172 lines
8.5 KiB
Markdown
172 lines
8.5 KiB
Markdown
# Session handoff — 2026-06-10 (61)
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Sixty-first handover. Continues from handoff-60 (Gitea migration
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cleanup + V1 relationship visualization, ADR-0044). This session was
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a **list-trimming pass on "easy wins"**: it closed **X1**
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(comprehensive logging, full sweep) and both **T3 residuals** (the two
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ADR-0043 messaging-polish items). Four commits, all green, all
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user-confirmed.
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## §1. State at handoff
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**Branch:** `main`. **HEAD `5a33f2a`.** 4 commits this session
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(`a8ad0c6` → `5a33f2a`) on top of session-60's 5; push is the user's
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step.
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**Tests: 2211 passing / 0 failing / 1 ignored** (lib 1588, it 431,
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typing_surface_matrix 192; the 1 ignored is the long-standing
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doc-test). **Clippy clean** (nursery, all targets). +4 over the
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handoff-60 baseline of 2207 (one test per residual at each of the
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enrichment + render layers, plus the two grammar/worker tests).
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This session's commits:
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```
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5a33f2a fix(fk): compound-FK violation message names every column pair
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6985a43 fix(fk): inline FK referencing a compound PK points at the table-level form
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0a7612e feat: comprehensive logging across parser, app, persistence, runtime (X1)
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a8ad0c6 feat(db): comprehensive logging across worker + executors (X1)
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```
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## §2. X1 — comprehensive logging (closed, `[x]`)
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The full-sweep instrumentation pass the "log liberally" standard
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called for. **~75 → 135 `tracing` sites** under a documented level
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discipline now living in the **`src/logging.rs` module doc** (read it
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before adding logs — it is the durable convention).
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**Levels:** `error` = unrecoverable; `warn` = recoverable / fallback
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taken; `info` = low-volume lifecycle (worker start/exit, project
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open); `debug` = the bulk, one line per *executed* command + its
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decision points (off by default, opt-in `RDBMS_PLAYGROUND_LOG=debug`);
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`trace` = hot paths only (per-keystroke parse, per-key input).
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**Where logs go (was a point of confusion):** always a **file**
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(stdout/stderr would corrupt the TUI). Path precedence: `--log-file`
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> `RDBMS_PLAYGROUND_LOG_FILE` > default `~/.rdbms-playground/
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playground.log` (append mode). Level filter is the *separate*
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`RDBMS_PLAYGROUND_LOG` env var, default `info`.
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**Coverage by commit:**
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- `a8ad0c6` **db.rs** (26→67): entry-`debug!` on all 34 `do_*`
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executors (DDL/DML/relationship/index/read), matching the existing
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`do_sql_delete`/`do_run_select` style — so the route through
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*delegating* executors (e.g. `add_column` →
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`add_constrained_column_via_rebuild`) is visible in the log
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*sequence*. Decision-point logs: `rebuild_table_with_copy`
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begin/commit (+ FK-check-failure and `foreign_keys` re-enable
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failure as `warn`), `do_insert` autofill summary, `do_delete`
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cascade summary, `do_create_table` FK resolution. Worker
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start/exit `debug!`→`info!`.
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- `0a7612e` **rest**: `persistence/mod.rs` logs every yaml/CSV/history
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write (the silent-failure disk paths); `runtime.rs`
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`execute_command_typed` dispatch; `app.rs` submit /
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`dispatch_app_command` / ADR-0044 diagram-vs-prose render choice;
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`dsl/parser.rs` parse begin/outcome at **`trace`** (the
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`parse_command_inner` choke point — `completion.rs` re-parses
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per-keystroke, probing candidates in a loop, so `debug` would
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flood).
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**Verification:** emission proven end-to-end through the *real* worker
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thread + real `logging::init` via two throwaway smoke tests (db path
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and persistence path), both since deleted. The DA-honest gap: a few
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internal read-only helpers (`do_find_rows_matching`,
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`do_read_relationships`, `do_list_names_for`) and the thin `*_request`
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wrappers are not *individually* instrumented — the wrappers delegate
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to logged executors (skipped to avoid double-logging), the helpers are
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low-value. Effective coverage is complete via logged entry points; it
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is not literally 44/44.
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## §3. T3 residuals — both closed (ADR-0043)
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Two messaging-only items carried since handoff-59 §4; FK
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correctness/enforcement was never affected.
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**#1 — inline-FK arity wording (`6985a43`).** `col REFERENCES P(a,b)`
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referencing a compound PK gave the generic arity error. An inline
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column-level FK is single-column by construction, so it now points at
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the table-level form: *"an inline column reference can only name one
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column … Use the table-level form instead: `FOREIGN KEY (<columns>)
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REFERENCES P (a, b)`."* Mechanism: new **`inline: bool` on
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`SqlForeignKey`**, set by the single shared grammar builder
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`consume_fk_reference` (true for the inline path at `ddl.rs:1560`,
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false for table-level `1590` and `build_alter_fk`); threaded into
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`resolve_fk_parent_columns`, which tailors the arity-mismatch message
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when `inline && parent_key.len() > 1`. 6 construction sites total (2
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grammar + 1 ALTER delegate + 3 test literals) — hand-edited, **not**
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the scripted sweep handoff-59 §4 warned about. The bare inline form
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(`col REFERENCES P`, no parens) hits the same arity branch, so it is
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covered by the same code (tested via the explicit-parens form).
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**#2 — compound-FK violation names every pair (`5a33f2a`).**
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`enrich_fk_violation` (`runtime.rs`) picked only `local_columns
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.first()` / `other_columns.next()`. It now gathers all pairs of the
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matched relationship and carries them **comma-joined in the existing
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single-column facts slots** (`column`, `parent_column`, `value`), so
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the headline reads *"no parent row in `Region` has `country, code` =
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`7, 8`."* No facts-model or catalog change — joined strings flow
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through the existing `{parent_column}`/`{value}` placeholders.
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Single-column behaviour is byte-identical (a one-element join is the
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element). **Known minor awkwardness:** the *verbose hint* interpolates
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`{parent_table}.{parent_column}` → `Region.country, code`, which reads
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a touch oddly; the headline is clean. A perfectly-formatted compound
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hint would need catalog work, out of scope for a messaging-polish
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residual — flagged, not fixed.
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## §4. Remaining open landscape (unchanged except X1)
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**Closed this session:** X1 → `[x]`; both T3 residuals (ADR-0043 fully
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wrapped — no residuals left).
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**Still `[/]` / `[~]` / larger (design-first, own ADR):**
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- **V2 / S3** multi-result tabs — output-model redesign.
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- **V3** whole-DB ER export; **V4** scrollable journal + Markdown
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(also the home for diagram live-reflow, ADR-0044 OOS-1).
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- **A1** app-commands — blocked on `seed` (SD1) + `hint` (H2).
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- **H1a** parse-error syntax help (partial; ADR-0021).
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- **DOC1** reference docs.
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**`[ ]` not started:** H2 `hint`, SD1 `seed`, C4 m:n convenience, B3
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query-timeout, I1 multi-line input, I1b readline shortcuts, I5
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cancellation, **TT5 CI** (now Gitea Actions / Woodpecker — a fresh
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decision tied to the migration + ADR-0001's reopened distribution
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question), TT4 PTY (spec-only), D1–D3 distribution, NFR-1…7.
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**ADR-0044 OOS for later:** OOS-7 user-configurable relationship-
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display setting (always-prose / always-diagram / auto-by-width).
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## §5. Next job — candidates (by readiness)
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No forced next step. Recommended order:
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1. **TT5 CI** — test infra is solid (2211 green) and now there is real
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logging to surface failures; no pipeline yet. A fresh **Gitea
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Actions / Woodpecker** decision (earns a short ADR; ties into
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ADR-0001's reopened distribution question). Highest leverage:
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protects everything else.
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2. **SD1 `seed`** then **H2 `hint`** — the two unblockers for **A1**
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app-commands; both are net-new, self-contained features (each its
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own ADR).
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3. **C4 m:n convenience** — auto-generate a junction table; depends on
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relationships, which are now solid (ADR-0043/0044 done).
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4. **V2/S3 tabs** or **V4 journal** — larger output-model redesign;
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design-first, own ADR. V4 also unlocks diagram live-reflow.
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## §6. How to take over
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1. Read handoffs 59 → 60 → 61, then `CLAUDE.md` (Gitea/`tea` section),
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`docs/requirements.md` (X1 now `[x]`), `docs/adr/README.md`.
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2. **Before adding any logging:** read the level-discipline block in
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the `src/logging.rs` module doc (the X1 convention).
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3. **For FK/relationship work:** ADR-0043 (compound FKs) + ADR-0044
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(visualization) are both fully landed; `SqlForeignKey` now carries
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`inline`.
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4. Codebase on `main` at `5a33f2a`, clean, 9 commits unpushed (5 from
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session 60 + 4 this session).
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5. Process pins that paid off: **verify log emission end-to-end, not
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just that it compiles** (throwaway smoke tests through the real
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worker thread caught nothing broken but proved the stack);
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**hot-path logging belongs at `trace`, not `debug`** (the parser);
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**test-first on both residuals** (red → green at every layer);
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**hand-edit struct-field ripples, never script them** (handoff-59
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§4's scare avoided). Commits user-confirmed, append-only, no AI
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attribution.
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