Re: a couple of newbie question - deferrable, varchar vs text, 2 dbs

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От Peter Eisentraut
Тема Re: a couple of newbie question - deferrable, varchar vs text, 2 dbs
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Msg-id 200704050057.10178.peter_e@gmx.net
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Ответ на a couple of newbie question - deferrable, varchar vs text, 2 dbs  ("Sergei Shelukhin" <realgeek@gmail.com>)
Ответы Re: a couple of newbie question - deferrable, varchar vs text, 2 dbs
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Sergei Shelukhin wrote:
> 1) Do I understand it correctly that cross database queries are not
> possible?

Yes.

> 2) What's the difference between unlimited length varchar and text
> columns?

Mostly only the spelling.

> 3) Will adding "deferrable" to FKs that reference very large tables
> speed up insert performance for individual inserts? for multiple
> inserts within a single transaction?

I think you can answer that yourself with a quick test.

--
Peter Eisentraut
http://developer.postgresql.org/~petere/

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