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 on the right that is evaluated against the JSON document (the
column value). You can use such expressions in place of column
identifiers wherever they occur in SQL statements.

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

