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https://issues.apache.org/jira/browse/TAJO-1329?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14350157#comment-14350157
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ASF GitHub Bot commented on TAJO-1329:
--------------------------------------
Github user jihoonson commented on the pull request:
https://github.com/apache/tajo/pull/389#issuecomment-77532031
@hyunsik with the latest patch, the ```create table``` statement works well.
However, I couldn't see the detailed information of nested columns. Please
see the following example.
```
default> create table nested_table (f1 int, nested_field record (f2 int4,
f3 int8), f3 text);
OK
default> \d
nested_table
default> \d nested_table
table name: default.nested_table
table path: hdfs://localhost:7020/tajo/warehouse/default/nested_table
store type: CSV
number of rows: 0
volume: 0 B
Options:
'text.delimiter'='|'
schema:
f1 INT4
nested_field RECORD
f3 TEXT
```
The ```nested_field``` column is presented as just one record, and details
are veiled. It would be much greater if you improve it.
> Improve Schema class to support nested struct support
> -----------------------------------------------------
>
> Key: TAJO-1329
> URL: https://issues.apache.org/jira/browse/TAJO-1329
> Project: Tajo
> Issue Type: Sub-task
> Components: catalog
> Reporter: Hyunsik Choi
> Assignee: Hyunsik Choi
> Fix For: 0.11
>
> Attachments: TAJO-1329.patch, TAJO-1329_2.patch, TAJO-1329_3.patch,
> TAJO-1329_4.patch
>
>
> The main objective is to improve Schema class to support nested struct
> support. This issues involves in-memory structure and protobuf
> (de)serialization structure.
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