关系 "sde_table_registry_ext" 不存在

如果 `sde_table_registry_ext` 表不存在，可以通过以下 SQL 语句创建该表：

CREATE TABLE sde_table_registry_ext
(
    registration_id integer NOT NULL,
    table_name character varying(64) NOT NULL,
    owner character varying(64) NOT NULL,
    description character varying(160) NOT NULL,
    column_name character varying(64) NOT NULL,
    type character varying(20) NOT NULL,
    is_nullable character varying(3) NOT NULL,
    default_value character varying(160),
    min_value double precision,
    max_value double precision,
    constraint_name character varying(64),
    has_index character varying(3),
    is_spatial character varying(3),
    alias character varying(160),
    model_name character varying(160),
    owner_type character varying(8),
    creator character varying(64),
    created_date timestamp,
    last_modifier character varying(64),
    last_modified_date timestamp,
    is_versioned character varying(3),
    version_column character varying(64),
    version_column_type character varying(12),
    default_version character varying(64),
    state_id integer,
    state_date timestamp,
    state_user character varying(64),
    allowed_states character varying(160),
    dataset_id character varying(64),
    dataset_info character varying(160),
    CONSTRAINT sde_table_registry_ext_pkey PRIMARY KEY (registration_id)
);

创建完 `sde_table_registry_ext` 表后，可以使用之前提到的 SQL 语句来修改数据别名。