Tom Lane wrote:
> Stefan Kaltenbrunner <stefan(at)kaltenbrunner(dot)cc> writes:
>
>> samples % symbol name
>> 1933314 21.8884 LWLockAcquire
>> 1677808 18.9957 XLogInsert
>> 848227 9.6034 LWLockRelease
>> 414179 4.6892 DoCopy
>> 332633 3.7660 CopyReadLine
>> 266580 3.0181 UnpinBuffer
>> 221693 2.5099 heap_formtuple
>>
>
> I suppose Andrew didn't yet put in the hack to avoid WAL logging
> during the COPY commands. The LWLockAcquires are presumably
> blocking on WALInsertLock, given that XLogInsert is also right
> up there ...
>
>
>
Yes I did. That's what the --truncate-before-load switch does (or should
do).
cheers
andrew