Re: how to implement selectivity injection in postgresql

On 13-08-2014 15:28, Rajmohan C wrote:
> Yeah. I have to do it for my academic research. Is it available in
> catalogs? It is to be computed at run time from the predicates in the query
> right?
> 
The selectivity information is available at runtime. See
backend/optimizer/path/costsize.c.


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