Files
paliad/internal/db/migrations/156_trigger_event_id_partial_deprecation.down.sql
mAi d6a5dedb2b feat(deadline-system): P4 (partial) — partial trigger_events deprecation (m/paliad#149)
Phase 2 P4 partial-scope (head approved 2026-05-27 15:24). The full
drop of paliad.trigger_events + the legacy route + 5 read sites is
gated on an editorial backfill that's not in coder scope — 73 active
sequencing_rules carry proceeding_type_id IS NULL and are addressed
ONLY via trigger_event_id today. Dropping anything would break those
73 orphans.

What this lands:

  1. Mig 156 — NULL out trigger_event_id on the 2 hybrid rules that
     carry BOTH parent_id AND trigger_event_id. Per design §2.1 /
     m's Q1, parent_id is the canonical predecessor link; the
     hybrid trigger_event_id was redundant. The 2 rules' parent_id
     chains keep the live edge. Live-DB verified post-apply: 0
     active hybrid rules remain.

  2. Deprecation + Link headers on POST /api/tools/event-deadlines
     per RFC 8594 / RFC 9745. The route stays functional so the 73
     orphans keep working until reparenting lands.

What this does NOT land (gated on editorial):

  - DROP TABLE paliad.trigger_events
  - DROP COLUMN paliad.sequencing_rules.trigger_event_id
  - Remove the legacy /api/tools/event-deadlines handler
  - Remove EventDeadlineService + ExportService::1680 sheet
  - Remove deadline_rule_service.go:226 label-fallback path
  - Remove event_type_service.go:40+414 reads (33 event_types still
    reference trigger_event_id)
  - Update cmd/gen-upc-snapshot/main.go:185-202 to skip trigger_events
  - Drop the sequencing_rules_trigger_event_id_fkey FK

All of the above lands in a follow-up mig once the orphan count
hits zero. Comment to follow on m/paliad#149 with the editorial-
backlog list.

Verified: live-DB pre/post hybrid count (0 active hybrids remain);
mig idempotent; go vet clean.

Design: docs/design-deadline-system-revision-2026-05-27.md §2.1
(parent_id canonical), §3.4 (legacy route fate), §4.3 (table fate),
§5 (slice train P5 row). t-paliad-331.
2026-05-27 15:25:53 +02:00

22 lines
569 B
PL/PgSQL

-- 156_trigger_event_id_partial_deprecation.down — t-paliad-331 / m/paliad#149
BEGIN;
SELECT set_config(
'paliad.audit_reason',
'mig 156 down: restore trigger_event_id on the 2 hybrid rules',
true
);
-- Restore the trigger_event_id values from the same-TX snapshot.
UPDATE paliad.sequencing_rules sr
SET trigger_event_id = pre.trigger_event_id
FROM paliad.sequencing_rules_pre_156 pre
WHERE sr.id = pre.id
AND sr.trigger_event_id IS NULL
AND pre.trigger_event_id IS NOT NULL;
DROP TABLE IF EXISTS paliad.sequencing_rules_pre_156;
COMMIT;