GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
CentOS 5.5 |
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alter_aggregate(7) |
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ALTER AGGREGATE − change the definition of an aggregate function
ALTER AGGREGATE
name ( type ) RENAME TO new_name
ALTER AGGREGATE name ( type ) OWNER TO
new_owner
ALTER AGGREGATE name ( type ) SET SCHEMA
new_schema
ALTER AGGREGATE changes the definition of an aggregate function.
You must own the aggregate function to use ALTER AGGREGATE. To change the schema of an aggregate function, 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 owning role, and that role must have CREATE privilege on the aggregate function’s schema. (These restrictions enforce that altering the owner doesn’t do anything you couldn’t do by dropping and recreating the aggregate function. However, a superuser can alter ownership of any aggregate function anyway.)
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name |
The name (optionally schema-qualified) of an existing aggregate function. | ||
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type |
The argument data type of the aggregate function, or * if the function accepts any data type. |
new_name
The new name of the aggregate function.
new_owner
The new owner of the aggregate function.
new_schema
The new schema for the aggregate function.
To rename the aggregate function myavg for type integer to my_average:
ALTER AGGREGATE myavg(integer) RENAME TO my_average;
To change the owner of the aggregate function myavg for type integer to joe:
ALTER AGGREGATE myavg(integer) OWNER TO joe;
To move the aggregate function myavg for type integer into schema myschema:
ALTER AGGREGATE myavg(integer) SET SCHEMA myschema;
There is no ALTER AGGREGATE statement in the SQL standard.
CREATE AGGREGATE [create_aggregate(7)], DROP AGGREGATE [drop_aggregate(l)]
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alter_aggregate(7) | |