Yep, its a bug. Not sure about the cause, but will look into it in the
next few weeks.
>
> Just thought I'd try the cluster command. What am I doing wrong.
> ReadHat 5.0
> 6.3.1 rpm's
>
> [djackson@www]$ psql template1
> Welcome to the POSTGRESQL interactive sql monitor:
> Please read the file COPYRIGHT for copyright terms of POSTGRESQL
>
> type \? for help on slash commands
> type \q to quit
> type \g or terminate with semicolon to execute query
> You are currently connected to the database: template1
>
> template1=> \d
> Couldn't find any tables, sequences or indices!
> template1=> \l
> datname |datdba|datpath
> ---------+------+---------
> template1| 100|template1
> postgres | 100|postgres
> (2 rows)
>
> template1=> create database test;
> CREATEDB
> template1=> \connect test
> connecting to new database: test
> test=> create table list (k int2);
> CREATE
> test=> insert into list values (1);
> INSERT 33769 1
> test=> insert into list select max(k)+1;
> .
> .
> .
> test=> select * from list;
> k
> -
> 1
> 2
> 3
> 4
> 5
> 6
> (6 rows)
>
> test=> create table list2 (k1 int2 NOT NULL, k2 int2 NOT NULL);
> CREATE
> test=> create UNIQUE INDEX l1 ON list2(k1, k2);
> CREATE
> test=> create UNIQUE INDEX l2 ON list2(k2, k1);
> CREATE
> test=> insert into list2 select l1.k, l2.k from list as l1, list as l2;
> INSERT 0 36
> test=> select * from list2;
> k1|k2
> --+--
> 1| 1
> 2| 1
> 3| 1
> .
> .
> .
> 4| 6
> 5| 6
> 6| 6
> (36 rows)
>
> test=> vacuum verbose analyze list2;
> NOTICE: Rel list2: Pages 1: Changed 0, Reapped 0, Empty 0, New 0; Tup
> 36: Vac 0, Crash 0, UnUsed 0, MinLen 44, MaxLen 44; Re-using:
> Free/Avail. Space 0/0; EndEmpty/Avail. Pages 0/0. Elapsed 0/0 sec.
> NOTICE: Ind l2: Pages 2; Tuples 36. Elapsed 0/0 sec.
> NOTICE: Ind l1: Pages 2; Tuples 36. Elapsed 0/0 sec.
> VACUUM
> test=> cluster l1 on list2;
> ERROR: Cannot create unique index. Table contains non-unique values
> test=> cluster l2 on list2;
> PQexec() -- Request was sent to backend, but backend closed the channel
> before responding.
> This probably means the backend terminated abnormally before or
> while processing the request.
>
>
--
Bruce Momjian | 830 Blythe Avenue
maillist@candle.pha.pa.us | Drexel Hill, Pennsylvania 19026
+ If your life is a hard drive, | (610) 353-9879(w)
+ Christ can be your backup. | (610) 853-3000(h)
