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avoid the empty scan most cases

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This commit is contained in:
J. Nick Koston
2023-04-10 14:41:17 -10:00
parent 78387ef781
commit 48d5cc6e7f
1 changed files with 12 additions and 5 deletions
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17
homeassistant/components/recorder/history/modern.py
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@@ -143,11 +143,17 @@ def _significant_states_stmt(
# Since we are filtering on entity_id (metadata_id) we can avoid
# the join of the states_meta table since we already know which
# metadata_ids are in the significant domains.
stmt = stmt.filter(
States.metadata_id.in_(metadata_ids_in_significant_domains)
| (States.last_changed_ts == States.last_updated_ts)
| States.last_changed_ts.is_(None)
)
if metadata_ids_in_significant_domains:
stmt = stmt.filter(
States.metadata_id.in_(metadata_ids_in_significant_domains)
| (States.last_changed_ts == States.last_updated_ts)
| States.last_changed_ts.is_(None)
)
else:
stmt = stmt.filter(
(States.last_changed_ts == States.last_updated_ts)
| States.last_changed_ts.is_(None)
)
stmt = stmt.filter(States.metadata_id.in_(metadata_ids)).filter(
States.last_updated_ts > start_time_ts
)
@@ -248,6 +254,7 @@ def get_significant_states_with_session(
),
track_on=[
bool(single_metadata_id),
bool(metadata_ids_in_significant_domains),
bool(end_time_ts),
significant_changes_only,
no_attributes,