Re: Using miss-spelled hint changes explain plan ...

This makes sense. Imagine the problems if the CBO scanned for any valid hint in comment code after SELECT. A developer inserts /*+ Removed the following hint due to poor performance FULL(A) */ to indicate that the hint was causing performance problems. Lo and behold, the problems continue.

Daniel

Wolfgang Breitling wrote:

> Maybe not so much an undocumented feature than documentation that is open
> to interpretation. It is documented that the optimizer will ignore
> malformed hints. It is just not made clear that everything after that
> malformed hint up to the end of the comment is ignored as well.
>
> BTW, you mis-spelled "miss-spelled" :-)
>

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Author: Daniel Fink
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