https://www.pythian.com/blog/hashing-algorithm-in-mysql-password-2/
SELECT PASSWORD ("this_is_a_random_string"), SHA1( UNHEX( SHA1("this_is_a_random_string") ) )
https://www.pythian.com/blog/hashing-algorithm-in-mysql-password-2/
SELECT PASSWORD ("this_is_a_random_string"), SHA1( UNHEX( SHA1("this_is_a_random_string") ) )