alter_type man page on Scientific

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ALTER TYPE(7)			 SQL Commands			 ALTER TYPE(7)

       ALTER TYPE - change the definition of a type

       ALTER TYPE name RENAME TO new_name
       ALTER TYPE name OWNER TO new_owner
       ALTER TYPE name SET SCHEMA new_schema

       ALTER TYPE changes the definition of an existing type.

       You  must  own  the  type to use ALTER TYPE.  To change the schema of a
       type, you must also have CREATE privilege on the new schema.  To	 alter
       the owner, you must also be a direct or indirect member of the new own‐
       ing role, and that role	must  have  CREATE  privilege  on  the	type's
       schema.	(These restrictions enforce that altering the owner doesn't do
       anything you couldn't do by dropping and recreating the type.  However,
       a superuser can alter ownership of any type anyway.)

       name   The  name	 (possibly  schema-qualified)  of  an existing type to

	      The new name for the type.

	      The user name of the new owner of the type.

	      The new schema for the type.

       To rename a data type:

       ALTER TYPE electronic_mail RENAME TO email;

       To change the owner of the type email to joe:

       ALTER TYPE email OWNER TO joe;

       To change the schema of the type email to customers:

       ALTER TYPE email SET SCHEMA customers;

       There is no ALTER TYPE statement in the SQL standard.

SQL - Language Statements	  2013-10-08			 ALTER TYPE(7)

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