Method nnz

nodedb-array/src/tile/sparse_tile.rs:162–164

Count of live (non-sentinel) rows. Used for MBR statistics and predicate-pushdown decisions. Sentinel rows are excluded. Do not use this value as a row-iteration bound.** Iteration must cover sentinel rows so callers can observe Tombstone / GdprErased markers when applying bitemporal visibility rules — use [`row_count`](Self::row_count) and filter with [`row_kind`](Self::row_kind) instead.

(&self)

    /// [`row_count`](Self::row_count) and filter with
    /// [`row_kind`](Self::row_kind) instead.
    pub fn nnz(&self) -> u32 {
        self.mbr.nnz
    }

    /// Total physical row count including sentinel (Tombstone / GdprErased)
    /// rows. Use this as the upper bound when iterating over rows; check