---
phase: 22-documentation
verified: 2026-03-09T14:30:00Z
status: passed
score: 5/5 must-haves verified
re_verification: false
---

# Phase 22: Documentation Verification Report

**Phase Goal:** Users can learn the full DDL syntax from the README without reading source code
**Verified:** 2026-03-09T14:30:00Z
**Status:** PASSED
**Re-verification:** No — initial verification

## Goal Achievement

### Observable Truths

| #   | Truth                                                                                         | Status     | Evidence                                                                                    |
| --- | --------------------------------------------------------------------------------------------- | ---------- | ------------------------------------------------------------------------------------------- |
| 1   | README shows native DDL syntax (CREATE SEMANTIC VIEW) as the primary interface               | VERIFIED   | Lines 42-54 (single table), 59-76 (multi-table) lead the "Defining" section; no function calls in main flow |
| 2   | All 7 DDL verbs appear with examples: CREATE, CREATE OR REPLACE, CREATE IF NOT EXISTS, DROP, DROP IF EXISTS, DESCRIBE, SHOW | VERIFIED   | DDL reference section (lines 114-121) has all 7; CREATE also appears in worked examples    |
| 3   | A lifecycle worked example demonstrates create → query → describe → drop                    | VERIFIED   | Lines 127-146: CREATE + SELECT semantic_view() + DESCRIBE + SHOW SEMANTIC VIEWS + DROP      |
| 4   | Version string is updated from v0.4.0 to v0.5.0                                             | VERIFIED   | Line 7: `v0.5.0 -- early-stage, not yet on the community registry.`                        |
| 5   | Function-based syntax is retained as a documented alternative                                | VERIFIED   | Lines 162-168: "Function syntax" section lists all 7 function names for backward compat    |

**Score:** 5/5 truths verified

### Required Artifacts

| Artifact    | Expected                              | Status     | Details                                                                                  |
| ----------- | ------------------------------------- | ---------- | ---------------------------------------------------------------------------------------- |
| `README.md` | DDL syntax reference with worked examples | VERIFIED | 187 lines (under 200 limit), contains `CREATE SEMANTIC VIEW`, all 7 DDL verbs, lifecycle example |

### Key Link Verification

| From                     | To                                         | Via                  | Status   | Details                                                                                                                                   |
| ------------------------ | ------------------------------------------ | -------------------- | -------- | ----------------------------------------------------------------------------------------------------------------------------------------- |
| README.md DDL examples   | test/sql/phase20_extended_ddl.test         | syntax consistency   | VERIFIED | All struct field names match exactly: `alias`, `table`, `name`, `expr`, `source_table`, `from_table`, `to_table`, `join_columns`, `from`, `to` |

### Requirements Coverage

| Requirement | Source Plan  | Description                                       | Status    | Evidence                                                                           |
| ----------- | ------------ | ------------------------------------------------- | --------- | ---------------------------------------------------------------------------------- |
| DOC-01      | 22-01-PLAN.md | README includes DDL syntax reference with worked examples | SATISFIED | DDL reference section (lines 112-121) + lifecycle example (lines 123-146) present |

No orphaned requirements: REQUIREMENTS.md maps only DOC-01 to Phase 22, and the plan claims DOC-01.

### Anti-Patterns Found

None detected.

Scanned README.md for: TODO/FIXME/placeholder comments, empty implementations, console.log stubs, stale function-based DDL in main flow. All clear.

### Test Suite Results

The full `just test-all` was executed as required by CLAUDE.md quality gate:

| Suite                        | Result        | Count                          |
| ---------------------------- | ------------- | ------------------------------ |
| Rust unit + property tests   | PASSED        | 209/209 tests                  |
| SQL logic tests (sqllogictest) | PASSED      | 7/7 test files (including phase20_extended_ddl.test, phase16_parser.test) |
| DuckLake CI integration tests | PASSED       | 6/6 tests                      |

### Human Verification Required

None. All checks are programmatically verifiable for a documentation-only change.

The README content itself is prose and code that can be cross-checked against the test files, which was done above. No visual rendering or interactive behavior is involved.

### Gaps Summary

No gaps. All 5 observable truths verified, single artifact verified at all three levels (exists, substantive, wired), key link confirmed, DOC-01 requirement satisfied, full test suite green.

---

_Verified: 2026-03-09T14:30:00Z_
_Verifier: Claude (gsd-verifier)_
