Horton

Re: [HACKERS] Runtime Partition Pruning

Amit Langote <langote_amit_f8@lab.ntt.co.jp>

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From: Amit Langote <Langote_Amit_f8@lab.ntt.co.jp>
To: Robert Haas <robertmhaas@gmail.com>, David Rowley <david.rowley@2ndquadrant.com>
Cc: Alvaro Herrera <alvherre@alvh.no-ip.org>, Amit Langote <amitlangote09@gmail.com>, Jesper Pedersen <jesper.pedersen@redhat.com>, Rajkumar Raghuwanshi <rajkumar.raghuwanshi@enterprisedb.com>, Beena Emerson <memissemerson@gmail.com>, amul sul <sulamul@gmail.com>, "pgsql-hackers@postgresql.org" <pgsql-hackers@postgresql.org>, Dilip Kumar <dilipbalaut@gmail.com>
Date: 2018-04-13T05:58:34Z
Lists: pgsql-hackers

Attachments

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

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