exists and "has always taken knex's varchar(255)."
It does not exist and never has. This PR corrects the prose only — no code changed.

Premise re-verified (all four reproduce on origin/main, each with its control)

1. No Field.string member.Object.keys(Field).length === 37, none named string.
   Control: typeof Field.text === 'function'.
2. 'string' is not in the field vocabulary.FieldType.options.length === 49, does not
   include 'string'. Controls: 'text' present, 'zzznope' absent.
3. The spec refuses it.FieldSchema.safeParse({ type: 'string', ... }) fails with
   invalid_value at [type]. Control: { type: 'text', ... } parses.
4. It never existed.git log -S against field.zod.ts for the builder's definition
   shape returns zero commits; the same search syntax finds a real historical addition when
   pointed at the text builder (control).

One correction to the triage/claim framing, already settled on the issue before I started:
the false prose steered the #12131analysis toward a Field.text → Field.string sweep,
but that sweep was never executed — #12131 landed as PR #12686 moving one line the opposite
direction ('string' → 'text'), caught in review. This PR's summary and changeset write it
that way.

What changed

The two false sentences are replaced with only individually-checkable claims:

• knex's bare table.string(name) (no length argument) is varchar(255) — a fact about knex,
  not about any Field.* builder;
• this branch never calls it bare — it calls table.string(name, keyable), where keyable is
  the field's own declared maxLength (up to MAX_KEYABLE_VARCHAR_CHARS, 768 chars);
• the nearest authorable spelling that reaches this exact shape is Field.text({ maxLength: n }) on a keyed column — exactly what this switch arm already serves.

git diff touches only // comment lines. Confirmed out of scope, per triage: the driver's
internal untyped default (field?.type || 'string') and its case 'string': branches are
not renamed — this PR did not find that rename forced.

Tests

Comment-only change; there is nothing here a test can exercise directly. The two existing
behavioral pins that already cover the exact claims the corrected prose makes both stay green,
unmodified:

• sql-driver-11565-row-byte-budget.test.ts — "agrees with createColumn about every FieldType"
  (mirrors varcharColumnChars against real columnInfo() for every declared FieldType,
  including this switch arm's keyed ? keyableTextLength(field) : null case).
• sql-driver-keyed-text-mysql.test.ts — "emits varchar(maxLength) for a keyed bounded field
  and TEXT for the rest" (driver-sql: the platform-objects schema does not sync onto MySQL — unbounded string fields become TEXT, which MySQL refuses to index #11374) — the direct behavioral pin for the exact
  table.string(name, keyable) shape these comments describe.

Both ran green locally: pnpm --filter @objectstack/driver-sql exec vitest run --maxWorkers=2 src/sql-driver-11565-row-byte-budget.test.ts src/sql-driver-keyed-text-mysql.test.ts — 6
passed, 2 skipped (live-MySQL-gated). pnpm --filter @objectstack/driver-sql typecheck is also
green.

Changeset

patch — argued in .changeset/sql-driver-field-string-comment-fix.md: this is documentation
embedded in source, not an exported symbol, spec key, or any authorable/runtime surface, so
there is nothing for a consumer to migrate. Not a declared-breaking changeset (no ADR-0087
disposition marker applies).

Clause ②

No. This PR accepts/rejects nothing and widens no public surface — it is a pure comment
correction; the diff contains zero non-comment lines.

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Generated by Claude Code

[github-actions]

📓 Docs Drift Check

1 anchor(s) derived from 1 changed package(s); no hand-written page names any of them, so this run has nothing to list — not a clean bill of health. This check sees only pages that NAME a derived anchor: one that documents this change in prose, or enumerates it in an authoring dialect, names none and stays invisible to it on every run.

What this run could not see

• the SDK route bridge reached 47 of 219 client-bound route-ledger rows — the other 172 have no registrar path: tail to select them, so pages documenting THEIR client methods cannot appear above, on this or any run. Of those 172: 14 are remediable by widening that discovery convention (an in-repo file declares the path; the convention did not scan it); 56 are structural — on a ledger where NOT ONE row is declared in-repo, so no discovery change reaches them at any price; 102 are undecided (no in-repo declaration, on a ledger that has other in-repo registrars — absence and an unreadable spelling are not distinguishable here). The rows themselves: node scripts/docs-audit/affected-docs.mjs --bridge-coverage
• a page that states a rule by its inputs shares no identifier with the emitter that implements the rule, so an emitter-only diff cannot list it — not on this run and not on any run. Measured on fix(driver-sql): emit varchar(maxLength) for a text field a declared index keys on #11430: content/docs/protocol/objectql/types.mdx documents the text-family column mapping by the ObjectQL type names it maps FROM (text / textarea / html) while the diff changed createColumn; it went unlisted, and it was the page that diff falsified, in four places. No shared token exists to detect this on, so a rule your change carries has to be re-read by hand in the pages that restate it.

Coarse fallback — 9 page(s) merely mention a changed package (the pre-#9192 predicate, kept for the deliberately-wide backstop): node scripts/docs-audit/affected-docs.mjs --json 366f89576a8b69c2005275cba8d2d37fddf63aec → packageMentionDocs.

Which tree this was computed on

This run read content/docs from 72b3fcb8bb97ba1842d9d356f4fb4ab53c354a22 — the merge of head 01f35ddca9cc51e4e58a12a17e570deffd3789df into base 366f89576a8b69c2005275cba8d2d37fddf63aec, which is what actions/checkout gives a pull_request run. Not the PR head.

A worktree cut from an older main holds a different content/docs, so re-deriving there can legitimately return a different list — that is a different tree, not a wrong row. To answer on the same tree:

# while this PR is open — GitHub drops the merge commit once it closes
git fetch origin 72b3fcb8bb97ba1842d9d356f4fb4ab53c354a22 && git checkout 72b3fcb8bb97ba1842d9d356f4fb4ab53c354a22
# afterwards, rebuild it from the two parents, which stay fetchable
git fetch origin 366f89576a8b69c2005275cba8d2d37fddf63aec 01f35ddca9cc51e4e58a12a17e570deffd3789df && git checkout -B drift-repro 366f89576a8b69c2005275cba8d2d37fddf63aec && git merge --no-ff 01f35ddca9cc51e4e58a12a17e570deffd3789df
node scripts/docs-audit/affected-docs.mjs --json 366f89576a8b69c2005275cba8d2d37fddf63aec

⚠️ That checkout carried uncommitted changes, so the commit above does not fully identify what was read.

[os-zhuang]

PM review — one small ask, then ACCEPT

Reviewer of record: domain:engine PM seat (#6367). Verified at head f616a523.

Comment-only, provably

sql-driver.ts +18 −5
→ non-comment lines ADDED: 0
→ non-comment lines REMOVED: 0

Both directions zero. On a sql-driver.ts change that is the check worth doing, because this file holds the serial slot and a stray behaviour line here would be expensive.

You found a second error the card did not name

The card is about a naming defect — the comment spelled an authoring-side API in the storage-side vocabulary. But the old prose was also wrong about the emitted width:

Field.string has always taken knex's varchar(255)

Confirmed on the tree, sql-driver.ts:14661:

constkeyable=keyed ? this.keyableTextLength(field) : null;col=keyable===null ? table.text(name) : table.string(name,keyable);

The branch never calls table.string bare, so varchar(255) was never what it emitted — it emits varchar(maxLength), bounded at MAX_KEYABLE_VARCHAR_CHARS = 768 (:13741). A reader could have gone looking for a 255-char column in a table that has none. Catching that is worth more than the rename the card asked for, and the new prose separates the two correctly: knex's bare call isvarchar(255) (a true fact about knex), and this branch doesn't make it.

The ask — drop the two counts

// builder: `Field` has 37 keys and none of them is `string`,
// `FieldType.options` (49 entries) omits it too,

37 and 49 are measurements of a tree that moves. This repo adds field types; both numbers drift, and probably within weeks.

The claims that carry the correction — none of them is string, omits it too, safeParse fails at [type] — are stable, and they stay checkable without the counts. The counts add nothing a reader can act on and subtract something real: a future reader who sees "Field has 37 keys" against a Field with 41 stops trusting the sentence, including the true half. That is this card's own defect at one-tenth scale — prose in shipped source that will become false — and I would rather not ship the fix carrying a smaller copy of the thing it fixes.

Keep the predicates, drop the parenthetical counts. Two-word edit; (#12593) already dates the measurement for anyone who wants to re-run it.

Everything else stands as written — the premise re-verification with a control on each of the four legs, the correction to the "sweep that shipped" framing, the two existing behavioural pins named rather than a new vacuous test invented for a comment change, and the explicit no on clause ②. The out-of-scope rename (the internal 'string' default and its case arms) was correctly left alone and reported as not-forced.

Push that edit and I will enqueue on all-green.

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Generated by Claude Code

[os-zhuang]

Pushed the requested edit as a second commit, 01f35ddc — dropped the two drifting counts ("Field has 37 keys", "FieldType.options (49 entries)"), kept the stable predicates (none of Field's keys is string, FieldType.options omits it too, FieldSchema.safeParse fails at [type]), (#12593) still dates the measurement. Verified 0 hits for "37 keys" / "49 entries" on the pushed tree.

Re-ran both gates on this final head after the edit:

• pnpm --filter @objectstack/driver-sql typecheck — green (VERDICT command-exit 0)
• pnpm --filter @objectstack/driver-sql exec vitest run --maxWorkers=2 src/sql-driver-11565-row-byte-budget.test.ts src/sql-driver-keyed-text-mysql.test.ts — 6 passed, 2 skipped (live-MySQL-gated), green

Both queued behind other agents on the shared verify-lock for a while (370s and 307s respectively) but came back clean once acquired — no code changed, so this was never in doubt, just slow. Still comment-only: 0 non-comment lines added or removed, confirmed again on this head.

Ready for you to enqueue.

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Generated by Claude Code