• From: "Jared Still" <jkstill@xxxxxxxxx>
  • To: "Elliott, Patrick" <patrick.elliott@xxxxxxxxxxxxx>
  • Date: Wed, 23 Apr 2008 13:51:51 -0700

Ah, ok.  Didn't get that from your post.

Many people have relied on this 'feature' in the past, only to see it
with a new version.

On Wed, Apr 23, 2008 at 1:40 PM, Elliott, Patrick <
patrick.elliott@xxxxxxxxxxxxx> wrote:

>  That is correct.  My point is that what Rob is calling wrong results is
> actually just unexpected results based on invalid assumptions.
> Pat
>  ------------------------------
> *From:* Jared Still [mailto:jkstill@xxxxxxxxx]
> *Sent:* Wednesday, April 23, 2008 3:34 PM
> *To:* Elliott, Patrick
> *Cc:* Rob.Dempsey@xxxxxxxxxx; oracle-l@xxxxxxxxxxxxx
> *Subject:* Re: HASH GROUP BY
> On Wed, Apr 23, 2008 at 12:20 PM, Elliott, Patrick <
> patrick.elliott@xxxxxxxxxxxxx> wrote:
> >  Now I understand what you mean by buggy.  It no longer sorts the rows.
> > If you have code that relies on a group by being in sorted order, then the
> > code will no longer work.  If you have had to disable this in the past to
> > get correct results, then you will need to continue disabling it
> > indefinitely.  The only way to fix it and reenable the hashing group by is
> > to change the code.
> >
> >
> GROUP BY has never been documented to provide rows in sorted order.
> From the docs:
> The GROUP BY clause groups rows but does not guarantee the order of the
> > result set. To order the groupings, use the ORDER BY clause.
> >
> --
> Jared Still
> Certifiable Oracle DBA and Part Time Perl Evangelist
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Jared Still
Certifiable Oracle DBA and Part Time Perl Evangelist

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