{ "type": "record", "name": "DimAdnCampaign", "separatorChar": "\t", "fields": [ { "name": "campaign_id", "type": "string", "doc": "campaign id, from mysql primary key" }, { "name": "package_name", "type": "string", "doc": "package name" }, { "name": "platform", "type": "string", "doc": "platform" }, { "name": "app_name", "type": "string", "doc": "app name" }, { "name": "update_time", "type": "string", "doc": "update time: yyyy-MM-dd" } ] }