Copy command and duplicate items (Support Replace?)

Поиск
Список
Период
Сортировка
От Ow Mun Heng
Тема Copy command and duplicate items (Support Replace?)
Дата
Msg-id 1187059833.23507.51.camel@neuromancer.home.net
обсуждение исходный текст
Ответы Re: Copy command and duplicate items (Support Replace?)
Список pgsql-general
Hi,

Writing a script to pull data from SQL server into a flat-file (or just
piped in directly to PG using Perl DBI)

Just wondering if the copy command is able to do a replace if there are
existing data in the Db already. (This is usually in the case of updates
to specific rows and there be a timestamp indicating it has been changed
etc.)

In MySQL, the mysqlimport util has the --replace function which will
replace the data if there is any event of a duplicate.

Does PG support this?



В списке pgsql-general по дате отправления:

Предыдущее
От: "Lim Berger"
Дата:
Сообщение: Re: "Out of memory" errors..
Следующее
От: Tony Caduto
Дата:
Сообщение: Re: Postgresql INSERT speed (how to improve performance)?