Hash

Hash functions can be used for the deterministic pseudo-random shuffling of elements.

md5

md5(string) Calculates the MD5 from a string and returns the resulting set of bytes as fixed_string(16). If you want to get the same result as output by the md5sum utility, use lower(hex(md5(s))).

md4

md4(string) Calculates the MD4 from a string and returns the resulting set of bytes as fixed_string(16).