{
"type": "record",
"name": "Campaign",
"separatorChar": "\t",
"fields": [
{
"name": "campaign_id",
"type": "string",
"doc": "campaign id, from mysql primary key"
},
{
"name": "platform",
"type": "string",
"doc": "ios or adr"
},
{
"name": "package_name",
"type": "string",
"doc": "package name"
}
]
}