Re: Isolation levels READ UNCOMMITTED and REPEATABLE READ - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: Isolation levels READ UNCOMMITTED and REPEATABLE READ
Date
Msg-id 200310260257.h9Q2vt425828@candle.pha.pa.us
Whole thread Raw
In response to Re: Isolation levels READ UNCOMMITTED and REPEATABLE READ  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
Added to TODO:
* Allow more ISOLATION LEVELS to be accepted, but issue a  warning for them


---------------------------------------------------------------------------

Tom Lane wrote:
> Peter Eisentraut <peter_e@gmx.net> writes:
> > I think we could allow users to set the transaction isolation level to
> > READ UNCOMMITTED or REPEATABLE READ and internally behave like READ
> > COMMITTED or SERIALIZABLE, respectively.  The SQL standard seems to allow
> > this:
> 
> My reading is that the spec *requires* this.  We have not done it
> because there was some feeling that people would be confused if the
> isolation levels appeared to exist but didn't really work as they
> expected.  But a notice or something could help address that concern.
> 
>             regards, tom lane
> 
> ---------------------------(end of broadcast)---------------------------
> TIP 3: if posting/reading through Usenet, please send an appropriate
>       subscribe-nomail command to majordomo@postgresql.org so that your
>       message can get through to the mailing list cleanly
> 

--  Bruce Momjian                        |  http://candle.pha.pa.us pgman@candle.pha.pa.us               |  (610)
359-1001+  If your life is a hard drive,     |  13 Roberts Road +  Christ can be your backup.        |  Newtown Square,
Pennsylvania19073
 


pgsql-hackers by date:

Previous
From: Bruce Momjian
Date:
Subject: Re: Call for port reports
Next
From: Bruce Momjian
Date:
Subject: Re: 7.4 compatibility question