Re: [COMMITTERS] pgsql: Fix VACUUM_TRUNCATE_LOCK_WAIT_INTERVAL

On 7 September 2016 at 13:47, Fujii Masao <masao.fujii@gmail.com> wrote:
> On Tue, Sep 6, 2016 at 11:41 PM, Simon Riggs <simon@2ndquadrant.com> wrote:
>> Fix VACUUM_TRUNCATE_LOCK_WAIT_INTERVAL
>>
>> lazy_truncate_heap() was waiting for
>> VACUUM_TRUNCATE_LOCK_WAIT_INTERVAL, but in microseconds
>> not milliseconds as originally intended.
>
> Don't we need to back-patch this?

If we do then a database-wide VACUUM on a busy database will take
substantially longer than it does now.

That may not be perceived as a "fix" by everybody, so we should not do
it without an explicit agreement by many.

Thoughts?

-- 
Simon Riggs                http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services