##### murmur\_hash3\_32 **函数定义** `INT MURMUR_HASH3_32(VARCHAR input, ...)` 返回输入字符串的32位murmur3 hash值。 **示例** `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 |` `+-----------------------------------+` **关键字** `MURMUR_HASH3_32, HASH`