database: Add v_virtual_season

sql/v01/30.create.view.sql

@@ -5,6 +5,12 @@ FROM AT_gem g
     JOIN AT_ort o ON o.gkz = g.gkz
     JOIN AT_plz_dest p ON p.okz = o.okz;
 
+CREATE VIEW v_virtual_season AS
+SELECT year, max_kg_per_ha
+FROM season
+UNION
+SELECT strftime('%Y', date()) + 0, (SELECT max_kg_per_ha FROM season ORDER BY year DESC LIMIT 1);
+
 CREATE VIEW v_delivery AS
 SELECT p.year, p.did, p.dpnr,
        d.date, d.time, d.zwstid, d.lnr, d.lsnr,

sql/v01/31.create.bucket-view.sql

@@ -7,7 +7,7 @@ SELECT s.year, c.mgnr,
        CAST(ROUND(SUM(area) * COALESCE(t.min_kg_per_ha, 0) / 10000.0, 0) AS INTEGER) AS min_kg,
        CAST(ROUND(SUM(area) * MIN(COALESCE(a.max_kg_per_ha, s.max_kg_per_ha), s.max_kg_per_ha) / 10000.0, 0) AS INTEGER) AS max_kg,
        CAST(ROUND(SUM(area) * s.max_kg_per_ha / 10000.0, 0) AS INTEGER) AS upper_max_kg
-FROM season s, area_commitment c
+FROM v_virtual_season s, area_commitment c
     JOIN area_commitment_type t ON t.vtrgid = c.vtrgid
     LEFT JOIN wine_attribute a ON a.attrid = t.attrid
 WHERE (year_from IS NULL OR year_from <= s.year) AND

sql/v01/99.schema_version.sql

@@ -1,3 +1,3 @@
 
 -- This value MUST NOT be changed while other connections are open!
-PRAGMA schema_version = 1600;
+PRAGMA schema_version = 1700;