XXHASH_32

xxhash_32

description

Syntax

INT XXHASH_32(VARCHAR input, ...)

返回输入字符串的32位xxhash值。

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

example

mysql> select xxhash_32(NULL);
+-----------------+
| xxhash_32(NULL) |
+-----------------+
|            NULL |
+-----------------+

mysql> select xxhash_32("hello");
+--------------------+
| xxhash_32('hello') |
+--------------------+
|          -83855367 |
+--------------------+

mysql> select xxhash_32("hello", "world");
+-----------------------------+
| xxhash_32('hello', 'world') |
+-----------------------------+
|                  -920844969 |
+-----------------------------+

keywords

HASH_32,HASH