- sql/01_sync_queue.sql: idempotent DDL for dbo.SyncQueue (PK + unique
dedup index + pending lookup index), safe to re-run.
- sql/02_sync_apply.sql: dbo.usp_SyncApply (@MaxRetries INT=5). Per
distinct (TargetSchema,TargetTable) it builds column projections from
sys.columns (excludes ID key/computed/identity/rowversion) and runs a
dynamic-SQL MERGE (last-write-wins via ROW_NUMBER over SourceLogID DESC)
for Insert/Update plus a DELETE for the last op = Delete.
SET IDENTITY_INSERT ON preserves Access PKs.
- tests/conftest.py: sql_conn fixture reads conn_str from gitignored
config.yaml via load_config; skipped without RUN_INTEGRATION=1.
- tests/test_apply_proc.py: integration test covering IDENTITY-preserving
INSERT, last-write-wins UPDATE, BIT conversion, and DELETE; cleans up.
Deviation from the brief's procedure (root-cause fix, design preserved):
every JSON path key is quoted ('$."col"') so non-ASCII column names
(e.g. Chinese 名字/数量) parse correctly. Without quoting, JSON_VALUE
raises "JSON path format is not correct" on Chinese columns, which is the
real target schema for this Access->SQL Server sync.
Co-Authored-By: Claude <noreply@anthropic.com>
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