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migrations/000001_initial_schema.down.sql

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+-- ============================================================================
+-- Krow — initial schema, reversed.
+--
+-- Drops exactly what 000001_initial_schema.up.sql created, in reverse
+-- dependency order, and nothing else. Every DROP is qualified to `public` and
+-- named explicitly — there is no CASCADE on a schema, no DROP SCHEMA, and no
+-- DROP DATABASE anywhere in this file.
+-- ============================================================================
+
+SET search_path = public;
+
+-- Tables, children before parents. Indexes and table-level constraints are
+-- dropped implicitly with their table.
+DROP TABLE IF EXISTS public.user_activity;
+DROP TABLE IF EXISTS public.evidence;
+DROP TABLE IF EXISTS public.shift_records;
+DROP TABLE IF EXISTS public.assignments;
+DROP TABLE IF EXISTS public.staff;
+DROP TABLE IF EXISTS public.ai_interviews;
+DROP TABLE IF EXISTS public.job_applications;
+DROP TABLE IF EXISTS public.worker_profiles;
+DROP TABLE IF EXISTS public.job_postings;
+DROP TABLE IF EXISTS public.learning_paths;
+DROP TABLE IF EXISTS public.courses;
+DROP TABLE IF EXISTS public.badges;
+DROP TABLE IF EXISTS public.certifications;
+DROP TABLE IF EXISTS public.role_categories;
+DROP TABLE IF EXISTS public.user_preferences;
+DROP TABLE IF EXISTS public.users;
+DROP TABLE IF EXISTS public.organizations;
+
+-- Enums, after every table that referenced them is gone.
+DROP TYPE IF EXISTS public.badge_verification;
+DROP TYPE IF EXISTS public.badge_level;
+DROP TYPE IF EXISTS public.evidence_verdict;
+DROP TYPE IF EXISTS public.challenge_type;
+DROP TYPE IF EXISTS public.skill_level;
+DROP TYPE IF EXISTS public.course_status;
+DROP TYPE IF EXISTS public.shift_status;
+DROP TYPE IF EXISTS public.assignment_status;
+DROP TYPE IF EXISTS public.profile_tier;
+DROP TYPE IF EXISTS public.staff_status;
+DROP TYPE IF EXISTS public.interview_verdict;
+DROP TYPE IF EXISTS public.application_status;
+DROP TYPE IF EXISTS public.english_level;
+DROP TYPE IF EXISTS public.posting_priority;
+DROP TYPE IF EXISTS public.posting_status;
+
+-- The citext extension is deliberately NOT dropped.
+--
+-- CREATE EXTENSION IF NOT EXISTS is a no-op when the extension already exists,
+-- so the up migration cannot tell whether it created citext or inherited it.
+-- Dropping it on the way down would therefore risk removing an object this
+-- migration never owned, and would break any other schema that has since
+-- adopted the type. Leaving it is harmless: it holds no data, and re-applying
+-- the up migration is unaffected.
+--
+-- To remove it by hand on a database where nothing else uses it:
+--   DROP EXTENSION IF EXISTS citext;