Re: [HACKERS] pgsql is 75 times faster with my new index scan

[Hannu Krosing]

"Mikheev, Vadim" wrote:
> 
> Why not implement *true* CLUSTER?
> With cluster, all heap tuples will be in cluster index.
> 

What is *true* CLUSTER ?

'grep CLUSTER' over the latest SQL standards gives back nothing.


> > > The last step could be done in two ways. First by limiting
> > > number of indices for one table we can store coresponding
> > > indices' TIDs in each heap tuple. The update is then simple
> > > taking one disk write.
> > 
> > Why limit it ? One could just save an tid array in each tuple .
> 
> And update *entire* heap after addition new index?!

I guess that this should be done even for limited number of 
indices' TIDs in a heap tuple ?

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Hannu