Re: WIP: Faster Expression Processing v4

Tom Lane <tgl@sss.pgh.pa.us>

From: Tom Lane <tgl@sss.pgh.pa.us>

To: Andres Freund <andres@anarazel.de>

Cc: Heikki Linnakangas <hlinnaka@iki.fi>, Tomas Vondra <tomas.vondra@2ndquadrant.com>, pgsql-hackers@postgresql.org

Date: 2017-03-23T17:14:59Z

Lists: pgsql-hackers

Looking at some of the coding choices you made here, I see that you're
making a hard assumption that called functions never scribble on their
fcinfo->arg/argnull arrays.  I do not believe that we've ever had such
an assumption before.  Are we comfortable with that?  If so, we'd
better document it.

			regards, tom lane

Commits

Improve performance of ExecEvalWholeRowVar.
- 2f0903ea1965 10.0 landed
Remove unreachable code in expression evaluation.
- ad46a2aa79f9 10.0 landed
Faster expression evaluation and targetlist projection.
- b8d7f053c5c2 10.0 landed
Avoid syntax error on platforms that have neither LOCALE_T nor ICU.
- 457a44487328 10.0 cited
Add configure test to see if the C compiler has gcc-style computed gotos.
- bc18126a6bcb 10.0 landed
Improve regression test coverage for TID scanning.
- be6c3d19fd45 10.0 landed
Improve expression evaluation test coverage.
- ce38949ba23a 10.0 landed
Fix two errors with nested CASE/WHEN constructs.
- f0c7b789ab12 9.6.0 cited