| From: | Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com>, David Rowley <david(dot)rowley(at)2ndquadrant(dot)com> |
| Cc: | Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, Amit Langote <amitlangote09(at)gmail(dot)com>, Jesper Pedersen <jesper(dot)pedersen(at)redhat(dot)com>, Rajkumar Raghuwanshi <rajkumar(dot)raghuwanshi(at)enterprisedb(dot)com>, Beena Emerson <memissemerson(at)gmail(dot)com>, amul sul <sulamul(at)gmail(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>, Dilip Kumar <dilipbalaut(at)gmail(dot)com> |
| Subject: | Re: [HACKERS] Runtime Partition Pruning |
| Date: | 2018-04-13 05:58:34 |
| Message-ID: | 314f8ad6-a99a-607d-340c-ce406b97d4e9@lab.ntt.co.jp |
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| Lists: | pgsql-hackers |
On 2018/04/13 14:48, Amit Langote wrote:
> On 2018/04/13 14:38, Amit Langote wrote:
>> About the specific relation_open(.., NoLock) under question, I think there
>> might be a way to address this by opening the tables with the appropriate
>> lock mode in partitioned_rels list in ExecLockNonleafAppendTables
>
> That may have sounded a bit confusing:
>
> I meant to say: "by opening the tables in partitioned_rels list with the
> appropriate lock mode in ExecLockNonleafAppendTables"
>
>> Attached a PoC patch.
>
> There were a couple of unnecessary hunks, which removed in the attached.
Sorry, still a couple more were unnecessary.
Thanks,
Amit
| Attachment | Content-Type | Size |
|---|---|---|
| open-partitioned-rels-for-pruning-3.patch | text/plain | 9.3 KB |
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