data/sql/90_user_weight_profiles.sql

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+-- 90_user_weight_profiles.sql
+-- User-defined POI weight profiles для site_finder/analyze_parcel.
+-- Per #114 (Макс feedback): разные веса для разных категорий (садики ≠ Мегамарт).
+--
+-- Apply order: после 89_drop_dead_brin_rosreestr_deals.sql
+-- Dependencies: нет (standalone table, no FK to other tables)
+--
+-- POI categories compatible with _POI_WEIGHTS in backend/app/api/v1/parcels.py:
+--   school, kindergarten, pharmacy, hospital, shop_mall, shop_supermarket,
+--   shop_small, park, bus_stop, metro_stop, tram_stop
+--
+-- Idempotent: safe to run multiple times.
+
+BEGIN;
+
+CREATE TABLE IF NOT EXISTS user_weight_profiles (
+    id           SERIAL PRIMARY KEY,
+    user_id      TEXT NOT NULL,  -- пока admin token / простой ID; auth в Sprint 5
+    profile_name TEXT NOT NULL,
+    weights      JSONB NOT NULL DEFAULT '{}'::jsonb,
+    is_default   BOOLEAN NOT NULL DEFAULT FALSE,
+    description  TEXT,
+    created_at   TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_at   TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    UNIQUE (user_id, profile_name)
+);
+
+CREATE INDEX IF NOT EXISTS user_weight_profiles_user_idx
+    ON user_weight_profiles (user_id);
+
+-- Partial index для быстрого fetch default profile per user
+CREATE INDEX IF NOT EXISTS user_weight_profiles_default_idx
+    ON user_weight_profiles (user_id) WHERE is_default = TRUE;
+
+-- Trigger function для auto-update updated_at (shared, reusable across tables)
+CREATE OR REPLACE FUNCTION set_updated_at() RETURNS TRIGGER AS $$
+BEGIN
+    NEW.updated_at = NOW();
+    RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
+
+-- Drop trigger если ранее существовал (idempotent)
+DROP TRIGGER IF EXISTS user_weight_profiles_updated_at ON user_weight_profiles;
+CREATE TRIGGER user_weight_profiles_updated_at
+    BEFORE UPDATE ON user_weight_profiles
+    FOR EACH ROW EXECUTE FUNCTION set_updated_at();
+
+COMMENT ON TABLE user_weight_profiles IS
+    'POI weight profiles для site_finder. Per #114 (Макс feedback). '
+    'weights = {"school": 1.5, "kindergarten": 1.5, "shop_mall": 1.2, ...}';
+
+COMMENT ON COLUMN user_weight_profiles.weights IS
+    'JSONB map: poi_category → weight (float, typically -1.5..2.5). '
+    'Совместимо с _POI_WEIGHTS default в backend/app/api/v1/parcels.py. '
+    'Категории: school, kindergarten, pharmacy, hospital, shop_mall, '
+    'shop_supermarket, shop_small, park, bus_stop, metro_stop, tram_stop.';
+
+COMMENT ON COLUMN user_weight_profiles.user_id IS
+    'Простой строковый ID пользователя. Full auth integration — Sprint 5.';
+
+COMMENT ON COLUMN user_weight_profiles.is_default IS
+    'TRUE = профиль используется по умолчанию для этого user_id. '
+    'Partial index user_weight_profiles_default_idx ускоряет lookup.';
+
+COMMIT;