Survey of all 17 backend Drizzle schemas (mana-mail/-media/-auth/
-analytics/-research/-events/-subscriptions/-credits + apps/api/
{unlisted,website,traces,presi,todo}):
- 3 columns are actively read by service code:
- research.providerConfigs.updatedAt — explicit write + DTO field
- unlisted.snapshots.updatedAt — read in public response
- website.customDomains.updatedAt — read in DNS-status response
- 14 columns are AUTO-ONLY: Drizzle stamps them via defaultNow() /
$onUpdate(), no service code reads them.
But the AUTO-ONLY columns are NOT sync-orphans — they're standard
Drizzle audit-timestamp convention, useful for Postgres-level forensics
(`ORDER BY updated_at DESC` to find recently-modified rows during
debugging). F3's plan note ("pure server-internal columns, not touched")
correctly identified them. No cleanup is needed.
Closing the audit item with rationale documented in
docs/plans/sync-field-meta-overhaul.md and DATA_LAYER_AUDIT.md.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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