Horton

Re: Declarative partitioning - another take

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

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From: Amit Langote <Langote_Amit_f8@lab.ntt.co.jp>
To: Greg Stark <stark@mit.edu>
Cc: Robert Haas <robertmhaas@gmail.com>, Dmitry Ivanov <d.ivanov@postgrespro.ru>, Michael Paquier <michael.paquier@gmail.com>, Andres Freund <andres@anarazel.de>, Erik Rijkers <er@xs4all.nl>, Amit Langote <amitlangote09@gmail.com>, Rajkumar Raghuwanshi <rajkumar.raghuwanshi@enterprisedb.com>, Ashutosh Bapat <ashutosh.bapat@enterprisedb.com>, Pg Hackers <pgsql-hackers@postgresql.org>, pgsql-hackers-owner@postgresql.org
Date: 2016-12-16T08:58:04Z
Lists: pgsql-hackers 
On 2016/12/16 17:38, Greg Stark wrote:
> Just poking around with partitioning. I notice that "\d parent"
> doesn't list all the partitions, suggesting to use \d+ but a plain
> "\d" does indeed list the partitions. That seems a bit strange and
> also probably impractical if you have hundreds or thousands of
> partitions. Has this come up in previous discussions? Unfortunately
> it's proving a bit hard to search for "\d" :/

Do you mean a plain "\d" (without an argument) should not list tables that
are partitions?  I think that might be preferable.  That would mean, we
list only the root partitioned tables with a plain "\d".

Regarding "\d parent", it does the same thing as regular inheritance, but
using the term "partition" instead of "child table".  Without specifying a
+ (\d parent), one gets just "Number of partitions: # (Use \d+ to list
them.)" and with + (\d+ parent), one gets the full list of partitions
showing the partition bound with each.

Thanks,
Amit

Commits

  1. Fix typo.

  2. Document trigger-firing behavior for inheritance/partitioning.

  3. Fire per-statement triggers on partitioned tables.

  4. Set ecxt_scantuple correctly for tuple routing.

  5. Fix interaction of partitioned tables with BulkInsertState.

  6. Avoid core dump for empty prepared statement in an aborted transaction.

  7. Fix some problems in check_new_partition_bound().

  8. Remove unnecessary arguments from partitioning functions.

  9. Fix reporting of constraint violations for table partitioning.

  10. Fix tuple routing in cases where tuple descriptors don't match.

  11. Invalid parent's relcache after CREATE TABLE .. PARTITION OF.

  12. Doc: improve documentation about inheritance.