Remove old QCs when importing final shots.

When final shots are inserted, updated or
deleted, the corresponding QC info (which
is always held in raw_shots.meta->'qc')
is deleted.

If applicable, it will be recreated on the
next QC run.

etc/db/schema-template.sql

@@ -122,6 +122,34 @@ All values are returned as being of type "text" and need casting before use.
 ';
 
 
+--
+-- Name: clear_shot_qc(); Type: FUNCTION; Schema: _SURVEY__TEMPLATE_; Owner: postgres
+--
+
+CREATE FUNCTION _SURVEY__TEMPLATE_.clear_shot_qc() RETURNS trigger
+    LANGUAGE plpgsql
+    AS $$
+DECLARE
+pid text;
+BEGIN
+
+-- Bail out early if there are no actual changes
+IF TG_OP = 'UPDATE' AND NOT (NEW.* IS DISTINCT FROM OLD.*) THEN
+RETURN NULL;
+END IF;
+
+UPDATE raw_shots
+SET meta = meta #- '{qc}'
+WHERE (sequence = NEW.sequence OR sequence = OLD.sequence)
+AND (point = NEW.point OR point = OLD.point);
+
+RETURN NULL;
+END;
+$$;
+
+
+ALTER FUNCTION _SURVEY__TEMPLATE_.clear_shot_qc() OWNER TO postgres;
+
 --
 -- Name: events_timed_seq_match(); Type: FUNCTION; Schema: _SURVEY__TEMPLATE_; Owner: postgres
 --
@@ -1528,6 +1556,13 @@ CREATE TRIGGER events_timed_seq_match_tg AFTER INSERT OR UPDATE ON _SURVEY__TEMP
 CREATE TRIGGER events_timed_tg BEFORE INSERT OR UPDATE ON _SURVEY__TEMPLATE_.events_timed FOR EACH ROW EXECUTE FUNCTION _SURVEY__TEMPLATE_.assoc_tstamp();
 
 
+--
+-- Name: final_shots final_shots_qc_tg; Type: TRIGGER; Schema: _SURVEY__TEMPLATE_; Owner: postgres
+--
+
+CREATE TRIGGER final_shots_qc_tg AFTER INSERT OR DELETE OR UPDATE ON _SURVEY__TEMPLATE_.final_shots FOR EACH ROW EXECUTE FUNCTION _SURVEY__TEMPLATE_.clear_shot_qc();
+
+
 --
 -- Name: events_seq_labels events_seq_labels_id_fkey; Type: FK CONSTRAINT; Schema: _SURVEY__TEMPLATE_; Owner: postgres
 --