Claudio Freire wrote:
> On Wed, Jul 9, 2014 at 6:16 PM, Alvaro Herrera <alvhe...@2ndquadrant.com> 
> wrote:
> > Another thing I noticed is that version 8 of the patch blindly believed
> > the "pages_per_range" declared in catalogs.  This meant that if somebody
> > did "alter index foo set pages_per_range=123" the index would
> > immediately break (i.e. return corrupted results when queried).  I have
> > fixed this by storing the pages_per_range value used to construct the
> > index in the metapage.  Now if you do the ALTER INDEX thing, the new
> > value is only used when the index is recreated by REINDEX.
> 
> This seems a lot like parameterizing.

I don't understand what that means -- care to elaborate?

> So I guess the only thing left is to issue a NOTICE when said alter
> takes place (I don't see that on the patch, but maybe it's there?)

That's not in the patch.  I don't think we have an appropriate place to
emit such a notice.

-- 
Álvaro Herrera                http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services


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