On Thu, Oct 4, 2018 at 12:47 AM Lukasz Szybalski <[email protected]> wrote:
> Thanks,
> one more. This one times out with gateway error and it takes about 9gb of ram 
> if I run it on workbench
>
> SELECT
> author, count(distinct(ticket)) AS 'Count of Tickets'
>   FROM ticket_change
>   WHERE time > UNIX_TIMESTAMP(NOW() - INTERVAL 30 DAY)*1000000
> GROUP BY author
> ORDER BY count(distinct(ticket)) ASC ,author

It is difficult to solve, but field 'comment' is always created when
changing a ticket.
Adding "field = 'comment'" to clauses might reduce the resources.


SELECT author, COUNT(DISTINCT ticket) AS 'Count of Tickets'
FROM ticket_change
WHERE field = 'comment' AND time > UNIX_TIMESTAMP(NOW() - INTERVAL 30
DAY) * 1000000
GROUP BY author
ORDER BY 2, 1

-- 
Jun Omae <[email protected]> (大前 潤)

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