On 6-4-2013 13:14, sabatierstephane wrote:

> i was thinging the same, but the using index it's just to "name" the index (i m sad) not to use another index :(
>
> "You must always provide a new name for the index. It is not possible to use pre-existing indices to enforce constraints."
>
> so the using index is useless in fact :(

Why don't you just drop the other index?

Mark
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Mark Rotteveel