INSERT INTO players (site_id, playername, cashhands, tourneyhands, playertype_id)
VALUES (-1, 'Global alias', 0, 0, 0)
RETURNING player_id;

INSERT INTO players (playername, pokersite_id, cashhands, tourneyhands, optimizationstatus, icon)
VALUES ('Global alias', -1, 0, 0, 0, 0)
RETURNING player_id;

INSERT INTO aliases 
SELECT 12345, p1.player_id
FROM players p1
WHERE p1.player_id NOT IN
(
	SELECT a1.player_id
	FROM aliases a1
	WHERE a1.aliasplayer_id = 12345
	-- to exclude players yet inserted
)
AND p1.player_id NOT IN
(	
	SELECT a2.player_id
	FROM players p2 JOIN aliases a2 ON p2.player_id = a2.aliasplayer_id
	WHERE p2.site_id = -1 and p2.playername = 'Hero'
	-- to exclude hero nicknames from the insert	
)
AND p1.site_id <> -1
-- to exclude other aliases
;

INSERT INTO aliases 
SELECT 12345, p1.player_id
FROM players p1
WHERE p1.player_id NOT IN
(
	SELECT a1.player_id
	FROM aliases a1
	WHERE a1.aliasplayer_id = 12345
	-- to exclude players yet inserted
)
AND p1.player_id NOT IN
(	
	SELECT a2.player_id
	FROM players p2 JOIN aliases a2 ON p2.player_id = a2.aliasplayer_id
	WHERE p2.pokersite_id = -1 and p2.playername = 'Hero'
	-- to exclude hero nicknames from the insert	
)
AND p1.pokersite_id <> -1
-- to exclude other aliases
;

-- ...all the previous code above...
AND p1.player_id < 5000;

-- ...all the previous code above...
AND p1.player_id >= 5000 AND p1.player_id < 10000;