Re: System indexes are never unique indexes( was RE: [HACKERS] mdnblocksis an amazing time sink in huge relations)

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> > 
> > > As I was afraid,2 tables of a same name could be made.
> > > After a short investigating,I found that system indexes are
> > > never unique indexes.
> > > Why ?
> > > Without duplicate index check,it's very difficult to prevent
> > > objects from having same name.
> > 
> > They certainly should be unique.
> >
> 
> All should be unique ?
> I don't know system indexes well.

Not sure.  I don't remember which ones.  I can take a look when I add
more indexes for 7.0.

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