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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