Re: rename primary key
От | Guillaume Lelarge |
---|---|
Тема | Re: rename primary key |
Дата | |
Msg-id | 4B604B54.7010905@lelarge.info обсуждение исходный текст |
Ответ на | Re: rename primary key (Seb <spluque@gmail.com>) |
Список | pgsql-sql |
Le 15/01/2010 17:13, Seb a écrit : > On Fri, 15 Jan 2010 07:35:17 +0100, > Guillaume Lelarge <guillaume@lelarge.info> wrote: > > [...] > >> Primary keys are constraints. They are enforced with an index, but >> actually they are constraints. So we put them on the constraints >> nodes. > >> There is the same behaviour for unique constraints. > > Thanks. Would there be any problem with listing the index used to > enforce the primary key constraint in the Indexes node to let us know of > its existence? In fact, psql does report it with the meta-command \d. > It was somewhat confusing to see Indexes(0), and then having to rename > an index to rename a primary key constraint. > Sorry, forgot to answer this mail. It was asked a few times before, and AFAICT the answer is still the same. It is a constraint before being an index. The fact that it is also an index is an implementation detail. I understand this is confusing. -- Guillaume.http://www.postgresqlfr.orghttp://dalibo.com
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