Re: [HACKERS] Parallel COPY FROM execution

On Fri, Jun 30, 2017 at 3:35 PM, Pavel Stehule <pavel.stehule@gmail.com> wrote:
>
>
> 2017-06-30 14:23 GMT+02:00 Alex K <kondratov.aleksey@gmail.com>:
>>
>> Thus, it results in a ~60% performance boost per each x2 multiplication of
>> parallel processes, which is consistent with the initial estimation.
>>
>
> the important use case is big table with lot of indexes. Did you test
> similar case?

Not yet, I will try it, thank you for a suggestion. But how much is it
'big table' and 'lot of indexes' in numbers approximately?

Also, index updates and constraint checks performance are what I cannot
control during COPY execution, so probably I have not to care too much
about that. But of course, it is interesting, how does COPY perform in
that case.


Alexey