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				@@ -158,7 +158,6 @@ create table wvp_device_channel 
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				     gb_certifiable               integer, 
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				     gb_err_code                  integer, 
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				     gb_end_time                  character varying(50), 
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				-    gb_security_level_code       character varying(255), 
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				     gb_secrecy                   integer, 
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				     gb_ip_address                character varying(50), 
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				     gb_port                      integer, 
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				@@ -169,33 +168,14 @@ create table wvp_device_channel 
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				     gb_business_group_id         character varying(50), 
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				     gb_ptz_type                  integer, 
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				     gb_position_type             integer, 
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				-    gb_photoelectric_imaging_type integer, 
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				-    gb_capture_position_type     integer, 
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				     gb_room_type                 integer, 
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				     gb_use_type                  integer, 
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				     gb_supply_light_type         integer, 
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				     gb_direction_type            integer, 
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				     gb_resolution                character varying(255), 
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				-    gb_stream_number_list        character varying(255), 
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				     gb_download_speed            character varying(255), 
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				     gb_svc_space_support_mod     integer, 
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				     gb_svc_time_support_mode     integer, 
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				-    gb_ssvc_ratio_support_list   character varying(255), 
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				-    gb_mobile_device_type        integer, 
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				-    gb_horizontal_field_angle    double precision, 
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				-    gb_vertical_field_angle      double precision, 
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				-    gb_max_view_distance         double precision, 
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				-    gb_grassroots_code           character varying(255), 
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				-    gb_po_type                   integer, 
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				-    gb_po_common_name            character varying(255), 
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				-    gb_mac                       character varying(255), 
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				-    gb_function_type             character varying(255), 
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				-    gb_encode_type               character varying(255), 
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				-    gb_install_time              character varying(255), 
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				-    gb_management_unit           character varying(255), 
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				-    gb_contact_info              character varying(255), 
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				-    gb_record_save_days          integer, 
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				-    gb_industrial_classification character varying(255), 
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				     stream_push_id               integer, 
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				     stream_proxy_id              integer, 
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				     constraint uk_wvp_device_channel_unique_device_channel unique (device_db_id, device_id), 
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				@@ -204,6 +184,8 @@ create table wvp_device_channel 
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				     constraint uk_wvp_unique_stream_proxy_id unique (stream_proxy_id) 
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				 ); 
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				+ 
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				+ 
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				 create table wvp_media_server 
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				 ( 
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				     id                  character varying(255) primary key, 
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