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From Sergi Vladykin <sergi.vlady...@gmail.com>
Subject Re: nested SQL sub-queries with non-collocated joins
Date Thu, 01 Jun 2017 20:07:11 GMT
If you don't see an exception then it must be supported. This is the whole
point of this exception, right?

Sergi

2017-06-01 22:50 GMT+03:00 Dmitriy Setrakyan <dsetrakyan@apache.org>:

> On Thu, Jun 1, 2017 at 12:32 PM, Sergi Vladykin <sergi.vladykin@gmail.com>
> wrote:
>
> > I guess it must work the following way:
> >
> > If distributed joins are enabled we can try to prove that the subquery is
> > collocated, if we can't then try to rewrite it, if we can't, then throw
> an
> > exception.
> >
> > Still this can not be done 100% correct, probably we have to have some
> flag
> > which allows to disable this subquery rewriting.
> >
>
> Sergi, but how do you explain to users what is supported and what is not?
>

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