Optimized notifications.getorder_includestatus and added indexes (#279)

* Optimized notifications.getorder_includestatus and added indexes

* Added newline at the end of the file

---------

Co-authored-by: Henning Normann <[email protected]>

src/Altinn.Notifications.Persistence/Migration/v0.09/01-setup-indexes.sql

@@ -0,0 +1,4 @@
+CREATE INDEX IF NOT EXISTS notifications_sendersreference_creatorname ON notifications.orders (sendersreference, creatorname);
+CREATE INDEX IF NOT EXISTS notifications_emailnotifications_orderid ON notifications.emailnotifications (_orderid) include (_id, result);
+CREATE INDEX IF NOT EXISTS notifications_emailnotifications_result ON notifications.emailnotifications (result) include (_id, _orderid);
+CREATE INDEX IF NOT EXISTS notifications_emailtexts_orderid ON notifications.emailtexts (_orderid);

src/Altinn.Notifications.Persistence/Migration/v0.09/02-setup-functions.sql

@@ -0,0 +1,46 @@
+DROP FUNCTION IF EXISTS notifications.getorder_includestatus(_alternateid UUID, _creatorname TEXT);
+CREATE OR REPLACE FUNCTION notifications.getorder_includestatus(_alternateid UUID, _creatorname TEXT)
+RETURNS TABLE (
+    alternateid UUID,
+    creatorname TEXT,
+    sendersreference TEXT,
+    created TIMESTAMPTZ,
+    requestedsendtime TIMESTAMPTZ,
+    processed TIMESTAMPTZ,
+    processedstatus orderprocessingstate,
+    generatedEmailCount BIGINT,
+    succeededEmailCount BIGINT
+)
+LANGUAGE 'plpgsql'
+AS $BODY$
+DECLARE
+    _target_orderid INTEGER;
+    _succeededEmailCount BIGINT;
+    _generatedEmailCount BIGINT;
+BEGIN
+    SELECT _id INTO _target_orderid FROM notifications.orders
+        WHERE orders.alternateid = _alternateid AND orders.creatorname = _creatorname;
+
+    SELECT
+        SUM(CASE WHEN result = 'Succeeded' THEN 1 ELSE 0 END), COUNT(1) AS generatedEmailCount
+        INTO _succeededEmailCount, _generatedEmailCount
+        FROM notifications.emailnotifications
+        WHERE _orderid = _target_orderid;
+
+    RETURN QUERY
+    SELECT 
+        orders.alternateid,
+        orders.creatorname,
+        orders.sendersreference,
+        orders.created,
+        orders.requestedsendtime,
+        orders.processed,
+        orders.processedstatus,
+        _generatedEmailCount,
+        _succeededEmailCount
+    FROM
+        notifications.orders AS orders
+    WHERE 
+        orders.alternateid = _alternateid;
+END;
+$BODY$;