`information_schema.triggers.action_timing`

mysql

type: ENUM NOT NULL

5.7-8

type: NULL

Note:

Whether the trigger acts BEFORE or AFTER the event that triggers it.

5.1-10.8

type: VARCHAR NOT NULL

Note:

Whether the trigger acts BEFORE or AFTER the event that triggers it.

type: CHARACTER_DATA NULL

Note:

Time at which the trigger fires (BEFORE, AFTER, or INSTEAD OF)

10-15

type: CHARACTER_DATA

Note:

Time at which the trigger fires (BEFORE, AFTER, or INSTEAD OF)

9.1-9.6