| 123456789101112131415161718 | 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;
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