On Sun, Mar 26, 2017 at 11:11 AM, Andres Freund <andres@anarazel.de> wrote:
> Faster expression evaluation and targetlist projection.
>
> This replaces the old, recursive tree-walk based evaluation, with
> non-recursive, opcode dispatch based, expression evaluation.
> Projection is now implemented as part of expression evaluation.
>
> This both leads to significant performance improvements, and makes
> future just-in-time compilation of expressions easier.
This is a huge achievement. Congratulations!
--
Thomas Munro
http://www.enterprisedb.com