ALTER TRIGGER(7) PostgreSQL 15.7 Documentation ALTER TRIGGER(7)
NAME
ALTER_TRIGGER - change the definition of a trigger
SYNOPSIS
ALTER TRIGGER name ON table_name RENAME TO new_name
ALTER TRIGGER name ON table_name [ NO ] DEPENDS ON EXTENSION extension_name
DESCRIPTION
ALTER TRIGGER changes properties of an existing trigger.
The RENAME clause changes the name of the given trigger without
otherwise changing the trigger definition. If the table that the
trigger is on is a partitioned table, then corresponding clone triggers
in the partitions are renamed too.
The DEPENDS ON EXTENSION clause marks the trigger as dependent on an
extension, such that if the extension is dropped, the trigger will
automatically be dropped as well.
You must own the table on which the trigger acts to be allowed to
change its properties.
PARAMETERS
name
The name of an existing trigger to alter.
table_name
The name of the table on which this trigger acts.
new_name
The new name for the trigger.
extension_name
The name of the extension that the trigger is to depend on (or no
longer dependent on, if NO is specified). A trigger that's marked
as dependent on an extension is automatically dropped when the
extension is dropped.
NOTES
The ability to temporarily enable or disable a trigger is provided by
ALTER TABLE, 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.
EXAMPLES
To rename an existing trigger:
ALTER TRIGGER emp_stamp ON emp RENAME TO emp_track_chgs;
To mark a trigger as being dependent on an extension:
ALTER TRIGGER emp_stamp ON emp DEPENDS ON EXTENSION emplib;
COMPATIBILITY
ALTER TRIGGER is a PostgreSQL extension of the SQL standard.
SEE ALSO
ALTER TABLE (ALTER_TABLE(7))
PostgreSQL 15.7 2024 ALTER TRIGGER(7)
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