Re: pgsql: Add parallel-aware hash joins.

Hi,

On 2018-01-22 23:17:47 +1300, Thomas Munro wrote:
> On Thu, Dec 28, 2017 at 5:26 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Here is a patch that halves the size of the test tables used. I don't
> want them to be too small because I want some some real parallel
> processing at least sometimes. On my slowest system with assertions
> enabled this brings "time make check" from ~37.5s to ~36.9s. I'm a
> bit worried about choosing parameters that lead to instability across
> the buildfarm, until I make the size estimation code a bit smarter[1],
> so I tested a few variations that affect the alignment and size of
> things (-m32, -malign-double, --disable-atomics, --disable-spinlocks)
> and didn't see failures. Does this pass repeatedly on gaur?

I'd say, let's just commit it and see?

Will do so soon if nobody protests.

Greetings,

Andres Freund