[patch] ALTER RENAME and indexes

The attached patch works for my case...

regression=# create table test (id serial, col1 varchar(64));
NOTICE: CREATE TABLE will create implicit sequence 'test_id_seq' for SERIAL column 'test.id'
NOTICE: CREATE TABLE/UNIQUE will create implicit index 'test_id_key' for table 'test'
CREATE
regression=# create index i_t_c on test(col1);
CREATE
regression=# alter table test rename col1 to col2;
ALTER
regression=# \d test
Table "test"
Column | Type | Modifiers
--------+-----------------------+-------------------------------------------------
id | integer | not null default nextval('"test_id_seq"'::text)
col2 | character varying(64) |
Indexes: i_t_c
Unique keys: test_id_key

regression=# \d itc
Did not find any relation named "itc".
regression=# \d i_t_c
Index "i_t_c"
Column | Type
--------+-----------------------
col2 | character varying(64)
btree

wooohoo!!! Of course, it would be best if someone else looked this
code over, because I get the feeling there is an easier way to get
this done. The only thing I can say is that it solves my problem
and does not /appear/ to create any others.

cheers.
Brent

p.s., I appreciate the gurus not jumping in with the quick fix --
The experience has been fun :-)

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