[jira] [Created] (TAJO-1620) random() in an SQL generates same numbers

[Youngkyong Ko (JIRA)]

Youngkyong Ko created TAJO-1620:
-----------------------------------

             Summary: random() in an SQL generates same numbers
                 Key: TAJO-1620
                 URL: https://issues.apache.org/jira/browse/TAJO-1620
             Project: Tajo
          Issue Type: Bug
            Reporter: Youngkyong Ko
            Priority: Minor


random() function in projection list should generate different random numbers. 
Currently it generates same numbers  like below: 

SELECT o_custkey, o_totalprice, random(10) as rand from orders limit 10;

o_custkey,  o_totalprice,  rand
-------------------------------
36901,  173665.47,  8
78002,  46929.18,  8
123314,  193846.25,  8
136777,  32151.78,  8
44485,  144659.2,  8
55624,  58749.59,  8
39136,  252004.18,  8
130057,  208660.75,  8
66958,  163243.98,  8
61001,  58949.67,  8
(10 rows, 1.195 sec, 178 B selected)




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