Re: psql and COPY BINARY

Поиск
Список
Период
Сортировка
От Andreas Pflug
Тема Re: psql and COPY BINARY
Дата
Msg-id 43A0541E.5020307@pse-consulting.de
обсуждение исходный текст
Ответ на Re: psql and COPY BINARY  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: psql and COPY BINARY  (Tom Lane <tgl@sss.pgh.pa.us>)
Список pgsql-hackers
Tom Lane wrote:
> Andreas Pflug <pgadmin@pse-consulting.de> writes:
> 
>>Examining why psql won't do sensible stuff with COPY BINARY, I realized 
>>that psql still uses PQgetline, which is marked obsolete since 7.4.
>>Is this intentional or just a "never reviewed because it works"? 
> 
> 
> There wasn't any obvious bang for the buck in rewriting it.

Well a non-binary copy could take as much as 5 times as much as a binary 
copy. I hit this when COPYing 1.5GB of data, getting a 6.6GB file. This 
made the 100MBit LAN connection a bottleneck.

I might post a patch to support BINARY in psql some day.

Regards,
Andreas


В списке pgsql-hackers по дате отправления:

Предыдущее
От: Christopher Browne
Дата:
Сообщение: Re: Cost-based optimizers
Следующее
От: Tom Lane
Дата:
Сообщение: Re: psql and COPY BINARY