CREATE TABLE "upload" ( "id" text PRIMARY KEY, "original_name" text NOT NULL, "oss_key" text NOT NULL UNIQUE, "url" text NOT NULL, "mime_type" text NOT NULL, "size" integer NOT NULL, "bucket" text NOT NULL, "user_id" text, "created_at" timestamp with time zone DEFAULT now() NOT NULL ); --> statement-breakpoint ALTER TABLE "upload" ADD CONSTRAINT "upload_user_id_user_id_fkey" FOREIGN KEY ("user_id") REFERENCES "user"("id") ON DELETE SET NULL;