[
https://issues.apache.org/jira/browse/IMPALA-6168?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Alex Rodoni reassigned IMPALA-6168:
-----------------------------------
Assignee: (was: Alex Rodoni)
> Different result range of rand/random built-in function
> -------------------------------------------------------
>
> Key: IMPALA-6168
> URL: https://issues.apache.org/jira/browse/IMPALA-6168
> Project: IMPALA
> Issue Type: Bug
> Components: Backend
> Affects Versions: Impala 2.10.0
> Reporter: Jinchul Kim
> Priority: Minor
> Labels: correctness, newbie
>
> I am not sure this is a bug because it might be intended behavior. Please
> close this if it is not a bug.
> When I was re-implementing rand at IMPALA-5754, I realized some DBMSes(e.g.
> Postgres, MySQL and Vertica) adopt the following range: "0 <= result < 1". By
> the way, Impala's range of the current implementation is "0 <= result <= 1"
> and document also says "Returns a random value between 0 and 1".
> Would you let me know why the difference comes from? Please explain if it is
> intended behavior.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-all-unsubscr...@impala.apache.org
For additional commands, e-mail: issues-all-h...@impala.apache.org
