Peter Geoghegan wrote:
> On Mon, Nov 7, 2016 at 8:28 PM, Peter Geoghegan <pg@heroku.com> wrote:
> > What do we need to teach pg_restore about parallel CREATE INDEX, if
> > anything at all? Could this be as simple as a blanket disabling of
> > parallelism for CREATE INDEX from pg_restore? Or, does it need to be
> > more sophisticated than that? I suppose that tools like reindexdb and
> > pgbench must be considered in a similar way.
>
> I still haven't resolved this question, which seems like the most
> important outstanding question,
I don't think a patch must necessarily consider all possible uses that
the new feature may have. If we introduce parallel index creation,
that's great; if pg_restore doesn't start using it right away, that's
okay. You, or somebody else, can still patch it later. The patch is
still a step forward.
--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services