Horton

Re: WIP: Faster Expression Processing and Tuple Deforming (including JIT)

Craig Ringer <craig@2ndquadrant.com>

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From: Craig Ringer <craig@2ndquadrant.com>
To: Robert Haas <robertmhaas@gmail.com>
Cc: Andres Freund <andres@anarazel.de>, Tom Lane <tgl@sss.pgh.pa.us>, "pgsql-hackers@postgresql.org" <pgsql-hackers@postgresql.org>, Heikki Linnakangas <hlinnaka@iki.fi>, Doug Doole <ddoole@salesforce.com>
Date: 2016-12-07T06:44:14Z
Lists: pgsql-hackers 
On 7 December 2016 at 14:39, Craig Ringer <craig@2ndquadrant.com> wrote:
> On 7 December 2016 at 04:13, Robert Haas <robertmhaas@gmail.com> wrote:
>
>> I wonder how feasible it would be to make this a run-time dependency
>> rather than a compile option.
>
> Or something that's compiled with the server, but produces a separate
> .so that's the only thing that links to LLVM. So packagers can avoid a
> dependency on LLVM for postgres.

Ahem, next time I'll finish the thread first. Nevermind.

-- 
 Craig Ringer                   http://www.2ndQuadrant.com/
 PostgreSQL Development, 24x7 Support, Training & Services

Commits

  1. Improve performance of ExecEvalWholeRowVar.

  2. Remove unreachable code in expression evaluation.

  3. Faster expression evaluation and targetlist projection.

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

  5. Add configure test to see if the C compiler has gcc-style computed gotos.

  6. Improve regression test coverage for TID scanning.

  7. Improve expression evaluation test coverage.

  8. Fix two errors with nested CASE/WHEN constructs.