Horton

Re: [HACKERS] path toward faster partition pruning

Michael Paquier <michael@paquier.xyz>

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From: Michael Paquier <michael@paquier.xyz>
To: Marina Polyakova <m.polyakova@postgrespro.ru>
Cc: Amit Langote <Langote_Amit_f8@lab.ntt.co.jp>, Amit Langote <amitlangote09@gmail.com>, David Rowley <david.rowley@2ndquadrant.com>, Dilip Kumar <dilipbalaut@gmail.com>, Alvaro Herrera <alvherre@alvh.no-ip.org>, Ashutosh Bapat <ashutosh.bapat@enterprisedb.com>, Robert Haas <robertmhaas@gmail.com>, Tom Lane <tgl@sss.pgh.pa.us>, pgsql-hackers@postgresql.org
Date: 2018-05-07T01:37:10Z
Lists: pgsql-hackers 
On Fri, May 04, 2018 at 12:32:23PM +0300, Marina Polyakova wrote:
> I got a similar server crash as in [1] on the master branch since the commit
> 9fdb675fc5d2de825414e05939727de8b120ae81 when the assertion fails because
> the second argument ScalarArrayOpExpr is not a Const or an ArrayExpr, but is
> an ArrayCoerceExpr (see [2]):

Indeed, I can see the crash.  I have been playing with this stuff and I
am in the middle of writing the patch, but let's track this properly for
now.
--
Michael

Commits

  1. Fix assorted partition pruning bugs

  2. Make gen_partprune_steps static

  3. Remove useless 'default' clause

  4. Reorganize partitioning code

  5. Use custom hash opclass for hash partition pruning

  6. Blindly attempt to fix sepgsql tests broken due to 9fdb675fc5.

  7. Attempt to fix endianess issues in new hash partition test.

  8. Faster partition pruning

  9. For partitionwise join, match on partcollation, not parttypcoll.

  10. Revise API for partition bound search functions.

  11. Revise API for partition_rbound_cmp/partition_rbound_datum_cmp.

  12. Fix possible crash in partition-wise join.

  13. Refactor code for partition bound searching

  14. New C function: bms_add_range

  15. Add extensive tests for partition pruning.

  16. Add null test to partition constraint for default range partitions.

  17. Remove BufFile's isTemp flag.

  18. Make OWNER TO subcommand mention consistent

  19. Fix index matching for operators with mixed collatable/noncollatable inputs.