--On 1. Mai 2015 11:30:51 -0700 Tom Lane <t...@sss.pgh.pa.us> wrote:
> No. The non-parameterized paths for a given relation must all have the > same rowcount estimates; otherwise the path comparison logic fails > fundamentally. Another way to look at it is that every correct path > will yield the same number of rows in reality; so it would be wrong to > give a path that makes use of a partial index a rowcount advantage over > a path that is not using the partial index but nonetheless is enforcing > exactly the same set of scan restriction clauses. Thanks for the explanation. -- Thanks Bernd -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers