Horton

Re: [HACKERS] Runtime Partition Pruning

Amit Langote <amitlangote09@gmail.com>

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From: Amit Langote <amitlangote09@gmail.com>
To: Simon Riggs <simon@2ndquadrant.com>
Cc: David Rowley <david.rowley@2ndquadrant.com>, Jesper Pedersen <jesper.pedersen@redhat.com>, Rajkumar Raghuwanshi <rajkumar.raghuwanshi@enterprisedb.com>, Beena Emerson <memissemerson@gmail.com>, Alvaro Herrera <alvherre@alvh.no-ip.org>, Amit Langote <Langote_Amit_f8@lab.ntt.co.jp>, Robert Haas <robertmhaas@gmail.com>, amul sul <sulamul@gmail.com>, "pgsql-hackers@postgresql.org" <pgsql-hackers@postgresql.org>, Dilip Kumar <dilipbalaut@gmail.com>
Date: 2018-02-26T04:13:14Z
Lists: pgsql-hackers 
(Sorry, I had mistakenly replied only to Simon on Friday)

On Fri, Feb 23, 2018 at 9:04 PM, Simon Riggs <simon@2ndquadrant.com> wrote:
> On 23 February 2018 at 11:40, David Rowley <david.rowley@2ndquadrant.com> wrote:
>> On 23 February 2018 at 04:11, Jesper Pedersen
>> <jesper.pedersen@redhat.com> wrote:
>>> Are UPDATE and DELETE suppose to be supported ?
>>
>> To be honest, I had not even considered those.
>
> I can say that I had considered those. Handling of UPDATE and DELETE
> with partitions is significantly different, so its not just an
> oversight its a different branch of the project.
>
> We need SELECT to work first and then we have a chance of making
> UPDATE/DELETE work.

+1

Thanks,
Amit

Commits

  1. Initialize ExprStates once in run-time partition pruning

  2. Add bms_prev_member function

  3. Support partition pruning at execution time

  4. Document partprune.c a little better

  5. Fix crash in pg_replication_slot_advance

  6. Add parallel-aware hash joins.

  7. Fix typo.

  8. Allow --with-bonjour to work with non-macOS implementations of Bonjour.

  9. Mention need for --no-inc-recursive in rsync command