例子如下

CREATE TABLE "public"."sys_role" (
  "id" int8 NOT NULL,
  "role_name" varchar(64) COLLATE "pg_catalog"."default" NOT NULL,
  "create_time" timestamp(6) NOT NULL DEFAULT CURRENT_TIMESTAMP,
  "role_code" varchar(32) COLLATE "pg_catalog"."default",
  "remark" varchar(64) COLLATE "pg_catalog"."default",
  CONSTRAINT "sys_role_pkey" PRIMARY KEY ("id")
)
;