Re: Parallel copy

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От vignesh C
Тема Re: Parallel copy
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Msg-id CALDaNm2BSTFKHnkehymLis30AgQpqeHz0itBHWp_K-i=Q5vgEQ@mail.gmail.com
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Ответ на Re: Parallel copy  ("Daniel Westermann (DWE)" <daniel.westermann@dbi-services.com>)
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On Thu, Oct 29, 2020 at 2:26 PM Daniel Westermann (DWE)
<daniel.westermann@dbi-services.com> wrote:
>
> On 27/10/2020 15:36, vignesh C wrote:
> >> Attached v9 patches have the fixes for the above comments.
>
> >I did some testing:
>
> I did some testing as well and have a cosmetic remark:
>
> postgres=# copy t1 from '/var/tmp/aa.txt' with (parallel 1000000000);
> ERROR:  value 1000000000 out of bounds for option "parallel"
> DETAIL:  Valid values are between "1" and "1024".
> postgres=# copy t1 from '/var/tmp/aa.txt' with (parallel 100000000000);
> ERROR:  parallel requires an integer value
> postgres=#
>
> Wouldn't it make more sense to only have one error message? The first one seems to be the better message.
>

I had seen similar behavior in other places too:
postgres=# vacuum (parallel 1000000000) t1;
ERROR:  parallel vacuum degree must be between 0 and 1024
LINE 1: vacuum (parallel 1000000000) t1;
                ^
postgres=# vacuum (parallel 100000000000) t1;
ERROR:  parallel requires an integer value

I'm not sure if we should fix this.

Regards,
Vignesh
EnterpriseDB: http://www.enterprisedb.com



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