MySQL Error Message
Cannot create a functional index on a function that
returns a JSON or GEOMETRY value.
Reason for the Error
ER_FUNCTIONAL_INDEX_ON_JSON_OR_GEOMETRY_FUNCTION
was added in 8.0.13.
Cannot create a functional index on a function that
returns a JSON or GEOMETRY value.
ER_FUNCTIONAL_INDEX_ON_JSON_OR_GEOMETRY_FUNCTION
was added in 8.0.13.