Spark SQL----内置函数Bitwise Functions
- Bitwise Functions
例子：
-- &
SELECT 3 & 5;
+-------+
|(3 & 5)|
+-------+
| 1|
+-------+-- ^
SELECT 3 ^ 5;
+-------+
|(3 ^ 5)|
+-------+
| 6|
+-------+-- bit_count
SELECT bit_count(0);
+------------+
|bit_count(0)|
+------------+
| 0|
+------------+-- bit_get
SELECT bit_get(11, 0);
+--------------+
|bit_get(11, 0)|
+--------------+
| 1|
+--------------+SELECT bit_get(11, 2);
+--------------+
|bit_get(11, 2)|
+--------------+
| 0|
+--------------+-- getbit
SELECT getbit(11, 0);
+-------------+
|getbit(11, 0)|
+-------------+
| 1|
+-------------+SELECT getbit(11, 2);
+-------------+
|getbit(11, 2)|
+-------------+
| 0|
+-------------+-- shiftright
SELECT shiftright(4, 1);
+----------------+
|shiftright(4, 1)|
+----------------+
| 2|
+----------------+-- shiftrightunsigned
SELECT shiftrightunsigned(4, 1);
+------------------------+
|shiftrightunsigned(4, 1)|
+------------------------+
| 2|
+------------------------+-- |
SELECT 3 | 5;
+-------+
|(3 | 5)|
+-------+
| 7|
+-------+-- ~
SELECT ~ 0;
+---+
| ~0|
+---+
| -1|
+---+
