Horton

Re: Parallel Append implementation

Robert Haas <robertmhaas@gmail.com>

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From: Robert Haas <robertmhaas@gmail.com>
To: Andres Freund <andres@anarazel.de>
Cc: Amit Khandekar <amitdkhan.pg@gmail.com>, Ashutosh Bapat <ashutosh.bapat@enterprisedb.com>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2017-04-04T14:22:53Z
Lists: pgsql-hackers 
On Mon, Apr 3, 2017 at 4:17 PM, Andres Freund <andres@anarazel.de> wrote:
> I'm afraid this is too late for v10 - do you agree?

Yeah, I think so.  The benefit of this will be a lot more once we get
partitionwise join and partitionwise aggregate working, but that
probably won't happen for this release, or at best in limited cases.
And while we might not agree on exactly what work this patch still
needs, I think it does still need some work.  I've moved this to the
next CommitFest.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

Commits

  1. Update parallel.sgml for Parallel Append

  2. Support Parallel Append plan nodes.

  3. Remove BufFile's isTemp flag.

  4. Improve comments for parallel executor estimation functions.

  5. Separate reinitialization of shared parallel-scan state from ExecReScan.

  6. Eat XIDs more efficiently in recovery TAP test.

  7. Avoid syntax error on platforms that have neither LOCALE_T nor ICU.

  8. Preparatory refactoring for parallel merge join support.