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Message Posted: Wed, 19 Feb 2003 @ 03:16:39 GMT


     
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Subj:   Re: Info on and migration to V2R5
 
From:   McCall, Glenn D

Hi Glenn, I was wondering if you had an example of what you meant by your derived table problem.

I have interpreted what you have said to mean that one of the following will fail on V2R5. And yet I have tried both queries on two V2R5 systems (a beta version and a GCA version) and both queries appear to work on both systems.

Also I am interested in the sorts of performance issues you had. Initial impressions are that our applications appear to run a whole lot faster on V2R5 than V2R4.0.3 and V2R4.1.3.

Multiload session establishment seems to be significantly faster on V2R5 (we haven't done large volumes of data yet - so can't make a real comment on overall mload performance)!

Is this what you mean by unspecified columns in the select?

select *
from (
    select *
    from (
        select *
        from x
        ) as dt_x
    ) as dt_x
;

All columns specified

select c1
from (
    select c1
    from (
        select c1
        from x
        ) as dt_x (c1)
    ) as dt_x (c1)

TIA

Glenn Mc



     
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