pub const MIN_PAGES_FOR_AUTO_VACUUM: u32 = 16;Expand description
Auto-VACUUM (SQLR-10) does not fire on databases below this many
pages. The 4 KiB page size makes 16 pages = 64 KiB — small enough
that the cost of a full-file rewrite is negligible if the user
genuinely wants it (manual VACUUM; still works), but large enough
that single-table churn doesn’t blow past the threshold and trigger
a noisy compact every few statements.