Those row estimates are pretty far off.
Standard indexes and partial indexes don't get custom statistics created on them, but functional indexes do. I wonder if a small function needs_backup( shouldbebackedup, backupperformed ) and an index created on that function would nicely alleviate the pain. I would expect PG12 and extended statistics of type MCVs would bypass the need for that work around though.
Standard indexes and partial indexes don't get custom statistics created on them, but functional indexes do. I wonder if a small function needs_backup( shouldbebackedup, backupperformed ) and an index created on that function would nicely alleviate the pain. I would expect PG12 and extended statistics of type MCVs would bypass the need for that work around though.
