Github user wzhfy commented on the issue:
https://github.com/apache/spark/pull/16422
Hive running result:
```
hive> desc student_test;
OK
id int
info struct<name:string,age:int>
Time taken: 1.643 seconds, Fetched: 2 row(s)
hive> desc student_test info;
OK
name string from deserializer
age int from deserializer
Time taken: 0.062 seconds, Fetched: 2 row(s)
hive> desc student_test info.name;
OK
name string from deserializer
Time taken: 0.061 seconds, Fetched: 1 row(s)
hive> desc formatted student_test info.name;
OK
# col_name data_type min
max num_nulls distinct_count
avg_col_len max_col_len num_trues
num_falses comment
name string
from deserializer
Time taken: 0.252 seconds, Fetched: 3 row(s)
hive> desc formatted student_test info;
OK
# col_name data_type min
max num_nulls distinct_count
avg_col_len max_col_len num_trues
num_falses comment
name string
from deserializer
age int
from deserializer
Time taken: 0.086 seconds, Fetched: 4 row(s)
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