lancom query

Schema/lancom-throughput-query.sql

@@ -0,0 +1,25 @@
+select 
+  UNIX_TIMESTAMP(g1.ts) as time_sec,
+  g1.description as metric,
+  non_negative_value(
+  ((g1.value - (select g2.value from grafana_v g2 where g2.ts < g1.ts and g2.description = metric order by ts desc limit 1)) / (UNIX_TIMESTAMP(g1.ts) - UNIX_TIMESTAMP((select g3.ts from grafana_v g3 where g3.ts < g1.ts and g3.description = metric order by ts desc limit 1)))),
+  ((4294967296 + g1.value - (select g2.value from grafana_v g2 where g2.ts < g1.ts and g2.description = metric order by ts desc limit 1)) / (UNIX_TIMESTAMP(g1.ts) - UNIX_TIMESTAMP((select g3.ts from grafana_v g3 where g3.ts < g1.ts and g3.description = metric order by ts desc limit 1))))
+  ) as value
+from grafana_v g1
+where g1.description = 'VDSL In-gateway'
+order by g1.ts asc;
+
+
+
+delimiter //
+create or replace function non_negative_value(a double, b double) returns double
+begin
+  if (a >= 0) then
+    return a;
+  else
+    return b;
+  end if;
+end//
+delimiter ;
+
+grant execute on function statsdb.non_negative_value to 'grafana'@'%';

Schema/view.sql

@@ -11,3 +11,18 @@ create or replace view grafana_v as
           di.id = ddi.dataitem and
           da.devicedataitem = ddi.id;
 
+
+create or replace view grafana_plain_v as
+  select concat(di.description, '-', de.description) as description,
+         da.ts as ts,
+         da.value as value,
+         de.description as device
+    from device_t de,
+         dataitem_t di,
+         devicedataitem_t ddi,
+         collecteddata_t da
+    where de.id = ddi.device and
+          di.id = ddi.dataitem and
+          da.devicedataitem = ddi.id;
+
+