Horton

Re: UPDATE of partition key

Amit Kapila <amit.kapila16@gmail.com>

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From: Amit Kapila <amit.kapila16@gmail.com>
To: Amit Khandekar <amitdkhan.pg@gmail.com>
Cc: Robert Haas <robertmhaas@gmail.com>, Dilip Kumar <dilipbalaut@gmail.com>, Amit Langote <Langote_Amit_f8@lab.ntt.co.jp>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2017-06-10T02:11:14Z
Lists: pgsql-hackers 
On Fri, Jun 9, 2017 at 7:48 PM, Amit Khandekar <amitdkhan.pg@gmail.com> wrote:
> On 9 June 2017 at 19:10, Amit Kapila <amit.kapila16@gmail.com> wrote:
>> On Thu, Jun 8, 2017 at 10:40 PM, Robert Haas <robertmhaas@gmail.com> wrote:
>>> On Thu, Jun 8, 2017 at 7:01 AM, Amit Kapila <amit.kapila16@gmail.com> wrote:
>>>>
>>>> I think before doing above check we can simply check if ctid.ip_blkid
>>>> contains InvalidBlockNumber, then return an error.
>>>
>>> Hmm, OK.  That case never happens today?
>>>
>>
>> As per my understanding that case doesn't exist.  I will verify again
>> once the patch is available.  I can take a crack at it if Amit
>> Khandekar is busy with something else or is not comfortable in this
>> area.
>
> Amit, I was going to have a look at this, once I finish with the other
> part.
>

Sure, will wait for your patch to be available.  I can help by
reviewing the same.


-- 
With Regards,
Amit Kapila.
EnterpriseDB: http://www.enterprisedb.com

Commits

  1. Avoid referencing off the end of subplan_partition_offsets.

  2. Allow UPDATE to move rows between partitions.

  3. Remove useless lookup of root partitioned rel in ExecInitModifyTable().

  4. Factor error generation out of ExecPartitionCheck.

  5. Minor preparatory refactoring for UPDATE row movement.

  6. Simplify and encapsulate tuple routing support code.

  7. Avoid coercing a whole-row variable that is already coerced.

  8. Use ResultRelInfo ** rather than ResultRelInfo * for tuple routing.

  9. Make RelationGetPartitionDispatchInfo expand depth-first.

  10. Expand partitioned tables in PartDesc order.

  11. Use a real RT index when setting up partition tuple routing.

  12. Fix transition tables for partition/inheritance.

  13. Fix confusion about number of subplans in partitioned INSERT setup.

  14. Prevent BEFORE triggers from violating partitioning constraints.

  15. Fire per-statement triggers on partitioned tables.

  16. Fix reporting of violations in ExecConstraints, again.

  17. Don't scan partitioned tables.

  18. Allow FDWs to push down quals without breaking EvalPlanQual rechecks.