ALTER_TRIGGER(7)

1ALTER TRIGGER(7)         PostgreSQL 13.4 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. The RENAME
14       clause changes the name of the given trigger without otherwise changing
15       the trigger definition. The DEPENDS ON EXTENSION clause marks the
16       trigger as dependent on an extension, such that if the extension is
17       dropped, the trigger will automatically be dropped as well.
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19       You must own the table on which the trigger acts to be allowed to
20       change its properties.
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PARAMETERS

23       name
24           The name of an existing trigger to alter.
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26       table_name
27           The name of the table on which this trigger acts.
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29       new_name
30           The new name for the trigger.
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32       extension_name
33           The name of the extension that the trigger is to depend on (or no
34           longer dependent on, if NO is specified). A trigger that's marked
35           as dependent on an extension is automatically dropped when the
36           extension is dropped.
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NOTES

39       The ability to temporarily enable or disable a trigger is provided by
40       ALTER TABLE (ALTER_TABLE(7)), not by ALTER TRIGGER, because ALTER
41       TRIGGER has no convenient way to express the option of enabling or
42       disabling all of a table's triggers at once.
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EXAMPLES

45       To rename an existing trigger:
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47           ALTER TRIGGER emp_stamp ON emp RENAME TO emp_track_chgs;
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49       To mark a trigger as being dependent on an extension:
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51           ALTER TRIGGER emp_stamp ON emp DEPENDS ON EXTENSION emplib;
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COMPATIBILITY

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