我有一个如下所示的json数据集:
{
"eventType": "Send",
"mail": {
[{
"name": "From",
"value": "youraddress@example.com"
}, {
"name": "To",
"value": "success@simulator.amazonses.com"
}, {
"name": "Subject",
"value": "Bounced Like a Bad Check"
},
...
{
"name": "nameN",
"value": "N"
}
]
}
我正在尝试使用AWS Athena(下面是Presto)编写查询来提取以下值:
eventType, name1,name2,name3, ... nameN
Send, From, To, Subject, ...., nameN
我正在努力提取这个嵌套的json。