Re: Re: ALTER DROP COLUMN
От | Len Morgan |
---|---|
Тема | Re: Re: ALTER DROP COLUMN |
Дата | |
Msg-id | 016901c09542$c9c53a60$0908a8c0@H233.bstx.cc обсуждение исходный текст |
Ответ на | ALTER DROP COLUMN ("ross::barna" <rbarna@neochi.com>) |
Список | pgsql-general |
>So how is this useful for anything beyond a toy database? > >This inability to drop a column makes it hard to follow an "extreme >programming" style of development, where one designs only as much into >the database schema as is needed at the moment (DTSTTCPW, YAGNI). >When I do that I often find that I need to drop columns (in favor of >other columns of different types) as I evolve the schema to support >ever more complex applications. PostgreSQL makes this a bit harder >than it needs to be. I would content that any moderately complex database design that starts at the keyboard instead of a pad of paper (i.e., DESIGNED) is going to have more problems than a "toy" database. Postgres is used in many "real" applications but more than likely they were thought out and designed before committing to tables. len morgan
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