do first transformation

dbddl/dataraw.sql

@@ -0,0 +1,18 @@
+DROP TABLE public.dataraw;
+
+CREATE TABLE public.dataraw
+(
+    id serial4 NOT NULL,
+    unit_name text NULL,
+    unit_type text NULL,
+    tool_name text NULL,
+    tool_type text NULL,
+    ip_centralina text NULL,
+    ip_gateway text NULL,
+    event_timestamp timestamp NULL,
+    battery_level float8 NULL,
+    temperature float8 NULL,
+    nodes_jsonb text NULL,
+    CONSTRAINT dataraw_pk PRIMARY KEY (id),
+    CONSTRAINT dataraw_unique UNIQUE (unit_name, tool_name, event_timestamp)
+);