Renommer `normalvalue.computedvalue` en `normalvalue.median`. refs www#60

sql/schema.functions.sql

@@ -14,11 +14,11 @@ i.id AS "indicator",
 s.cell,
 s.enddate AS date,
 s.rawvalue AS computedvalue,
-COALESCE(s.rawvalue - n.computedvalue, 0) AS comparedvalue
+COALESCE(s.rawvalue - n."median", 0) AS comparedvalue
 FROM %1$s AS s
 	JOIN agrometinfo."indicator" AS i ON i.code=s."indicator"
 	JOIN agrometinfo."period" AS p ON p.id=i."period" AND p.phase=s.phase
-	LEFT JOIN agrometinfo.normalvalue AS n ON n."indicator"=i.id AND n.cell =s.cell AND n.doy = EXTRACT(doy FROM s.enddate)
+	LEFT JOIN agrometinfo.normalvalue AS n ON n."indicator"=i.id AND n.cell=s.cell AND n.doy = EXTRACT(doy FROM s.enddate)
 WHERE s.category ='indicator'
 ORDER BY s.enddate, s.cell , i.id
 ON CONFLICT ON CONSTRAINT "UK_dailyvalue" DO