Re: Adding foreign key performance

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От Bruce Momjian
Тема Re: Adding foreign key performance
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Msg-id 200310281913.h9SJDvN28840@candle.pha.pa.us
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Ответ на Re: Adding foreign key performance  ("John K. Herreshoff" <jkherr@centurytel.net>)
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John K. Herreshoff wrote:
> That did not take long... about 13 minutes to reload the tables from an *.mdb
> file, and a second or two for each of the 'alter table foo add foreign
> key...' lines.  I tried to drop a 'referencing' table, and the database would
> not let me, said that something depended on it ;o)
>
> Is there some way to name the foreign key so that it can be dropped later, or
> is there a way to drop the foreign key using information already in the
> database?

You have to use ALTER TABLE DROP CONSTRAINT perhaps.

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