redhat man page for alter_trigger

ALTER 
TRIGGER(7)						   SQL Commands 						  ALTER TRIGGER(7)

NAME
       ALTER TRIGGER - change the definition of a trigger

SYNOPSIS
       ALTER TRIGGER trigger ON table
	   RENAME TO newname

   INPUTS
       trigger
	      The name of an existing trigger to alter.

       table  The name of the table on which this trigger acts.

       newname
	      New name for the existing trigger.

   OUTPUTS
       ALTER TRIGGER
	      Message returned from trigger renaming.

       ERROR  Message returned if trigger is not available, or new name is a duplicate of another existing trigger on the table.

DESCRIPTION
       ALTER  TRIGGER  changes the definition of an existing trigger.  The RENAME clause causes the name of a trigger on the given table to change
       without otherwise changing the trigger definition.

       You must own the table on which the trigger acts in order to change its properties.

   NOTES
       Refer to CREATE TRIGGER for a further description of valid arguments.

USAGE
       To rename an existing trigger:

       ALTER TRIGGER emp_stamp ON emp RENAME TO emp_track_chgs;

COMPATIBILITY
   SQL92
       The clause to rename triggers is a PostgreSQL extension from SQL92.

SQL - Language Statements					    2002-11-22							  ALTER TRIGGER(7)