-- Höchste erreichte kirchliche Hierarchiestufe (Laufbahn), nicht zurücksetzen bei Amtsverlust.
-- Siehe docs/FALUKANT_CHURCH_DAEMON.md

ALTER TABLE falukant_data.character
    ADD COLUMN IF NOT EXISTS highest_church_hierarchy_ever SMALLINT;

COMMENT ON COLUMN falukant_data.character.highest_church_hierarchy_ever IS
    'Max. hierarchy_level (church_office_type) jemals erreicht; für Bewerbungsvoraussetzungen neben aktuellem Amt';

UPDATE falukant_data.character c
SET highest_church_hierarchy_ever = sub.mh::smallint
FROM (
    SELECT co.character_id AS cid,
           MAX(cot.hierarchy_level)::int AS mh
      FROM falukant_data.church_office co
      JOIN falukant_type.church_office_type cot ON cot.id = co.office_type_id
     GROUP BY co.character_id
) sub
WHERE c.id = sub.cid
  AND (c.highest_church_hierarchy_ever IS NULL OR c.highest_church_hierarchy_ever < sub.mh);