| From: | Amit Langote <amitlangote09(at)gmail(dot)com> |
|---|---|
| To: | Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com> |
| Cc: | Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, keisuke kuroda <keisuke(dot)kuroda(dot)3862(at)gmail(dot)com>, Tatsuro Yamada <tatsuro(dot)yamada(dot)tf(at)nttcom(dot)co(dot)jp>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, tatsuhito(dot)kasahara(dot)rd(at)hco(dot)ntt(dot)co(dot)jp |
| Subject: | Re: Huge memory consumption on partitioned table with FKs |
| Date: | 2020-12-07 14:01:47 |
| Message-ID: | CA+HiwqGKkWYgbpkNkxJOO5Uto7JMs3im-x8K8qmn_f9W+wzesw@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Fri, Dec 4, 2020 at 12:05 PM Kyotaro Horiguchi
<horikyota(dot)ntt(at)gmail(dot)com> wrote:
> > Also, the comment that was in RI_ConstraintInfo now appears in
> > RI_ConstraintParam, and the new struct (RI_ConstraintInfo) is now
> > undocumented. What is the relationship between those two structs? I
> > see that they have pointers to each other, but I think the relationship
> > should be documented more clearly.
>
> I'm not sure the footprint of this patch worth doing but here is a bit
> more polished version.
I noticed that the foreign_key test fails and it may have to do with
the fact that a partition's param info remains attached to the
parent's RI_ConstraintInfo even after it's detached from the parent
table using DETACH PARTITION.
--
Amit Langote
EDB: http://www.enterprisedb.com
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