Re: Parallel query execution

2013/1/16 Stephen Frost <sfrost@snowman.net>:
> * Bruce Momjian (bruce@momjian.us) wrote:
>> I am not sure how a COPY could be easily parallelized, but I supposed it
>> could be done as part of the 1GB segment feature.  People have
>> complained that COPY is CPU-bound, so it might be very interesting to
>> see if we could offload some of that parsing overhead to a child.
>
> COPY can certainly be CPU bound but before we can parallelize that
> usefully we need to solve the problem around extent locking when trying
> to do multiple COPY's to the same table.

Probably update any related indexes and constraint checking should be
paralellized.

Regards

Pavel

>
>         Thanks,
>
>                 Stephen