> The _other_ way it's going to be used is as a stealthy 
> alteration to regular behaviour, to solve a particular nasty 
> performance problem that happens to result on a given day.  
> And every single time I've seen anything like that done, the 
> long term effect is always monstrous.

Funny, I very seldom use Informix hints (mostly none, maybe 2 per
but I have yet to see one that backfires on me, even lightly.
I use hints like: don't use that index, use that join order, use that

Can you give us an example that had such a monstrous effect in Oracle,
other than that the hint was a mistake in the first place ?


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