Обсуждение: pg_dump only certain rows

Hello again,

I want to normalize an existing table.

Is there a way to drop the unwanted columns in my original table?

SQL-alter does not seem to do it, neither can I specify the columns used in
pd_dump. Or have I overlooked something?

Thanks,

Stefan

On Sat, 10 Feb 2001 16:11:00 Stefan Waidele jun. wrote:
>I want to normalize an existing table.
>
>Is there a way to drop the unwanted columns in my original table?
>
>SQL-alter does not seem to do it, neither can I specify the columns used in
>
>pd_dump. Or have I overlooked something?

Select the rows and columns you want directly into a new table, then drop
the old table:

SELECT column1,column2 INTO new_table FROM old_table WHERE
filter_conditions;

Tony
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