Re: TEMP segments

No, only the original SQL*Loader DIRECT=TRUE does that (adding blocks above HWM), which was introduced with v7.0.x...

Since then, all direct-path (a.k.a. append) operations (including SQL*Loader DIRECT=TRUE PARALLEL=TRUE, parallel CREATE INDEX, parallel CREATE TABLE AS SELECT, and INSERT /*+ APPEND PARALLEL */, etc) have created temporary segments for each parallel execution "slave" process which will be merged into eventual segment. As Anjo commented, it makes for really fast and easy rollback; just let SMON clean up the temporary segments...

...don't know if it's ever really been documented; I did include this description in our books on data warehousing in 1997 and 1999...

• Original Message ----- To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Wednesday, November 20, 2002 4:08 AM

> Tim -- that adds new blocks above the HWM?
>
> I wonder if any command that adds new blocks (vs inserting rows into
> existing ones) automatically creates the new blocks as TEMP segments.
> Logically it makes sense but I wonder if it's documented anywhere.
>
>
>
> --- Tim Gorman <Tim_at_SageLogix.com> wrote:
> > ...as does INSERT /*+ APPEND PARALLEL */...
> > ----- Original Message -----
> > From: Fink, Dan
> > To: Multiple recipients of list ORACLE-L
> > Sent: Tuesday, November 19, 2002 1:15 PM
> > Subject: TEMP segments
> >
> >
> > I just found a new command that creates TEMP segments. It is well
> > known that index creations first create the index segments as TEMP
> > segments then 'convert' them to index segments upon completion. What
> > I just found out (thanks to a failed operation) is that 'CREATE TABLE
> > AS SELECT' (ctas) also creates the segments as TEMP first.
> >
> > Dan Fink
> >
>
>
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