The query below lists all columns with JSON data types in MySQL.

Query

select col.table_schema as database_name,
       col.table_name,
       col.ordinal_position as column_id,
       col.column_name,
       col.data_type
from information_schema.columns col
join information_schema.tables tab on tab.table_schema = col.table_schema
                                   and tab.table_name = col.table_name
                                   and tab.table_type = 'BASE TABLE'
where col.data_type in ('json')
      and col.table_schema not in ('information_schema', 'sys',
                                   'performance_schema', 'mysql')
     --and col.table_schema = 'database_name' -- put your database name here
order by col.table_schema,
         col.table_name,
         col.ordinal_position;

Columns

• database_name - name of the database (schema)
• table_name - name of the table
• column_id - column position in table
• column_name - name of the column
• data_type - type of data

Rows

• One row represents one column with a JSON data type
• Scope of rows: all columns containing JSON data types in the database (schema)
• Ordered by database name and table name

Sample results