Re: Inconsistence in transaction isolation docs - Mailing list pgsql-general

From Peter Eisentraut
Subject Re: Inconsistence in transaction isolation docs
Date
Msg-id 200710161357.35988.peter_e@gmx.net
Whole thread Raw
In response to Inconsistence in transaction isolation docs  (Nico Sabbi <nsabbi@officinedigitali.it>)
List pgsql-general
Am Dienstag, 16. Oktober 2007 schrieb Nico Sabbi:
> to me the above sentence sounds inconsistent: it's asserting that both
> 1) and 2) apply:
>
> 1) it never sees ... changes committed during query execution by
> concurrent transactions

What this is supposed to mean is that you don't see changes while your own
query runs.

>
> 2) Notice that two successive SELECT commands can see different data,
> even though they
> are within a single transaction, if other transactions commit changes
> during execution
> of the first SELECT

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

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