Horton

Re: [HACKERS] path toward faster partition pruning

Amit Langote <amitlangote09@gmail.com>

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From: Amit Langote <amitlangote09@gmail.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Andres Freund <andres@anarazel.de>, David Rowley <david.rowley@2ndquadrant.com>, Ashutosh Bapat <ashutosh.bapat@enterprisedb.com>, Alvaro Herrera <alvherre@alvh.no-ip.org>, Amit Langote <Langote_Amit_f8@lab.ntt.co.jp>, "pgsql-hackers@postgresql.org" <pgsql-hackers@postgresql.org>
Date: 2018-04-07T06:41:35Z
Lists: pgsql-hackers 
On Sat, Apr 7, 2018 at 1:39 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Amit Langote <amitlangote09@gmail.com> writes:
>> Given that the difference only appeared on animals that David pointed
>> out have big-endian architecture, it seems we'd only need two output
>> files.
>
> Dunno, I'm wondering whether 32 vs 64 bit will make a difference.

There was one 32-bit animal in the failing set, which apparently
produces the same hashes as others (allegedly due to endianness
difference).

powerpc 32-bit userspace on ppc64 host:
https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=termite&dt=2018-04-06%2023%3A40%3A07

...and it has turned green since the alternative outputs fix went in.

https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=termite&dt=2018-04-07%2004%3A06%3A09

Thanks,
Amit

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.