Re: different plan with insert/select

From: Jonathan Lewis <jlewisoracle_at_gmail.com>
Date: Wed, 24 Jun 2020 09:47:20 +0100
Message-ID: <CAGtsp8kiH+TTSvxRKvP_tRMXDj264H4tpf-q78tUGRg0TiiUTA_at_mail.gmail.com>



There's always the distributed query problem. I've probably got a couple of other cases logged somewhere - will check later and follow up

Which version of Oracle ?

Regards
Jonathan Lewis

On Wed, Jun 24, 2020 at 8:53 AM Noveljic Nenad <nenad.noveljic_at_vontobel.com> wrote:

> I’m getting a different execution plan for select if it runs in
> insert/select statement. It’s the same select - embedded in an insert
> statement.
>
>
>
> There are much less join order permutations with insert/select than with
> select. The initial join order 1 is different.
>
>
>
> I’m working on finding out what exactly triggers the different behavior.
> The original statement is rather complex, but I'm working on a simple,
> generic test case.
>
>
>
> Is anybody aware of possible causes?
>
>
>
> Best regards,
>
>
>
> Nenad
>
>
>
> https://nenadnoveljic.com/blog
>
>
>
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Received on Wed Jun 24 2020 - 10:47:20 CEST

Original text of this message