Question

我添加了cloudera的jar文件添加JAR hive-serdes-1.0-SNAPSHOT。

示例数据

{
    "_id" : "0000540a-e28c-44e3-a2bf-d579af4d43f4",
    "CreatedDate" : ISODate("2014-12-22T18:22:30.250Z"),
    "UpdatedDate" : ISODate("2015-02-12T04:23:53.326Z"),
    "AccountId" : "73f98922-c1a9-4fd9-bcbf-bcb24ea50009",
    "Url" : "https://mail.google.com/mail/u/1/#search/paul+roberts",
    "Host" : "mail.google.com",
    "VisitTime" : ISODate("2014-12-22T17:59:51.225Z"),
    "Transition" : "link",
    "LifeTime" : 3267.0000000000000000,
    "Status" : "closed",
    "LocalTime" : ISODate("2014-12-22T17:59:51.225Z"),
    "referrer" : "",
    "tabId" : "409",
    "SiteType" : "Mail"
}

我创建了表格 创建外部表pof.TestForJson（id字符串，CreatedDate STRUCT，UpdatedDate STRUCT，AccountId字符串，Url字符串，主机字符串，VisitTime STRUCT，转换字符串，LifeTime字符串，状态字符串，LocalTime STRUCT，DeviceId字符串，SubSiteType字符串，SiteType字符串，标志字符串）行格式serde＆＃39; com.cloudera.hive.serde.JSONSerDe＆＃39; 与

serdeproperties("id"="_id" , "CreatedDate.date"="$.date" , "UpdatedDate.date"="$.date" , "VisitTime.date"="$.date" , "LocalTime.date"="$.date") location '/user/hive/warehouse/pof.db/testdata';

当我运行select query时得到null值。

请帮忙！

在json serde中选择查询返回json文件

0 个答案: