Re: Fast COPY FROM based on batch insert

On 22/8/2022 11:44, Etsuro Fujita wrote:
> I think the latter is more consistent with the existing error context
> information when in CopyMultiInsertBufferFlush().  Actually, I thought
> this too, and I think this would be useful when the COPY FROM command
> is executed on a foreign table.  My concern, however, is the case when
> the command is executed on a partitioned table containing foreign
> partitions; in that case the input data would not always be sorted in
> the partition order, so the range for an error-occurring foreign
> partition might contain many lines with rows from other partitions,
> which I think makes the range information less useful.  Maybe I'm too
> worried about that, though.
I got your point. Indeed, perharps such info doesn't really needed to be 
included into the core, at least for now.

-- 
regards,
Andrey Lepikhov
Postgres Professional