Function vldb_sqlite_runtime_open_database 

#[unsafe(no_mangle)]
pub extern "C" fn vldb_sqlite_runtime_open_database(
    runtime: *mut VldbSqliteRuntimeHandle,
    db_path: *const c_char,
) -> *mut VldbSqliteDatabaseHandle

打开或复用指定路径的数据库句柄。 Open or reuse a database handle for the specified path.