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https://issues.apache.org/jira/browse/HIVE-777?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12747413#action_12747413
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He Yongqiang commented on HIVE-777:
-----------------------------------
I just realized that in this case 'null' is correct.
There is an example to show why:
hive> create table abc(strct struct<a:int, b:string>, value string);
OK
Time taken: 0.502 seconds
hive> load data local inpath
'/Users/char/Documents/workspace/Hive-Clean/data/files/kv1.txt' overwrite into
table abc;
hive> select * from abc limit 10;
Output:
{"a":238,"b":null} val_238
{"a":86,"b":null} val_86
{"a":311,"b":null} val_311
{"a":27,"b":null} val_27
{"a":165,"b":null} val_165
{"a":409,"b":null} val_409
{"a":255,"b":null} val_255
{"a":278,"b":null} val_278
{"a":98,"b":null} val_98
{"a":484,"b":null} val_484
We need to find a way to assemble struct data,
> CREATE TABLE with STRUCT type
> -----------------------------
>
> Key: HIVE-777
> URL: https://issues.apache.org/jira/browse/HIVE-777
> Project: Hadoop Hive
> Issue Type: New Feature
> Components: Query Processor
> Reporter: Zheng Shao
> Assignee: He Yongqiang
> Attachments: hive-777-2009-8-21-2.patch, hive-777-2009-8-21.patch,
> hive-777-2009-8-29.patch
>
>
> Currently we only support map/array in type definition.
> We should support STRUCT as well.
> {code}
> CREATE TABLE abc (
> pageid INT,
> ads STRUCT<adid:INT,location:STRING>,
> userid INT
> );
> {code}
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