比如用一下查询语句查询： CALL algo.triangle.stream(‘ID’,‘id2id’, {concurrency:4}) YIELD nodeA,nodeB,nodeC

每次查询，结果条数都不一致，比如： Started streaming 12955 records after 116 ms and completed after 177 ms, displaying first 1000 rows. Started streaming 15940 records after 65 ms and completed after 92 ms, displaying first 1000 rows.

请问有人知道是什么原因吗？