pub fn append_edges(conn: &Connection, edges: &[GraphEdge]) -> Result<()>Expand description
Append many edges in a single transaction (INSERT OR IGNORE — duplicates
by ID or by the (source, target, relation) unique index are skipped).
Equivalent to calling append_edge per edge, but commits once and reuses
one prepared statement, so it scales to hundreds of thousands of edges
(e.g. building a citation graph during indexing).