Sergey Grankin

@jcoughlin9 A version that survived in my code: https://gist.github.com/sgrankin/1862c194c6544be10dceb4b19a1259f3 Also note that on mysql 5.6 that construction may result in table scans; I've been trying out a different construct https://gist.github.com/sgrankin/b6fe659aacb93e57b4483dbfc1377e49...