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From Andrus Adamchik <and...@objectstyle.org>
Subject Re: split expressions
Date Wed, 13 Jan 2010 12:14:13 GMT

On Jan 13, 2010, at 2:02 PM, Andrus Adamchik wrote:

>
>  paintings.exhibits.start > $date1 AND paintings.exhibits.name like  
> 'X%'
> OR
>  paintings.exhibits.start < $date2 AND paintings.exhibits.name like  
> 'Y%'
> OR
>  paintings.exhibits.start = $date3 AND paintings.exhibits.name like  
> 'Z%'
>
> here you can't describe the desired behavior with "|", but can with  
> aliases:
>
>  a.start > $date1 AND a.name like 'X%'
> OR
>  b.start < $date2 AND b.name like 'Y%'
> OR
>  c.start = $date3 AND c.name like 'Z%'

Wonder if that's a bad example though, as the intended result can be  
obtained without splits... Need to think of a better one. Although the  
idea is that there can be cases when exact control over joins is needed.

Andrus


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