first

backend/migrations/000008_create_price_tiers.up.sql

@@ -0,0 +1,12 @@
+CREATE TABLE price_tiers (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    product_id UUID NOT NULL REFERENCES products(id) ON DELETE CASCADE,
+    unit_id UUID NOT NULL REFERENCES units(id) ON DELETE RESTRICT,
+    quantity NUMERIC(14, 3) NOT NULL CHECK (quantity > 0),
+    price_cents BIGINT NOT NULL CHECK (price_cents >= 0),
+    position INT NOT NULL DEFAULT 0,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
+);
+
+CREATE INDEX idx_price_tiers_product_id ON price_tiers(product_id);