错误嵌套JSON在蜂巢

-2

{ 
    "id": "0001", 
    "type": "donut", 
    "name": "Cake", 
    "ppu": 0.55, 
    "batters": 
     { 
      "batter": 
       [ 
        { "id": "1001", "type": "Regular" }, 
        { "id": "1002", "type": "Chocolate" }, 
        { "id": "1003", "type": "Blueberry" }, 
        { "id": "1004", "type": "Devil's Food" } 
       ] 
     }, 
    "topping": 
     [ 
      { "id": "5001", "type": "None" }, 
      { "id": "5002", "type": "Glazed" }, 
      { "id": "5005", "type": "Sugar" }, 
      { "id": "5007", "type": "Powdered Sugar" }, 
      { "id": "5006", "type": "Chocolate with Sprinkles" }, 
      { "id": "5003", "type": "Chocolate" }, 
      { "id": "5004", "type": "Maple" } 
     ] 
}

加载该JSON数据命令

ADD JAR /home/cloudera/Downloads/json-serde-1.3.6-SNAPSHOT-jar-with-dependencies.jar; 

CREATE EXTERNAL TABLE format.json_serde (
    `id` string, 
    `type` string, 
    `name` string, 
`ppu` float,  
    batters` struct < `batter`:array < struct <`bid`:string, `btype`:string >>>, 
    `topping`:array < struct<`tid`:int, `ttype`:string>> 
) 
ROW FORMAT SERDE 'org.openx.data.jsonserde.JsonSerDe';

抛出我的错误

FAILED: ParseException line 7:11 cannot recognize input near ':' 'array' '<' in column type </b>

来源

2017-04-26 abhijeet sarkar

你有错别字
ttype`：串应Af - Ag型：串
battersstruct应打者结构
摘心：阵列应摘心阵列
JSON SERDE映射是由名字来完成。
您的结构字段名称应与实际名称匹配，例如id而不是bid或tid，否则您将为这些字段获得NULL值。
已经有一个JSON SerDe，它是Hive安装的一部分。 https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DDL#LanguageManualDDL-RowFormats&SerDe

create external table json_serde 
( 
    id  string 
    ,type string 
    ,name string 
    ,ppu  float 
    ,batters struct<batter:array<struct<id:string,type:string>>> 
    ,topping array<struct<id:string,type:string>> 
) 
row format serde 
'org.apache.hive.hcatalog.data.JsonSerDe' 
stored as textfile 
;

select * from json_serde 
;

+------+-------+------+-------------------+--------------------------------------------------------------------------------------------------------------------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ 
| id | type | name |  ppu  |                  batters                  |                             topping                             | 
+------+-------+------+-------------------+--------------------------------------------------------------------------------------------------------------------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ 
| 0001 | donut | Cake | 0.550000011920929 | {"batter":[{"id":"1001","type":"Regular"},{"id":"1002","type":"Chocolate"},{"id":"1003","type":"Blueberry"},{"id":"1004","type":"Devil'sFood"}]} | [{"id":"5001","type":"None"},{"id":"5002","type":"Glazed"},{"id":"5005","type":"Sugar"},{"id":"5007","type":"PowderedSugar"},{"id":"5006","type":"ChocolatewithSprinkles"},{"id":"5003","type":"Chocolate"},{"id":"5004","type":"Maple"}] | 
+------+-------+------+-------------------+--------------------------------------------------------------------------------------------------------------------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+

来源

2017-04-26 05:50:03

谢谢，当我试图查询它返回folllowing错误**无法用异常产生java.io.IOException：org.apache.hadoop .hive.serde2.SerDeException：org.codehaus.jackson.JsonParseException：意外的输入结束：OBJECT的预期关闭标记（来自：[Source：[email protected]; line：1，column：0]） at [Source：java.io.ByteArrayInputStream的@ 73304204; line：1，column：3] **如果您对输入数据进行了任何格式化，请让我知道 –

任何JSON文档都应该写入一行。我不知道任何知道如何处理多行文档的JSON SerDe。 –

它工作时，我删除附近体贴分号。感谢

CREATE EXTERNAL TABLE format.json_serde（
id串，
type串，
name串，
ppu浮子，

batters结构< batter：阵列< 结构< bid：串， btype：string >>>，

topping阵列<结构< tid：字符串，ttype：字符串>> ）

来源

2017-04-27 01:47:11

错误嵌套JSON在蜂巢

回答

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