generate characters with sane compile time/memory

horsegen/character.affinity2.sql

@@ -29,6 +29,16 @@ WITH uma_names AS (
 		LEFT JOIN relation_pairs rp ON pairs.id_a = rp.id_a AND pairs.id_b = rp.id_b
 		LEFT JOIN succession_relation sr ON rp.relation_type = sr.relation_type
 	GROUP BY pairs.id_a, pairs.id_b
+
+	UNION ALL
+	-- Reflexive cases.
+	SELECT
+		uma_names.id AS id_a,
+		uma_names.name AS name_a,
+		uma_names.id AS id_b,
+		uma_names.name AS name_b,
+		0 AS base_affinity
+	FROM uma_names
 )
 SELECT * FROM affinity
-ORDER BY id_a, id_b
+ORDER BY id_a, id_b