text: -- 上传文件表
  CREATE TABLE ${SCHEMA}.upload_file (
      uuid varchar(32) NOT NULL,
      tenant_id            bigint        not null default 0,
      rel_obj_type varchar(50),
      rel_obj_id varchar(32),
      rel_obj_field varchar(50),
      file_name varchar(100) NOT NULL,
      storage_path varchar(200) NOT NULL,
      access_url varchar(200) NULL,
      file_type varchar(20),
      data_count int  not null DEFAULT 0,
      description varchar(100),
      is_deleted tinyint not null DEFAULT 0,
      create_time datetime not null default CURRENT_TIMESTAMP,
      constraint PK_upload_file primary key (uuid)
  );
  -- 添加备注,
  execute sp_addextendedproperty 'MS_Description', N'UUID', 'SCHEMA', '${SCHEMA}', 'table', upload_file, 'column', 'uuid';
  execute sp_addextendedproperty 'MS_Description', N'租户ID','SCHEMA', '${SCHEMA}', 'table', upload_file, 'column', 'tenant_id';
  execute sp_addextendedproperty 'MS_Description', N'关联对象类', 'SCHEMA', '${SCHEMA}', 'table', upload_file, 'column', 'rel_obj_type';
  execute sp_addextendedproperty 'MS_Description', N'关联对象ID', 'SCHEMA', '${SCHEMA}', 'table', upload_file, 'column', 'rel_obj_id';
  execute sp_addextendedproperty 'MS_Description', N'关联对象属性名称', 'SCHEMA', '${SCHEMA}', 'table', upload_file, 'column', 'rel_obj_field';
  execute sp_addextendedproperty 'MS_Description', N'文件名', 'SCHEMA', '${SCHEMA}', 'table', upload_file, 'column', 'file_name';
  execute sp_addextendedproperty 'MS_Description', N'存储路径', 'SCHEMA', '${SCHEMA}', 'table', upload_file, 'column', 'storage_path';
  execute sp_addextendedproperty 'MS_Description', N'访问地址', 'SCHEMA', '${SCHEMA}', 'table', upload_file, 'column', 'access_url';
  execute sp_addextendedproperty 'MS_Description', N'文件类型', 'SCHEMA', '${SCHEMA}', 'table', upload_file, 'column', 'file_type';
  execute sp_addextendedproperty 'MS_Description', N'数据量', 'SCHEMA', '${SCHEMA}', 'table', upload_file, 'column', 'data_count';
  execute sp_addextendedproperty 'MS_Description', N'备注', 'SCHEMA', '${SCHEMA}', 'table', upload_file, 'column', 'description';
  execute sp_addextendedproperty 'MS_Description', N'删除标记', 'SCHEMA', '${SCHEMA}', 'table', upload_file, 'column', 'is_deleted';
  execute sp_addextendedproperty 'MS_Description', N'创建时间', 'SCHEMA', '${SCHEMA}', 'table', upload_file, 'column', 'create_time';
  execute sp_addextendedproperty 'MS_Description', N'上传文件', 'SCHEMA', '${SCHEMA}', 'table', upload_file, null, null;
  -- 索引
  create nonclustered index idx_upload_file on upload_file(rel_obj_type, rel_obj_id, rel_obj_field);
  create nonclustered index idx_upload_file_tenant on ${SCHEMA}.upload_file(tenant_id);
  