| From: | Andreas Seltenreich <seltenreich(at)gmx(dot)de> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: [sqlsmith] Failed to generate plan on lateral subqueries |
| Date: | 2015-12-08 06:55:07 |
| Message-ID: | 87lh95h1kk.fsf@elite.ansel.ydns.eu |
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| Thread: | |
| Lists: | pgsql-hackers |
I wrote:
> Tom Lane writes:
>> Andreas Seltenreich <seltenreich(at)gmx(dot)de> writes:
>>> I've added new grammar rules to sqlsmith and improved some older ones.
>>> This was rewarded with a return of "failed to generate plan" errors.
>>
>> I believe I've dealt with these cases now. Thanks for the report!
>
> I no longer see "failed to build any n-way joins" after pulling, but
> there are still instances of "could not devise a query plan". Samples below.
sorry, I spoke too soon: nine of the former have been logged through the
night. I'm attaching a larger set of sample queries this time in case
that there are still multiple causes for the observed errors.
regards,
Andreas
| Attachment | Content-Type | Size |
|---|---|---|
| failed_to_build_any_n-way_joins.sql | text/plain | 22.9 KB |
| could_not_devise_a_plan.sql | text/plain | 24.8 KB |
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