ALTER INDEX — change the definition of an index
ALTER INDEXname
action
[, ... ] ALTER INDEXname
RENAME TOnew_name
whereaction
is one of: OWNER TOnew_owner
SET TABLESPACEindexspace_name
ALTER INDEX
changes the definition of an existing index.
There are several subforms:
OWNER
This form changes the owner of the index to the specified user. This can only be done by a superuser.
SET TABLESPACE
This form changes the index's tablespace to the specified tablespace and moves the data file(s) associated with the index to the new tablespace. See also CREATE TABLESPACE.
RENAME
The RENAME
form changes the name of the index.
There is no effect on the stored data.
All the actions except RENAME
can be combined into
a list of multiple alterations to apply in parallel.
name
The name (possibly schema-qualified) of an existing index to alter.
new_name
New name for the index.
new_owner
The user name of the new owner of the index.
tablespace_name
The tablespace name to which the index will be moved.
These operations are also possible using
ALTER TABLE.
ALTER INDEX
is in fact just an alias for the forms
of ALTER TABLE
that apply to indexes.
Changing any part of a system catalog index is not permitted.