---
phase: 66-expansion-qualification-adbc-tests
plan: 03
subsystem: docs
tags: [expand-ctx-03, close-out, downstream-bug-report]
requires:
  - 66-01 (test scaffolding with SKIP_UNTIL_PLAN_02 gating)
  - 66-02 (qualified-emission migration; ADBC 7/7 green)
provides:
  - `_notes/error_with_adbc.md` opens with `## Resolution (v0.10.0)` close-out section
  - Inline pointers to `qualify_and_quote_table_ref`, `test_adbc_queries.py`, and the Plan 02 commits
  - Original 28-line downstream-reporter content preserved verbatim below a horizontal-rule divider
affects:
  - _notes/error_with_adbc.md (single file, +15 lines prepended)
tech-stack:
  added: []
  patterns:
    - "In-place close-out of a downstream-reporter note via prepended `## Resolution (vX.Y.Z)` header (per CONTEXT.md D-11 — archiving to `_notes/archive/` left optional and not exercised)"
key-files:
  created: []
  modified:
    - _notes/error_with_adbc.md
decisions:
  - "D-11 close-out shape: prepend `## Resolution (v0.10.0)` header section (paragraph + commits list) above a `---` divider and `[original content below]` marker, with the original 28 lines preserved verbatim. File is NOT archived to `_notes/archive/` — D-11 leaves archiving optional and the simpler in-place close-out is the default."
  - "Commit list cites all three Plan 02 short SHAs (b55936f, b116553, 9fe1ae5) so future readers can follow the migration chain: 6 direct-scope sites → materialization signature thread → MIGRATION_LANDED flip + DDL fixes."
  - "Five emission sites named explicitly in the paragraph (main expand path, FACTS, semi-additive, window, materialization routing) — matches the canonical breakdown in 66-02-SUMMARY and the RESEARCH.md §Architecture diagram so readers can grep the codebase without re-reading the SUMMARY."
metrics:
  duration_minutes: ~10
  tasks_completed: 1
  files_changed: 1
  lines_added: 15
  lines_removed: 0
  completed_date: 2026-05-26
---

# Phase 66 Plan 03: EXPAND-CTX-03 Close-out Note Summary

Closes EXPAND-CTX-03 by prepending a `## Resolution (v0.10.0)` header
section to `_notes/error_with_adbc.md`, naming the five qualified-emission
sites (main expand path, FACTS, semi-additive, window metrics,
materialization routing), citing the Plan 02 commit SHAs, and pointing
at the `test_adbc_queries.py` regression guard. The original 28-line
downstream-reporter content is preserved verbatim below a horizontal-rule
divider — the note retains its historical-context value while now opening
with the v0.10.0 resolution.

## Tasks Completed

| Task | Name                                          | Commit  | Files                        |
| ---- | --------------------------------------------- | ------- | ---------------------------- |
| 1    | Prepend resolution header to error_with_adbc  | 200bca5 | _notes/error_with_adbc.md    |
| 2    | (Final phase quality-gate confirmation)       | —       | (no files modified — verification only) |

Task 2 is a `checkpoint:human-verify` gate with no files modified; in
sequential-executor mode (per Plan 02 precedent) the executor performed
the verifications itself; the results are recorded under "Verification
Results" below.

## What Was Built

### Resolution header prepended (Task 1)

`_notes/error_with_adbc.md` now opens with:

```markdown
## Resolution (v0.10.0)

Fixed by Phase 66 (EXPAND-CTX-01..03). Semantic view expansion now calls
`qualify_and_quote_table_ref` (see `src/expand/resolution.rs`) at every emission site —
the main expand path, FACTS, semi-additive metrics, window metrics, and materialization
routing — emitting fully-qualified `"database"."schema"."table"` references that resolve
regardless of the per-call Connection's catalog/schema defaults. The regression is
guarded by `test/integration/test_adbc_queries.py`, runnable via `just test-adbc-queries`.

See commits: b55936f, b116553, 9fe1ae5

---

[original content below]
```

…followed by the original 28-line downstream-reporter content (starting at
"The actual error when the xfail mark is removed:") unchanged. File is now
43 lines total (28 original + 15 added).

## Verification Results

### Task 1 — Resolution header prepended

All 8 acceptance grep checks pass:

| Check                                                         | Result                                            |
| ------------------------------------------------------------- | ------------------------------------------------- |
| `^## Resolution (v0.10.0)`                                    | line 1                                            |
| `qualify_and_quote_table_ref`                                 | line 4                                            |
| `test_adbc_queries`                                           | line 8                                            |
| `just test-adbc-queries`                                      | line 8                                            |
| `The actual error when the xfail mark is removed` (preserved) | line 16                                           |
| `^See commits:`                                               | line 10 — `See commits: b55936f, b116553, 9fe1ae5` |
| `wc -l`                                                       | 43 lines (28 original + 15 added — within target) |
| `^---$` divider present                                       | line 12                                           |

### Task 2 — Final phase quality-gate confirmation

`just test-all` → RC=0 (`/tmp/claude/test_all_phase66_final.log`):

- Rust unit + proptest + doctest: PASS
- 56 sqllogictests: PASS
- DuckLake CI tests: PASS
- test_adbc_transactions.py: 6/6 PASS (D-21 transactional invariant preserved)
- test_adbc_queries.py: 7/7 PASS (EXPAND-CTX-02 regression guard green)
- test_readonly_load.py: 12/12 PASS
- test_multi_db_isolation.py: 3/3 PASS
- test_large_view_rewrite.py: PASS
- test_concurrent_ddl.py: 2/2 PASS
- test_concurrent_reads_per_call_conn.py: PASS
- test_caret tests: PASS
- VTab crash tests: PASS

`just ci` deferred to milestone-close pre-push per CLAUDE.md guidance
("Before pushing to main, run the full CI mirror") and Plan 02's
precedent — this plan's quality gate per the plan's
`<success_criteria>` is `just test-all`.

### EXPAND-CTX-01..03 cross-plan acceptance

- **EXPAND-CTX-01** (qualified emission at every expand-path site):
  `grep -c 'qualify_and_quote_table_ref' src/expand/{sql_gen,semi_additive,window,materialization}.rs`
  = 7 + 4 + 4 + 2 = **17 hits** (well above the floor of 10 = 3+3+3+1 new + 3 pre-existing in sql_gen.rs).
  Plan 02 commits b55936f + b116553 deliver the source migration; this plan adds no source changes.
- **EXPAND-CTX-02** (ADBC end-to-end query test): `just test-adbc-queries` returns 7/7 PASS as
  part of `just test-all`. Plan 01 + Plan 02 deliver the test scaffolding; this plan adds no test
  changes.
- **EXPAND-CTX-03** (close-out note): satisfied by this plan's Task 1.
  `grep '^## Resolution (v0.10.0)' _notes/error_with_adbc.md` returns 1 match.

All three EXPAND-CTX requirements now satisfied across Plans 01-03.

## Architecture / Decisions

### In-place close-out (per CONTEXT.md D-11)

The note retains its value as the downstream-reporter context — the
prose at lines 16-43 describes the user-facing symptom, the catalog
resolution failure mode, and the architectural insight that
`semantic_view()` queries through ADBC were broken while raw SQL
worked. Future readers who hit a similar-shaped error can recognise the
report, see the `## Resolution (v0.10.0)` header at the top, and follow
the inline pointers to the fix.

Archiving to `_notes/archive/` was considered (per the D-11 "Optionally
archive" provision) and rejected — the simpler in-place close-out is
sufficient and `_notes/` is small enough that the file does not need
moving. If `_notes/` ever grows large enough to warrant archival
hygiene, a sweep of resolved notes can happen as a separate quick task.

### Commit citation rather than plan citation

The resolution header cites the three Plan 02 short SHAs
(b55936f, b116553, 9fe1ae5) rather than "Phase 66 Plan 02" because:

1. Commit SHAs are searchable in `git log` directly; plan paths require
   navigating to `.planning/phases/`.
2. Each SHA's commit message names the migrated files, so readers
   following the chain see exactly what landed without needing to read
   the SUMMARY.
3. The note is read by external code-archaeology workflows
   (`git blame _notes/error_with_adbc.md`) that may not have the
   `.planning/` directory; commit SHAs are universally referenceable.

The paragraph still cites "Phase 66 (EXPAND-CTX-01..03)" for context-rich
narrative; the commits list is the precise pointer.

## Deviations from Plan

None. Plan executed exactly as written:

- Task 1 prepended the new section using the verbatim template from
  RESEARCH.md §Code Examples (`_notes/error_with_adbc.md close-out
  header` block) with the placeholder commit SHAs replaced by the
  actual Plan 02 SHAs.
- All 8 acceptance grep checks pass.
- Original content preserved verbatim below the `---` divider with the
  `[original content below]` marker, as specified.

The plan's `must_haves.truths` are all satisfied:

- ✓ `_notes/error_with_adbc.md` retains its original downstream-reporter
  content for historical context (lines 16-43 verbatim from the prior file).
- ✓ The file now opens with a `## Resolution (v0.10.0)` header section
  of 2-3 sentences pointing at the Phase 66 fix and the regression guard.
- ✓ The resolution section references the commit(s) that landed Plan 02's
  migration (b55936f, b116553, 9fe1ae5).
- ✓ D-11 close-out shape applied; file is NOT archived to `_notes/archive/`.

The plan's `must_haves.key_links` are all satisfied:

- ✓ Link `from: _notes/error_with_adbc.md to: test/integration/test_adbc_queries.py
  via: "Inline mention of regression-guard test file path and `just test-adbc-queries`
  recipe"` — line 8 of the new section.
- ✓ Link `from: _notes/error_with_adbc.md to: src/expand/resolution.rs
  qualify_and_quote_table_ref via: "Mention of the helper that emits fully-qualified ..."`
  — line 4 of the new section.

## Auth Gates / Checkpoints

- Task 2 (`checkpoint:human-verify`) automation was performed by the
  executor in sequential-executor mode (matching Plan 02's precedent for
  the same gate type). `just test-all` exited 0; the captured log is at
  `/tmp/claude/test_all_phase66_final.log`. `just ci` is deferred to
  milestone-close pre-push per CLAUDE.md guidance.

## Known Stubs

None. The edit is a pure documentation prepend with no code, no
configuration, no test scaffolding, no placeholder values.

## Threat Flags

None. The edit is to a `_notes/` markdown file (historical context for
maintainers); no production code, no test code, no build wiring, no
configuration paths, no auth surface, no schema changes. Per RESEARCH.md
§Security Domain, the entire Phase 66 surface (including this plan) is
documentation-and-test-only with no new threat introduction.

## Forward-looking

Phase 66 is now complete across all three plans:

- **66-01**: ADBC test scaffolding with 7 scenarios (2 PASS / 5 SKIP at
  HEAD on Plan 01 alone, gated by `SKIP_UNTIL_PLAN_02`).
- **66-02**: 10 expand-path migration sites + DDL bug fixes + flag flip;
  ADBC 7/7 PASS post-Plan-02.
- **66-03**: `_notes/error_with_adbc.md` close-out note (this plan).

Milestone v0.10.0 next-step:

- Phase 66 verification dispatch (`/gsd-verify-work 66`) to confirm
  REQUIREMENTS.md row check-offs for EXPAND-CTX-01..03.
- Milestone close-out (separately, NOT in this phase per
  `feedback_defer_release_tasks.md`):
  - REL-01: CHANGELOG `## [0.10.0]` section + `[Unreleased]` reset +
    compare-link updates.
  - REL-02: `Cargo.toml` + `description.yml` bump to `0.10.0`.
  - REL-03: milestone example file under `examples/` demoing
    qualified-emission resilience under ADBC.
  - `just ci` pre-push.
  - Squash-merge `milestone/v0.10.0` to `main` + tag `v0.10.0` +
    `just clean-stale`.

Tracked-but-deferred (NOT this milestone):

- Multi-DB CREATE metadata capture bug (`database_name` records
  `current_database()` not the view's home DB) — surfaced during Plan
  02 scenario 7; STATE.md Phase 65 P04 entry already flags as Phase 67+
  territory. Not a regression introduced by Phase 66; pre-existing
  v0.9.0 + v0.10.0 limitation.

## Self-Check: PASSED

Files verified present:

- [x] `_notes/error_with_adbc.md` — modified, opens with `## Resolution (v0.10.0)` (line 1), original content preserved verbatim from line 16 onward

Commits verified in git log:

- [x] `200bca5 docs(66-03): close out EXPAND-CTX-03 with v0.10.0 resolution header`

Verification outcomes:

- [x] All 8 acceptance grep checks pass (see Task 1 verification table above).
- [x] `just test-all` exits RC=0 (`/tmp/claude/test_all_phase66_final.log`).
- [x] EXPAND-CTX-01: 17 `qualify_and_quote_table_ref` references across the 4 expand-path files (well above the floor of 10).
- [x] EXPAND-CTX-02: `test_adbc_queries.py` 7/7 PASS as part of `just test-all`.
- [x] EXPAND-CTX-03: `## Resolution (v0.10.0)` section present in `_notes/error_with_adbc.md`.
