Syntax:
column->path

The -> operator serves as an alias for the JSON_EXTRACT() function when
used with two arguments, a column identifier on the left and a JSON
path (a string literal) on the right that is evaluated against the JSON
document (the column value). You can use such expressions in place of
column references wherever they occur in SQL statements.

URL: https://dev.mysql.com/doc/refman/8.0/en/json-search-functions.html

