& (bitwise AND)
Returns the bitwise AND of two numeric expressions
Syntax
expr1 & expr2 --> integer
expr1 ::= integer
expr2 ::= integer
Arguments
Parameter |
Description |
|---|---|
|
Integer expressions |
Returns
Returns an integer that is the bitwise AND of the inputs.
Notes
If either value is NULL, the result is NULL.
Examples
master=> SELECT 16 & 24;
16
master=> SELECT 101 & 110;
100
master=> SELECT 32 & 64;
0
master=> CREATE TABLE bit(b1 int, b2 int, b3 int);
executed
master=> INSERT INTO bit VALUES (1,2,3), (2, 4, 6), (4, 2, 6), (2, 8, 16), (null, null, 64), (5, 3, 1), (6, 1, 0);
executed
SELECT b1, b2, b3, b1 & b2, b2 & b3, b1 & b3 FROM bit;
b1 | b2 | b3 | ?column? | ?column?0 | ?column?1
---+----+----+----------+-----------+----------
1 | 2 | 3 | 0 | 2 | 1
2 | 4 | 6 | 0 | 4 | 2
4 | 2 | 6 | 0 | 2 | 4
2 | 8 | 16 | 0 | 0 | 0
| | 64 | | |
5 | 3 | 1 | 1 | 1 | 1
6 | 1 | 0 | 0 | 0 | 0