New JSON functions in MySQL 5.7.22
A number of new JSON functions have been added to MySQL 8.0. Since we appreciate that not everyone will be ready to upgrade to MySQL 8.0 the minute it is released, we have backported many of the new functions to MySQL 5.7 so that they are available starting with version 5.7.22.…
Source: New JSON functions in MySQL 5.7.22
