1. Is KNNGIST intended to work if there's more than one pathkey? If
so, how? Example:
SELECT * FROM tab ORDER BY this_point- '(0,0)', this_point- '(1,1)'
Why not, if distances from two points to '(0,0)' are equal, it's need to compare
distances to '(1,1)'. Nothing new here, KNN-GiST
I'm gradually slogging my way through the KNNGIST patches which were
posted here:
http://archives.postgresql.org/pgsql-hackers/2010-07/msg01183.php
I have a couple of conceptual questions.
1. Is KNNGIST intended to work if there's more than one pathkey? If
so, how? Example:
SELECT * FROM tab
