vacuumdb -z do a reindex?

I thought 'vacuumdb -z dbname' also reindex is this true?

I've had a simple update running for over 4 hours now (see results from
pg_top below). The sql is:

The database has 1016789 records, vacuumdb -z is ran once a day. I have
not ran 'reindexdb' in weeks. The system is a:

2xIntel 4-core Xeon Model E5430 (Harpertown) 2.66GHz, 32GB RAM and
8x145GB SAS drives configured with software RAID10

Your comments are appreciated.
--irene

>> last pid: 1185; load avg: 2.17, 2.21, 1.60; up 38+01:36:40 13:52:27
>> 14 processes: 2 running, 12 sleeping
>> CPU states: 14.0% user, 0.0% nice, 10.5% system, 75.4% idle, 0.0% iowait
>> Memory: 11G used, 20G free, 456M buffers, 8724M cached
>> Swap:
>>
>> PID USERNAME PRI NICE SIZE RES STATE TIME WCPU CPU COMMAND
>> 28508 postgres 17 0 93M 38M run 265:53 58.42% 99.08% postgres: postgres metadata 140.252.26.34(34717) UPDATE
>> 31609 postgres 16 0 91M 36M run 7:05 57.85% 98.09% postgres: system_admin metadata 140.252.26.34(43303) SELECT
>> 25156 postgres 16 0 102M 46M sleep 7:28 0.00% 0.00% postgres: system_admin metadata 140.252.6.51(40350) idle
>> 25363 postgres 18 0 93M 37M sleep 5:08 0.00% 0.00% postgres: system_admin metadata 140.252.6.51(35951) idle
>> 31622 postgres 15 0 95M 38M sleep 1:45 0.00% 0.00% postgres: system_admin metadata 140.252.6.51(51917) idle
>> 31624 postgres 15 0 95M 38M sleep 0:14 0.00% 0.00% postgres: system_admin metadata 140.252.6.51(53908) idle
>> 28755 postgres 15 0 91M 10M sleep 0:02 0.00% 0.00% postgres: postgres keyword 140.252.26.33(41270) idle
>> 28757 postgres 15 0 91M 10M sleep 0:02 0.00% 0.00% postgres: postgres keyword 140.252.26.33(41272) idle
>> 28756 postgres 15 0 91M 10M sleep 0:02 0.00% 0.00% postgres: postgres keyword 140.252.26.33(41271) idle
>> 28758 postgres 15 0 91M 10M sleep 0:02 0.00% 0.00% postgres: postgres keyword 140.252.26.33(41273) idle
>> 28754 postgres 15 0 92M 9724K sleep 0:02 0.00% 0.00% postgres: postgres keyword 140.252.26.33(41269) idle
>> 25180 postgres 15 0 91M 7016K sleep 0:00 0.00% 0.00% postgres: postgres metadata 140.252.6.51(33997) idle
>> 25179 postgres 15 0 91M 6956K sleep 0:00 0.00% 0.00% postgres: postgres metadata 140.252.6.51(47331) idle
>> 1186 postgres 16 0 90M 4808K sleep 0:00 0.00% 0.00% postgres: arcsoft metadata [local] idle
>> [arcsoft(at)archdbn1 ~]$ date
>> Fri Nov 27 13:53:28 MST 2009

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Irene Barg Email: ibarg(at)noao(dot)edu
NOAO/AURA Inc. http://www.noao.edu/noao/staff/ibarg
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