CREATE TABLE #PFX#usersnet (
owner integer REFERENCES #PFX#users (code)
ON DELETE cascade ON UPDATE cascade, -- network owner
+ inher integer NULL REFERENCES #PFX#users (code)
+ ON DELETE cascade ON UPDATE cascade, -- inheriting user
target integer REFERENCES #PFX#users (code)
ON DELETE cascade ON UPDATE cascade, -- evaluated user
friend integer, -- friendship level
- skill integer, -- skill level
- trust integer, -- auth
+ -- 1"black", 2"unknown", 3"test", 4"friend", 5"bff"
+ skill float, -- skill level
+ trust float, -- auth
ctime timestamp DEFAULT now(), -- creation time
mtime timestamp DEFAULT to_timestamp(0) -- modification time
);
DROP INDEX IF EXISTS #PFX#usersnet_owner_idx;
DROP INDEX IF EXISTS #PFX#usersnet_target_idx;
DROP INDEX IF EXISTS #PFX#usersnet_owner_target_idx;
+DROP INDEX IF EXISTS #PFX#usersnet_owner_inher_idx;
+DROP INDEX IF EXISTS #PFX#usersnet_owner_target_inher_idx;
+
CREATE INDEX #PFX#usersnet_owner_idx ON #PFX#usersnet (owner);
CREATE INDEX #PFX#usersnet_target_idx ON #PFX#usersnet (target);
-CREATE UNIQUE INDEX #PFX#usersnet_owner_target_idx ON #PFX#usersnet (owner,target);
+CREATE INDEX #PFX#usersnet_owner_target_idx ON #PFX#usersnet (owner, target);
+CREATE INDEX #PFX#usersnet_owner_inher_idx ON #PFX#usersnet (owner,inher);
+CREATE UNIQUE INDEX #PFX#usersnet_owner_target_inher_idx ON #PFX#usersnet (owner, target, inher);
+
+DROP VIEW #PFX#usersnet_wideskill;
+CREATE VIEW #PFX#usersnet_wideskill
+ AS SELECT un.owner, ur.target, SUM(ur.skill * un.trust) / SUM(un.trust) as skill, count(*) as count
+ FROM bsk_usersnet AS un, bsk_usersnet AS ur
+ WHERE un.owner = 10101 -- owner is xxx
+ AND un.target = ur.owner AND un.friend >= 4 -- 'un' is, at least, our friend
+ GROUP BY un.owner, ur.target;
+DROP VIEW #PFX#usersnet_narrowskill;
+CREATE VIEW #PFX#usersnet_narrowskill
+ AS SELECT un.owner, ur.target, SUM(ur.skill * un.trust) / SUM(un.trust) as skill, count(*) as count
+ FROM bsk_usersnet AS un, bsk_usersnet AS ur -- 'un' primary records, 'ur' inheriting records
+ WHERE un.owner = 10101 -- owner is xxx
+ AND un.target = ur.owner AND un.friend = 5 -- 'un' is, at least, our friend
+ GROUP BY un.owner, ur.target;