CREATE TABLE "billing_cycle_exchange_rates" ( "id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL, "cycle_id" uuid NOT NULL, "source_currency" text NOT NULL, "target_currency" text NOT NULL, "rate_micros" bigint NOT NULL, "effective_date" date NOT NULL, "source" text DEFAULT 'nbg' NOT NULL, "created_at" timestamp with time zone DEFAULT now() NOT NULL, "updated_at" timestamp with time zone DEFAULT now() NOT NULL ); --> statement-breakpoint ALTER TABLE "household_billing_settings" ADD COLUMN "settlement_currency" text DEFAULT 'GEL' NOT NULL;--> statement-breakpoint ALTER TABLE "billing_cycle_exchange_rates" ADD CONSTRAINT "billing_cycle_exchange_rates_cycle_id_billing_cycles_id_fk" FOREIGN KEY ("cycle_id") REFERENCES "public"."billing_cycles"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint CREATE UNIQUE INDEX "billing_cycle_exchange_rates_cycle_pair_unique" ON "billing_cycle_exchange_rates" USING btree ("cycle_id","source_currency","target_currency");--> statement-breakpoint CREATE INDEX "billing_cycle_exchange_rates_cycle_idx" ON "billing_cycle_exchange_rates" USING btree ("cycle_id");