Re: UPDATE of partition key

Thomas Munro <thomas.munro@enterprisedb.com>

From: Thomas Munro <thomas.munro@enterprisedb.com>

To: Robert Haas <robertmhaas@gmail.com>

Cc: Greg Stark <stark@mit.edu>, Amit Khandekar <amitdkhan.pg@gmail.com>, pgsql-hackers <pgsql-hackers@postgresql.org>

Date: 2017-02-20T10:08:13Z

Lists: pgsql-hackers

On Mon, Feb 20, 2017 at 3:36 PM, Thomas Munro
<thomas.munro@enterprisedb.com> wrote:
> On Thu, Feb 16, 2017 at 8:53 PM, Robert Haas <robertmhaas@gmail.com> wrote:
>> Generally speaking, we don't throw
>> serialization errors today at READ COMMITTED, so if we do so here,
>> that's going to be a noticeable and perhaps unwelcome change.
>
> Yes we do:
>
> https://www.postgresql.org/docs/9.6/static/transaction-iso.html#XACT-REPEATABLE-READ

Oops -- please ignore, I misread that as repeatable read.

-- 
Thomas Munro
http://www.enterprisedb.com

Commits

Avoid referencing off the end of subplan_partition_offsets.
- 945f71db8452 11.0 landed
Allow UPDATE to move rows between partitions.
- 2f178441044b 11.0 landed
Remove useless lookup of root partitioned rel in ExecInitModifyTable().
- dca48d145e0e 11.0 cited
Factor error generation out of ExecPartitionCheck.
- 19c47e7c8202 11.0 landed
Minor preparatory refactoring for UPDATE row movement.
- ef6087ee5fa8 11.0 landed
Simplify and encapsulate tuple routing support code.
- cc6337d2fed5 11.0 landed
Avoid coercing a whole-row variable that is already coerced.
- 1c497fa72df7 11.0 landed
Use ResultRelInfo ** rather than ResultRelInfo * for tuple routing.
- 60f7c0abef03 11.0 landed
Make RelationGetPartitionDispatchInfo expand depth-first.
- 77b6b5e9ceca 11.0 cited
Expand partitioned tables in PartDesc order.
- 30833ba154e0 11.0 cited
Use a real RT index when setting up partition tuple routing.
- f81a91db4d1c 10.0 cited
Fix transition tables for partition/inheritance.
- 501ed02cf6f4 10.0 cited
Fix confusion about number of subplans in partitioned INSERT setup.
- 78a030a44196 10.0 cited
Prevent BEFORE triggers from violating partitioning constraints.
- 15ce775faa42 10.0 cited
Fire per-statement triggers on partitioned tables.
- e180c8aa8caf 10.0 cited
Fix reporting of violations in ExecConstraints, again.
- c0a8ae7be392 10.0 cited
Don't scan partitioned tables.
- d3cc37f1d801 10.0 cited
Allow FDWs to push down quals without breaking EvalPlanQual rechecks.
- 5fc4c26db512 9.6.0 cited