CREATE TABLE IF NOT EXISTS "chats" (
	"id" text PRIMARY KEY NOT NULL,
	"role" text NOT NULL,
	"userId" text NOT NULL
);

DO $$ BEGIN
 ALTER TABLE "chats" ADD CONSTRAINT "chats_userId_users_id_fk" FOREIGN KEY ("userId") REFERENCES "users"("id") ON DELETE no action ON UPDATE no action;
EXCEPTION
 WHEN duplicate_object THEN null;
END $$;