Re: HOW 'VIEW' WORKS

From: Hans Forbrich <forbrich_at_tibalt.supernet.ab.ca>
Date: 1996/10/02
Message-ID: <325341F6.26BB_at_tibalt.supernet.ab.ca>#1/1


Danny Roosens wrote:
>
> HI,
>
> I don't agree :
>
> optimistaion is different when the view is written completely or used as a view
> when joining with tables;
>
> Indexes on seperate tables are not taken as one would exspect (V7.2)
>
> --

Checked it out on V7.1 ... and you're right. Different Explain Plans when using a view vs when manually simulating the view in the select.

It appears that (in my test case) the kernel resolves the view first and then optimizes the rest.

/Hans Received on Wed Oct 02 1996 - 00:00:00 CEST

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