Re: [HACKERS] Parallel tuplesort (for parallel B-Tree index creation) - Mailing list pgsql-hackers

From Amit Kapila
Subject Re: [HACKERS] Parallel tuplesort (for parallel B-Tree index creation)
Date
Msg-id CAA4eK1K4vWz4egWe+mA9jNm1p_qK_na++WJXE2-x_8Y6SZX0zA@mail.gmail.com
Whole thread Raw
In response to Re: [HACKERS] Parallel tuplesort (for parallel B-Tree index creation)  (Peter Geoghegan <pg@bowt.ie>)
List pgsql-hackers
On Sat, Jan 20, 2018 at 10:20 AM, Peter Geoghegan <pg@bowt.ie> wrote:
> On Fri, Jan 19, 2018 at 8:44 PM, Amit Kapila <amit.kapila16@gmail.com> wrote:
>> Right, but I think using parallel_leader_participation, you can do it
>> reliably and probably write some regression tests which can complete
>> in a predictable time.
>
> Do what reliably? Guarantee that the leader will not participate as a
> worker, but that workers will be used? If so, yes, you can get that.
>

Yes, that's what I mean.

-- 
With Regards,
Amit Kapila.
EnterpriseDB: http://www.enterprisedb.com


pgsql-hackers by date:

Previous
From: John Naylor
Date:
Subject: Re: MCV lists for highly skewed distributions
Next
From: Tom Lane
Date:
Subject: Re: [HACKERS] postgres_fdw bug in 9.6