Revert optimized logbook SQL (#12762)

homeassistant/components/logbook.py

@@ -47,11 +47,6 @@ CONFIG_SCHEMA = vol.Schema({
     }),
 }, extra=vol.ALLOW_EXTRA)
 
-ALL_EVENT_TYPES = [
-    EVENT_STATE_CHANGED, EVENT_LOGBOOK_ENTRY,
-    EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP
-]
-
 GROUP_BY_MINUTES = 15
 
 CONTINUOUS_DOMAINS = ['proximity', 'sensor']
@@ -271,18 +266,15 @@ def humanify(events):
 
 def _get_events(hass, config, start_day, end_day):
     """Get events for a period of time."""
-    from homeassistant.components.recorder.models import Events, States
+    from homeassistant.components.recorder.models import Events
     from homeassistant.components.recorder.util import (
         execute, session_scope)
 
     with session_scope(hass=hass) as session:
-        query = session.query(Events).order_by(Events.time_fired) \
-            .outerjoin(States, (Events.event_id == States.event_id))  \
-            .filter(Events.event_type.in_(ALL_EVENT_TYPES)) \
-            .filter((Events.time_fired > start_day)
-                    & (Events.time_fired < end_day)) \
-            .filter((States.last_updated == States.last_changed)
-                    | (States.last_updated.is_(None)))
+        query = session.query(Events).order_by(
+            Events.time_fired).filter(
+                (Events.time_fired > start_day) &
+                (Events.time_fired < end_day))
         events = execute(query)
     return humanify(_exclude_events(events, config))