{ "type": "record", "name": "Campaign", "separatorChar": "\t", "fields": [ { "name": "campaign_id", "type": "string", "doc": "campaign id, from mysql primary key" }, { "name": "app_name", "type": "string", "doc": "app name" }, { "name": "platform", "type": "string", "doc": "ios or adr" }, { "name": "package_name", "type": "string", "doc": "package name" }, { "name": "category", "type": "string", "doc": "category" }, { "name": "sub_category", "type": "string", "doc": "sub mvFirstCategory" }, { "name": "status", "type": "int", "doc": "the same meaning as in mysql" }, { "name": "update_time", "type": "string", "doc": "更新时间" } ] }