mysql> select @@session.last_insert_id;
+--------------------------+
| @@session.last_insert_id |
+--------------------------+
| 11,32 |
+--------------------------+
1 rows in set
mysql> select LAST_INSERT_ID();
+------------------+
| LAST_INSERT_ID() |
+------------------+
| 25,26,29 |
+------------------+
1 rows in set
CONNECTION_ID()
返回当前连接的ID。
mysql> select CONNECTION_ID();
+-----------------+
| CONNECTION_ID() |
+-----------------+
| 6 |
+-----------------+
1 row in set (0.00 sec)
KNN_DIST()
mysql> select id, knn_dist() from test where knn ( image_vector, 5, (0.286569,-0.031816,0.066684,0.032926) ) and match('white') and id < 10;
+------+------------+
| id | knn_dist() |
+------+------------+
| 2 | 0.81527930 |
+------+------------+
1 row in set (0.00 sec)
