& (bitwise AND)

Returns the bitwise AND of two numeric expressions

Syntax

expr1 & expr2 --> integer

expr1 ::= integer

expr2 ::= integer

Arguments

Parameter Description
expr1, expr2 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