Re: MySQL vs PostgreSQL.
От | Jeff Davis |
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Тема | Re: MySQL vs PostgreSQL. |
Дата | |
Msg-id | 200210111405.46467.list-pgsql-hackers@empires.org обсуждение исходный текст |
Ответ на | MySQL vs PostgreSQL. (Antti Haapala <antti.haapala@iki.fi>) |
Ответы |
Re: MySQL vs PostgreSQL.
|
Список | pgsql-hackers |
> They also state that they have more sophisticated ALTER TABLE... > > Only usable feature in their ALTER TABLE that doesn't (yet) exist in > PostgreSQL was changing column order (ok, the order by in table creation > could be nice), and that's still almost purely cosmetic. Anyway, I could > have used that command yesterday. Could this be added to pgsql. > I agree with your message except for that statement. MySQL alter table provides the ability to change column types and cast the records automatically. I remember that feature as really the only thing from MySQL that I've ever missed. Of course, it's not that wonderful in theory. During development you can easily drop/recreate the tables and reload the test data; during production you don't change the data types of your attributes. But in practice, during development it's handy sometimes. Regards,Jeff
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