Re: WARNING in parallel index creation.

On Sun, Mar 11, 2018 at 10:15 PM, Jeff Janes <jeff(dot)janes(at)gmail(dot)com> wrote:
> Then when I create in index, I get a warning:
>
> jjanes=# create index on pgbench_accounts (foobar(filler));
> WARNING: cannot set parameters during a parallel operation
> WARNING: cannot set parameters during a parallel operation
>
> If I create the index again within the same session, there is no WARNING.
>
> This only occurs if plperl.on_init is set in the postgresql.conf file. It
> doesn't seem to matter what it is set to,
> even the empty string triggers the warning.

I wonder why DefineCustomStringVariable() does not set var->reset_val.
We see that within DefineCustomEnumVariable(),
DefineCustomRealVariable(), DefineCustomIntVariable(), etc.

--
Peter Geoghegan