嗨，我有一个带有结构数组的 avro 模式，我能够将数据保存为 avro。但是在从中检索数据时
array<struct<string, string>>
我无法排成一行。我在单行中获得的所有数据。
这是表定义
CREATE EXTERNAL TABLE meterevents ROW FORMAT SERDE org.apache.hadoop.hive.serde2.avro.AvroSerDe' STORED as INPUTFORMAT org.apache.hadoop.hive.ql.io.avro.AvroContainerInputFormat' OUTPUTFORMAT 'org.apache.hadoop.hive.ql.io.avro.AvroContainerOutputFormat' LOCATION '/......' TBLPROPERTIES ('avro.schema.url'='/..../schema.avsc');蜂巢表结构
nametype struct<nametypedescription:string,nametypename:string,nametypeauthority:struct<nametypeauthorityname:string,nametypeauthoritydescription:string>> from deserializer
names struct<name:string,nametype:struct<nametypedescription:string,nametypename:string,nametypeauthority:struct<nametypeauthorityname:string,nametypeauthoritydescription:string>>> from deserializer
enddeviceeventdetails struct<enddeviceeventdetailsname:string,enddeviceeventdetailsvalue:string> from deserializer
enddeviceevent struct<mrid:string,createddatetime:string,issuerid:string,issuertrackingid:string,reason:string,severity:string,userid:string,asset:struct<assetmrid:string,assetnames:array<struct<name:string,nametype:struct<nametypedescription:string,nametypename:string,nametypeauthority:struct<nametypeauthorityname:string,nametypeauthoritydescription:string>>>>>,enddeviceeventdetails:array<struct<enddeviceeventdetailsname:string,enddeviceeventdetailsvalue:string>>,enddeviceeventtype:string,enddeviceeventnames:array<struct<name:string,nametype:struct<nametypedescription:string,nametypename:string,nametypeauthority:struct<nametypeauthorityname:string,nametypeauthoritydescription:string>>>>,status:struct<statusdatetime:string,statusreason:string,statusremark:string,statusvalue:string>,usagepoint:struct<usagepointmrid:string,usagepointnames:array<struct<name:string,nametype:struct<nametypedescription:string,nametypename:string,nametypeauthority:struct<nametypeauthorityname:string,nametypeauthoritydescription:string>>>>>> from deserializer
enddeviceeventtype struct<enddeviceeventtypemrid:string,enddeviceeventtypedomain:string,enddeviceeventtypeeventoraction:string,enddeviceeventtypesubdomain:string,type:string,enddeviceeventtypenames:array<struct<name:string,nametype:struct<nametypedescription:string,nametypename:string,nametypeauthority:struct<nametypeauthorityname:string,nametypeauthoritydescription:string>>>>> from deserializer
header struct<noun:string,context:string,verb:string,value:string,source:string,timestamp:string,correlationid:string,name:string,messageid:string,property:struct<propertyname:array<string>,propertyvalue:array<string>>> from deserializer
payload struct<enddeviceevents:array<struct<mrid:string,createddatetime:string,issuerid:string,issuertrackingid:string,reason:string,severity:string,userid:string,asset:struct<assetmrid:string,assetnames:array<struct<name:string,nametype:struct<nametypedescription:string,nametypename:string,nametypeauthority:struct<nametypeauthorityname:string,nametypeauthoritydescription:string>>>>>,enddeviceeventdetails:array<struct<enddeviceeventdetailsname:string,enddeviceeventdetailsvalue:string>>,enddeviceeventtype:string,enddeviceeventnames:array<struct<name:string,nametype:struct<nametypedescription:string,nametypename:string,nametypeauthority:struct<nametypeauthorityname:string,nametypeauthoritydescription:string>>>>,status:struct<statusdatetime:string,statusreason:string,statusremark:string,statusvalue:string>,usagepoint:struct<usagepointmrid:string,usagepointnames:array<struct<name:string,nametype:struct<nametypedescription:string,nametypename:string,nametypeauthority:struct<nametypeauthorityname:string,nametypeauthoritydescription:string>>>>>>>,enddeviceeventtype:array<struct<enddeviceeventtypemrid:string,enddeviceeventtypedomain:string,enddeviceeventtypeeventoraction:string,enddeviceeventtypesubdomain:string,type:string,enddeviceeventtypenames:array<struct<name:string,nametype:struct<nametypedescription:string,nametypename:string,nametypeauthority:struct<nametypeauthorityname:string,nametypeauthoritydescription:string>>>>>>>我在查询中使用“LATERAL VIEW explode”选项
select eddetails.enddeviceeventdetailsname, eddetails.enddeviceeventdetailsvalue
FROM meterevents_tmp
LATERAL VIEW explode(payload.enddeviceevents.enddeviceeventdetails) ed AS eddetails
limit 1;但我仍然在单行中获取数据。
enddeviceeventdetailsname enddeviceeventdetailsvalue
["EventSequenceNumber","EventSequenceNumber","EventSequenceNumber","EventSequenceNumber"] ["683","684","685","686"我想将这些数据作为
enddeviceeventdetailsname enddeviceeventdetailsvalue
EventSequenceNumber 683
EventSequenceNumber 684
EventSequenceNumber 685
EventSequenceNumber 686我已经阅读了关于 stackoverflow 的另一个问题：Exploding Array of Struct using HiveQL
但无法获得预期的输出。因为在那篇文章中它的配置单元外部表而不是我无法指定“MAP KEYS TERMINATED BY”和“COLLECTION ITEMS TERMINATED BY”的 serde
任何帮助深表感谢。
谢谢