* Prebake common history queries
The python overhead of to construct
the queries exceeded the database overhead. We now
prebake the queries that get frequently polled.
This reduces the time it takes to update history_stats
sensors and can make quite a difference if there
are a lot of them.
When using the mini-graph-card card, all the entities
on the card being graphed are queried every few seconds
for new states. Previously this would tie up the database if there
are lot of these graphs in the UI.
* Update homeassistant/components/history/__init__.py
Co-authored-by: Paulus Schoutsen <paulus@home-assistant.io>
* Update homeassistant/components/history/__init__.py
Co-authored-by: Paulus Schoutsen <paulus@home-assistant.io>
* cache entity_filter in the lambda
* switch to yield
* Revert "switch to yield"
This reverts commit f8386f4940.
* get_states always returns a list
* query wasnt actually reusable so revert part of the breakout
Co-authored-by: Paulus Schoutsen <paulus@home-assistant.io>
b64ae55c66