On Thu, Sep 17, 2015 at 6:29 AM, Haribabu Kommi <kommi.harib...@gmail.com>
> On Thu, Sep 17, 2015 at 6:10 AM, Robert Haas <robertmh...@gmail.com>
> > On Thu, Sep 10, 2015 at 12:12 AM, Amit Kapila <amit.kapil...@gmail.com>
> >>> 2. I think it's probably a good idea - at least for now, and maybe
> >>> forever - to avoid nesting parallel plans inside of other parallel
> >>> plans.  It's hard to imagine that being a win in a case like this, and
> >>> it certainly adds a lot more cases to think about.
> >>
> >> I also think that avoiding nested parallel plans is a good step
> >
> > Doing that as a part of the assess parallel safety patch was trivial,
so I did.
> >
> I tried with latest HEAD code, seems to be problem is present in other
> scenarios.

As mentioned previously [1], we have to do two different things to make
this work, Robert seems to have taken care of one of those (basically
second point in mail[1]) and still another one needs to be taken care
which is to provide support of reading subplans in readfuncs.c and that
will solve the problem you are seeing now.

[1] -

With Regards,
Amit Kapila.
EnterpriseDB: http://www.enterprisedb.com

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