MySQL 9.5 Reference Manual Including MySQL NDB Cluster 9.5
To obtain metadata about triggers:
          Query the TRIGGERS table of the
          INFORMATION_SCHEMA database. See
          Section 28.3.50, “The INFORMATION_SCHEMA TRIGGERS Table”.
        
          Use the SHOW CREATE TRIGGER
          statement. See Section 15.7.7.13, “SHOW CREATE TRIGGER Statement”.
        
          Use the SHOW TRIGGERS
          statement. See Section 15.7.7.41, “SHOW TRIGGERS Statement”.