Codifies the fix for the ADR-0042 cross-branch collision (resolved this
merge by renumbering the website ADR to 0044): ADR numbers are assigned
when a branch merges to main, not at creation. On a branch, draft under
a placeholder (ADR-XXXX title / draft-<slug>.md filename); main's
docs/adr/README.md is the single source of truth for the next free
number.
- ADR-0000: new "Numbering discipline" section.
- CLAUDE.md: pointer to it from the documentation-discipline note.
Audit of all 35 [ ] items vs source found ~46% mis-marked. Add a
[/] partial marker; promote 7 shipped-but-open items to [x]
(S1/S4/S5/I1a/I3/I4/C1) and 9 substantially-built ones to [/]
with gap notes (S3/A1/V1/V2/V5/T3/H3/DOC1/X1). Fix CLAUDE.md's
false "Tier 4 is wired" claim — no PTY tests exist.
target/ had reached 38 GB, dominated by a 16 GB incremental cache
(~28 compilation units × every historical config, never evicted) and
~25 separate integration-test binaries each statically embedding the
bundled engine + full debug info.
[profile.dev] (inherited by the test profile):
- incremental = false: the cache earns little in a full-suite workflow
and never self-evicts; off, target/ stays bounded.
- debug = "line-tables-only": keeps file:line in panics/backtraces (we
debug via tracing logs) at a fraction of debug=2's size.
Net: a clean full build dropped from 38 GB to ~1.6 GB. Document the
rationale plus the cargo-sweep workflow (the GC cargo lacks) under a
new CLAUDE.md "Build hygiene" section; also drop the now-shipped H1
from CLAUDE's deferred list (H1a remains).
explain now wraps the advanced SQL commands — select, with (CTE),
insert, update, delete — in addition to the DSL show data/update/
delete it already covered, rendering through the same plan tree
(ADR-0039, closing the ADR-0030 OOS-2 gap).
Implemented as a second Advanced `explain` CommandNode under the
shared entry word, reusing the established shared-word dispatch
(SQL-first, DSL-fallback) rather than new grammar machinery.
build_explain_sql slices the inner SQL off the source and reuses the
existing SQL builders; do_explain_plan runs EXPLAIN QUERY PLAN over
the carried text verbatim (never executes, so safe for destructive
verbs). Advanced explain update/delete now route through SQL with an
identical plan; DSL-explain tests pinned to simple mode. Help and
usage text now list the advanced explain forms.
Realises ADR-0030 §10 (the DSL→SQL teaching bridge) as a /runda'd design
set, before implementation:
- ADR-0037 (new): execution-time mode side-channel — SubmissionMode
{Simple, Advanced, AdvancedOneShot} threaded Action→worker, output-only;
redeems ADR-0033 Amendment 3's deferred follow-up. Replay stays silent.
- ADR-0038 (new): the teaching echo + full catalogue (Buckets A/B/C),
the copy-paste round-trip contract, the three-category framework, and
the Value→SQL-literal renderer. DDL + show-data centric (overlapping
DML is SQL-first, so already SQL). Build-order deps recorded.
- ADR-0035 Amendment 2: standard-first dialect stance + ALTER COLUMN
SET/DROP NOT NULL, SET/DROP DEFAULT, ISO SET DATA TYPE gap-fill.
- ADR-0033 Amendment 4: reclassifies the `update … --all-rows`
non-fall-back as a bug; it now falls back to the DSL Update and echoes
(keyed on adjacent `--`; spaced arithmetic preserved).
- ADR-0039 (new): EXPLAIN over advanced SQL — decision recorded, build
deferred; supersedes ADR-0030 §13 OOS-2.
- ADR-0000: out-of-scope discipline (deferred vs rejected). README index
updated for all of the above.
Reconcile CLAUDE.md: simple-mode column ops are implemented, not pending
(requirements.md C2/B2 already [x]).
Flip stale Phase-1 checkboxes whose capability is clearly delivered:
M1/M2/M3 (modes), Q1/Q2 (SQL subset — shipped via the unified walker, not
sqlparser-rs), TT1/TT2/TT3 (test tiers 1–3) → [x]; TT4 (PTY e2e, critical
flows only) → [~].
Fix stale CLAUDE.md claims: the stack no longer uses chumsky (DSL) or a
reserved sqlparser-rs (SQL) — both retired (ADR-0024 §migration Phase F);
the DSL and advanced-mode SQL are both parsed by the unified grammar
walker (ADRs 0024 / 0030–0036). Corrects the stack note, drops the
now-done "SQL handling in advanced mode" deferred bullet, and updates the
parser.rs layout comment.
Lower-confidence items (C1 rename, A1, I1a, I3, I4, T3, V2, export/import,
resume) left for a dedicated per-item reconciliation pass (handoff-45 §5).
Settles the undo/snapshot half (U1/U2) before implementation:
- every-mutation single-step undo (supersedes destructive-only model)
- hybrid whole-project snapshot (db backup API + yaml/csv copy),
reconciling ADR-0006 with ADR-0015's derived-db model
- persisted N=50 ring; redo discarded on new work
- batch ops (replay + future) record one undo step; import excluded
- --no-undo disable switch
Adds the implementation plan and updates README index, requirements
U1/U2, and CLAUDE.md in lockstep.
`add index` / `drop index` (ADR-0025) and `explain` (ADR-0028)
are both done, so they no longer belong under "Things
deliberately deferred". Folded into a new "Indexes & query
plans" entry in the decisions-at-a-glance list.
ADR-0028 (query plans / `explain`) is fully implemented; the
handoff-16 design trio (ADR-0026 / 0027 / 0028) is now closed.
- handoff-21: session summary, the two deliberate deviations
from handoff-20's plan, test coverage, open clusters.
- requirements.md: QA1 / QA2 ticked.
- CLAUDE.md: the `EXPLAIN QUERY PLAN` deferred-items line
updated to "implemented per ADR-0028".
Sweep: input_verdict tests confirm the schema-existence check
fires across the identifier-taking commands — unknown table
on drop / show / add column, unknown column on drop column /
update — and that known references stay clean. The Step B
check is grammar-generic, so this is verification + coverage
rather than new code.
Docs: requirements.md S6 -> [x], baseline 1096; CLAUDE.md
deferred list reconciled (C5a and S6 are done — removed);
ADR-0026's as-built note updated (step 5 shipped via
ADR-0027); ADR-0027 gains an As-built notes section
recording the post-walk diagnostics realization, the
pre-rendered message, the timeout-based debounce, coarse
WARNING spans, and the deferred highlight/hint wiring.
Adds tests/typing_surface/where_expression.rs — 9 matrix
cells for the complex WHERE / show-data limit typing surface:
operator candidates after an operand, AND / OR after a
predicate, NOT, BETWEEN / IN bounds, and `show data`
where / limit.
Writing the cells surfaced a grammar bug. `predicate_tail`'s
`[NOT] negatable` branch started with `Optional(not)`, and an
Optional-first `Seq` always "commits" — so on an incomplete
input the walker's `Choice` returned that branch's
`Incomplete` early and discarded every sibling branch's
expected set, dropping `is` and the comparison operators from
completion after a column. Fixed by splitting it into
explicit `NOT negatable` and bare `negatable` branches — no
`predicate_tail` branch starts with an `Optional` now. The
matched terminal sequence is unchanged, so `build_expr` is
untouched.
Docs: ADR-0026 gains an "As-built notes" section recording
the option-1 builder realization, its two deviations from the
§3 sketch, and the deferral of §7 diagnostic flagging to
ADR-0027. requirements.md C5a -> [x] (steps 1-4) with the
test baseline refreshed to 1079; CLAUDE.md's deferred list
reconciled (C5a implemented; the QA1/QA2 note now points at
ADR-0028).
Implement ADR-0025 — indexes as a DSL DDL feature.
- Grammar: `add index [as <name>] on <T> (<cols>)`, `drop index
<name>` / `drop index on <T> (<cols>)`, plus a `--cascade`
flag on `drop column`.
- db.rs: index operations over the engine's native index
catalog (no metadata table). The rebuild-table primitive now
captures and recreates indexes, so `change column` and the
relationship operations no longer silently drop them.
- `drop column` refuses an indexed column unless `--cascade`,
which drops the covering indexes and reports each.
- Persistence: additive `indexes:` list in `project.yaml`
(version unchanged); round-trips through rebuild/export/import.
- Display: an `Indexes:` section in the structure view and a
nested tables/indexes items panel (S2).
Reconciles requirements.md (C3 index portion, S2 satisfied)
and CLAUDE.md. 1038 tests passing (+31), clippy clean.
Specifies the curated per-cell classification (clean /
lossy / incompatible) for column type changes, the static
transformer matrix (numeric chains, text↔structured types,
always-clean stringifications), and the PK / shortid /
uniqueness-bearing handling. Replaces the B2/C2
placeholder of "rely on engine STRICT and surface its
errors" with a learner-friendly model that:
* refuses incompatibles up-front,
* refuses lossy conversions by default with a re-run-with-
--force-conversion hint,
* refines the PK refusal: an inbound-FK PK is only refused
when the new type would change the FK target type
(so `serial → int` and `shortid → text` on FK-referenced
PKs are allowed; `int → text` etc. still refuse),
* adds a post-transformation uniqueness check for PK and
shortid columns,
* uses the pretty-table renderer (ADR-0016) for all
diagnostic row lists,
* emits a `[client-side] …` note in the success summary
whenever the transformer rewrote any cell.
`--force-conversion` accepts loss; `--dont-convert` skips
the client-side layer entirely; mutually exclusive.
Forward-look: a future iteration may add resolution flags
(`--default 0`, `--on-incompatible '<value>'`).
Also amends ADR-0002 with a new "User-facing posture"
section cementing that the database engine choice is an
implementation detail and is never named in user-visible
strings. Adds a corresponding bullet to CLAUDE.md's
working-style rules so every session picks it up.
Implementation lands as a follow-up.
Adds docs/handoff/20260508-handoff-2.md describing the state at
the end of this session: ADR-0015 designed, Iterations 1-4 of
track 2 shipped (file-backed projects with auto-named [temp]
dirs, per-command write-through, rebuild from text on missing
.db, save/save as/new/load/rebuild commands with modal dialogs
and project switching), plus the cleanup pass (--help, in-app
help, post-rebuild message, unmodified-temp cleanup) and the
safety hardening of safely_delete_temp_project. Lists the
next-up moves (Iteration 5: export/import, Iteration 6:
--resume + persistent input history + migration scaffold) and
an end-to-end smoke test.
requirements.md: marks P1-P5, P-NAME-1/2/3, F1, F2, U3, L1 as
[x] with iteration references; adds P-CLEAN-1 for the safe
cleanup; updates A1, I2, H3, L1a progress notes.
CLAUDE.md: updates the project-storage decisions and
deferred-items entry to reflect what's now live vs. still
pending.
Designs track-2 lifecycle and persistence end-to-end: per-command
write-through to db+yaml+csv+history.log gated by the combined db
persistence logic with commit-db-last ordering; existence-only load
with explicit rebuild command; --resume CLI flag backed by
<data-root>/last_project; in-TUI list-with-browse picker; lock file
for single-instance enforcement; fatal-banner-then-quit failure
model (with --resume making restart cheap); fatal CSV row-load
errors with full diagnosis; YYYYMMDD-word-word-word temp naming
with display-name prettifier; collision-checked names for both
temp and user-supplied projects. Project name lives only on the
filesystem (not duplicated in YAML). ADR-0004 and ADR-0007 amended
in place. requirements.md and CLAUDE.md updated; OOS-6 (global
rolling history) tracked as deferred.
- New docs/handoff/20260507-handoff-1.md captures session
state, what's implemented, what's pending (ranked
recommendations for next moves), sharp edges, and a
smoke-test sequence.
- CLAUDE.md updated to reflect current reality: ADRs 0008-
0014 added to the decisions-at-a-glance list, the
"repository layout (planned)" placeholder replaced with
the actual layout, key invariants spelled out, deferred
list rebuilt from current requirements.md.
Captures up-front design decisions for RDBMS Playground:
stack (Rust + Ratatui + SQLite), input modes, project file
format, type vocabulary, undo snapshots and replay log,
sharing/export, and testing approach. ADR-0000 establishes
the ADR practice itself and mandates index upkeep alongside
any ADR change.
claude@clouddev1