alter table wvp_device_channel add stream_identification character varying(50); alter table wvp_device drop switch_primary_sub_stream; # 第一个补丁包 alter table wvp_platform add send_stream_ip character varying(50); alter table wvp_device change on_line on_line bool default false; alter table wvp_device change id id serial primary key; alter table wvp_device change ssrc_check ssrc_check bool default false;