MURMUR_HASH3_32

murmur_hash3_32

description

Syntax

INT MURMUR_HASH3_32(VARCHAR input, ...)

返回输入字符串的32位murmur3 hash值。

注：在计算hash值时，更推荐使用xxhash_32，而不是murmur_hash3_32。

example

mysql> select murmur_hash3_32(null);
+-----------------------+
| murmur_hash3_32(NULL) |
+-----------------------+
|                  NULL |
+-----------------------+

mysql> select murmur_hash3_32("hello");
+--------------------------+
| murmur_hash3_32('hello') |
+--------------------------+
|               1321743225 |
+--------------------------+

mysql> select murmur_hash3_32("hello", "world");
+-----------------------------------+
| murmur_hash3_32('hello', 'world') |
+-----------------------------------+
|                         984713481 |
+-----------------------------------+

keywords

MURMUR_HASH3_32,HASH