# 执行计划中的算子 扫描数据类算子（B）
```
EXPLAIN SELECT * FROM t1 WHERE unique_key = 1234;
+-------------+---------+------+----------------------------------------+---------------+
| id          | estRows | task | access object                          | operator info |
+-------------+---------+------+----------------------------------------+---------------+
| Point_Get_1 | 1.00    | root | table:t1, index:unique_key(unique_key) |               |
+-------------+---------+------+----------------------------------------+---------------+
1 row in set (0.00 sec)
EXPLAIN SELECT * FROM t1 WHERE unique_key IN (1234, 123);
+-------------------+---------+------+----------------------------------------+------------------------------+
| id                | estRows | task | access object                          | operator info                |
+-------------------+---------+------+----------------------------------------+------------------------------+
| Batch_Point_Get_1 | 2.00    | root | table:t1, index:unique_key(unique_key) | keep order:false, desc:false |
+-------------------+---------+------+----------------------------------------+------------------------------+
1 row in set (0.00 sec)
```
-------------------------------------------------------------
Point Get 与 Batch Point Get
```
EXPLAIN SELECT * FROM t1 WHERE unique_key = 1234;
+-------------+---------+------+----------------------------------------+---------------+
| id          | estRows | task | access object                          | operator info |
+-------------+---------+------+----------------------------------------+---------------+
| Point_Get_1 | 1.00    | root | table:t1, index:unique_key(unique_key) |               |
+-------------+---------+------+----------------------------------------+---------------+
1 row in set (0.00 sec)
EXPLAIN SELECT * FROM t1 WHERE unique_key IN (1234, 123);
+-------------------+---------+------+----------------------------------------+------------------------------+
| id                | estRows | task | access object                          | operator info                |
+-------------------+---------+------+----------------------------------------+------------------------------+
| Batch_Point_Get_1 | 2.00    | root | table:t1, index:unique_key(unique_key) | keep order:false, desc:false |
+-------------------+---------+------+----------------------------------------+------------------------------+
1 row in set (0.00 sec)
```