ALTER TRIGGER name ON table RENAME TO newname
ALTER TRIGGER changes properties of an existing trigger. The RENAME clause changes the name of the given trigger without otherwise changing the trigger definition.
You must own the table on which the trigger acts to be allowed to change its properties.
The ability to temporarily enable or disable a trigger is provided by ALTER TABLE [alter_table(7)], not by ALTER TRIGGER, because ALTER TRIGGER has no convenient way to express the option of enabling or disabling all of a table's triggers at once.
To rename an existing trigger:
ALTER TRIGGER emp_stamp ON emp RENAME TO emp_track_chgs;
ALTER TRIGGER is a PostgreSQL extension of the SQL standard.