| From: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> |
|---|---|
| To: | "kato-sho(at)fujitsu(dot)com" <kato-sho(at)fujitsu(dot)com> |
| Cc: | "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Creating foreign key on partitioned table is too slow |
| Date: | 2019-10-24 18:48:57 |
| Message-ID: | 20191024184857.GA14525@alvherre.pgsql |
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| Thread: | |
| Lists: | pgsql-hackers |
On 2019-Oct-23, kato-sho(at)fujitsu(dot)com wrote:
> Hello
>
> To benchmark with tpcb model, I tried to create a foreign key in the partitioned history table, but backend process killed by OOM.
> the number of partitions is 8192. I tried in master(commit: ad4b7aeb84).
>
> I did the same thing in another server which has 200GB memory, but creating foreign key did not end in 24 hours.
Thanks for reporting. It sounds like there must be a memory leak here.
I am fairly pressed for time at present so I won't be able to
investigate this until, at least, mid November.
--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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