| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475 | alter table wvp_device_channel    drop column custom_name;alter table wvp_device_channel    drop column channel_id;alter table wvp_device_channel    drop column custom_longitude;alter table wvp_device_channel    drop column custom_latitude;alter table wvp_device_channel    drop column custom_ptz_type;alter table wvp_device_channel    drop column longitude_gcj02;alter table wvp_device_channel    drop column latitude_gcj02;alter table wvp_device_channel    drop column longitude_wgs84;alter table wvp_device_channel    drop column latitude_wgs84;alter table wvp_device_channel    rename column manufacture to manufacturer;alter table wvp_device_channel    modify column parental integer;alter table wvp_device_channel    modify column secrecy integer;alter table wvp_device_channel    modify column status character varying(50);alter table wvp_device_channel    modify column device_id character varying(50);alter table wvp_device_channel    add position_type integer;alter table wvp_device_channel    add room_type integer;alter table wvp_device_channel    add use_type integer;alter table wvp_device_channel    add supply_light_type integer;alter table wvp_device_channel    add direction_type integer;alter table wvp_device_channel    add resolution character varying(255);alter table wvp_device_channel    modify column business_group_id character varying(255);alter table wvp_device_channel    add download_speed character varying(255);alter table wvp_device_channel    add svc_space_support_mod integer;alter table wvp_device_channel    add svc_time_support_mode integer;alter table wvp_device_channel    add device_db_id integer;
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