Alan Bourke wrote:
> Given a table STRAN with a unique non-filtered index on numeric field
> 'id' why would the following be unoptimised according to sys(3054) ?
>
> Update stran ;
> set stran.st_pgimailed = Iif(curTransactions.st_pgiticked, ldTime,
> {/}) ;
> where stran.id = lnID
>
>
> Note:Removing the IIF() and replacing with a discrete date makes no
> difference.
>
Not sure if the unique bit has anything to do with it. Have you tried
adding another index (not unique) to it to see if it will optimise
then. Can't find anything in the help saying unique is not optimisable
but it's worth trying.
Peter
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