I noticed a few days ago that my backups are about 100MB smaller than what they used to be (now ~230MB instead of ~330MB). home-assistant_v2.db appears to be the reason why. For some reason it has shrunk by nearly 2GB. Anything to be worried about here?
Thanks,
->g.
Probably because you recently updated your HA. It’s mentioned in the release notes. Check it out!
Thanks, this appears to be it.
From one of last month’s updates:
home-assistant:dev ← bdraco:state_attr_table_poc
opened 03:08AM - 16 Mar 22 UTC
## Breaking change
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Attributes are now stored in a `state_attributes` table, which stores the same set of attributes once (many to one relationship).
Attributes represent roughly 21% of the database size. (28% if you exclude statistics)
On a few of my production instances attributes ranged from 82-88% duplicates of another set of attributes.
I expect this will reduce the size of the database between 13-16% on average
My CPU history graphs which have a lot of duplicate attributes now load faster in unscientific testing. (134ms instead of 385ms). I expect this to speed up other queries as we now mix in the attributes after filtering most of the time so it saves a bit of I/O as well in some cases.
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