BIT_AND

Function Description

BIT_AND() is an aggregate function that calculates the bitwise aggregation of all bits in a column.

Function Syntax

> BIT_AND(expr)

Parameter definition

Parameters	Description
expr	Column of type UINT

Example

> drop table if exists t1;
> CREATE TABLE t1 (id CHAR(1), number INT);
> INSERT INTO t1 VALUES
      ('a',111),('a',110),('a',100),
      ('a',000),('b',001),('b',011);

> select id, BIT_AND(number) FROM t1 GROUP BY id;
+---------------------------------+
| id | bit_and(number) |
+---------------------------------+
| a | 0 |
| b | 1 |
+---------------------------------+