Horton

Re: UPDATE of partition key

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>, Amit Khandekar <amitdkhan.pg@gmail.com>
Cc: Dilip Kumar <dilipbalaut@gmail.com>, Etsuro Fujita <fujita.etsuro@lab.ntt.co.jp>, Amit Kapila <amit.kapila16@gmail.com>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2017-09-08T10:07:17Z
Lists: pgsql-hackers 
On 2017/09/08 18:57, Robert Haas wrote:
>> As mentioned by Amit Langote in the above mail thread, he is going to
>> do changes for making RelationGetPartitionDispatchInfo() return the
>> leaf partitions in depth-first order. Once that is done, I will then
>> remove the hash table method for finding leaf partitions in update
>> result rels, and instead use the earlier efficient method that takes
>> advantage of the fact that update result rels and leaf partitions are
>> in the same order.
> 
> Has he posted that patch yet?  I don't think I saw it, but maybe I
> missed something.

I will post on that thread in a moment.

Thanks,
Amit

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.