ALTER_TRIGGER(7)

1ALTER TRIGGER(7)         PostgreSQL 15.4 Documentation        ALTER TRIGGER(7)
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NAME

6       ALTER_TRIGGER - change the definition of a trigger
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SYNOPSIS

9       ALTER TRIGGER name ON table_name RENAME TO new_name
10       ALTER TRIGGER name ON table_name [ NO ] DEPENDS ON EXTENSION extension_name
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DESCRIPTION

13       ALTER TRIGGER changes properties of an existing trigger.
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15       The RENAME clause changes the name of the given trigger without
16       otherwise changing the trigger definition. If the table that the
17       trigger is on is a partitioned table, then corresponding clone triggers
18       in the partitions are renamed too.
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20       The DEPENDS ON EXTENSION clause marks the trigger as dependent on an
21       extension, such that if the extension is dropped, the trigger will
22       automatically be dropped as well.
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24       You must own the table on which the trigger acts to be allowed to
25       change its properties.
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PARAMETERS

28       name
29           The name of an existing trigger to alter.
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31       table_name
32           The name of the table on which this trigger acts.
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34       new_name
35           The new name for the trigger.
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37       extension_name
38           The name of the extension that the trigger is to depend on (or no
39           longer dependent on, if NO is specified). A trigger that's marked
40           as dependent on an extension is automatically dropped when the
41           extension is dropped.
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NOTES

44       The ability to temporarily enable or disable a trigger is provided by
45       ALTER TABLE, not by ALTER TRIGGER, because ALTER TRIGGER has no
46       convenient way to express the option of enabling or disabling all of a
47       table's triggers at once.
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EXAMPLES

50       To rename an existing trigger:
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52           ALTER TRIGGER emp_stamp ON emp RENAME TO emp_track_chgs;
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54       To mark a trigger as being dependent on an extension:
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56           ALTER TRIGGER emp_stamp ON emp DEPENDS ON EXTENSION emplib;
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COMPATIBILITY

59       ALTER TRIGGER is a PostgreSQL extension of the SQL standard.
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