From f27d73fc3461f8d3fb36a829504ed5ec6d0d253a Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@koston.org>
Date: Sun, 19 Mar 2023 16:05:07 -1000
Subject: [PATCH] Remove legacy event lookups from logbook (#89945)

Events recorded with Home Assistant 2022.5.x or older will no
longer display context information in the logbook
---
 .../components/logbook/queries/all.py         | 16 +----------
 .../components/logbook/queries/common.py      | 28 -------------------
 2 files changed, 1 insertion(+), 43 deletions(-)

diff --git a/homeassistant/components/logbook/queries/all.py b/homeassistant/components/logbook/queries/all.py
index 5311d5a9d6e..8c37bf22da9 100644
--- a/homeassistant/components/logbook/queries/all.py
+++ b/homeassistant/components/logbook/queries/all.py
@@ -12,12 +12,7 @@ from homeassistant.components.recorder.db_schema import (
     States,
 )
 
-from .common import (
-    apply_states_filters,
-    legacy_select_events_context_id,
-    select_events_without_states,
-    select_states,
-)
+from .common import apply_states_filters, select_events_without_states, select_states
 
 
 def all_stmt(
@@ -33,9 +28,6 @@ def all_stmt(
         lambda: select_events_without_states(start_day, end_day, event_types)
     )
     if context_id_bin is not None:
-        # Once all the old `state_changed` events
-        # are gone from the database remove the
-        # _legacy_select_events_context_id()
         stmt += lambda s: s.where(Events.context_id_bin == context_id_bin).union_all(
             _states_query_for_context_id(
                 start_day,
@@ -43,12 +35,6 @@ def all_stmt(
                 # https://github.com/python/mypy/issues/2608
                 context_id_bin,  # type:ignore[arg-type]
             ),
-            legacy_select_events_context_id(
-                start_day,
-                end_day,
-                # https://github.com/python/mypy/issues/2608
-                context_id_bin,  # type:ignore[arg-type]
-            ),
         )
     else:
         if events_entity_filter is not None:
diff --git a/homeassistant/components/logbook/queries/common.py b/homeassistant/components/logbook/queries/common.py
index c63bb30eb6c..08bf1b8ab9b 100644
--- a/homeassistant/components/logbook/queries/common.py
+++ b/homeassistant/components/logbook/queries/common.py
@@ -166,34 +166,6 @@ def select_states() -> Select:
     )
 
 
-def legacy_select_events_context_id(
-    start_day: float, end_day: float, context_id_bin: bytes
-) -> Select:
-    """Generate a legacy events context id select that also joins states."""
-    # This can be removed once we no longer have event_ids in the states table
-    return (
-        select(
-            *EVENT_COLUMNS,
-            literal(value=None, type_=sqlalchemy.String).label("shared_data"),
-            *STATE_COLUMNS,
-            NOT_CONTEXT_ONLY,
-        )
-        .outerjoin(States, (Events.event_id == States.event_id))
-        .where(
-            (States.last_updated_ts == States.last_changed_ts)
-            | States.last_changed_ts.is_(None)
-        )
-        .where(_not_continuous_entity_matcher())
-        .outerjoin(
-            StateAttributes, (States.attributes_id == StateAttributes.attributes_id)
-        )
-        .outerjoin(StatesMeta, (States.metadata_id == StatesMeta.metadata_id))
-        .outerjoin(EventTypes, (Events.event_type_id == EventTypes.event_type_id))
-        .where((Events.time_fired_ts > start_day) & (Events.time_fired_ts < end_day))
-        .where(Events.context_id_bin == context_id_bin)
-    )
-
-
 def apply_states_filters(sel: Select, start_day: float, end_day: float) -> Select:
     """Filter states by time range.