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https://issues.apache.org/jira/browse/TAJO-1537?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14483100#comment-14483100
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Yongjin Choi commented on TAJO-1537:
------------------------------------

The virtual table name is 'session'. 
The example of this is as follows.
{code:sql}
yjchoi:~$ tsql
default> select * from information_schema.session;
session_id,  username,  current_db,  last_access_time
-------------------------------
8238f2b6-9fa6-48d2-aba2-676bc671f09e,  yjchoi,  default,  2015-04-07 
18:13:56.931999
{code}


> Implement a virtual table for sessions
> --------------------------------------
>
>                 Key: TAJO-1537
>                 URL: https://issues.apache.org/jira/browse/TAJO-1537
>             Project: Tajo
>          Issue Type: New Feature
>          Components: tajo master
>            Reporter: Yongjin Choi
>            Assignee: Yongjin Choi
>            Priority: Minor
>
> Most databases provide a way to get information about active sessions (e.g., 
> pg_stat_activity in postgresql, processlist in mysql, v$session in oracle, 
> and so on).
> But, tajo does not have such table yet.
> Implementing session virtual table would be helpful to monitoring and 
> administration.



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