Why are my index files are much larger than my datafiles

From: Michael J Davis <michael(dot)j(dot)davis(at)tvguide(dot)com>
To: pgsql-general(at)postgreSQL(dot)org
Subject: Why are my index files are much larger than my datafiles
Date: 1999-04-27 03:35:53
Message-ID: 93C04F1F5173D211A27900105AA8FCFC145424@lambic.prevuenet.com
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-rw------- 1 postgres postgres 983040 Apr 26 20:33
si_tmpverifyaccountbalances
-rw------- 1 postgres postgres 18137088 Apr 20 13:03
si_tmpverifyaccountbalances_pke
=> select count(*) from si_tmpverifyaccountbalances;
count
-----
16176

w------- 1 postgres postgres 0 Apr 20 13:04
verifyaccountbalanceerrors
-rw------- 1 postgres postgres 516096 Apr 20 13:04
verifyaccountbalanceerrors_pkey
=> select count(*) from verifyaccountbalanceerrors;
count
-----
0

The first index is three int4 values. The second index is one int4 value.
Why are the index files so large? What can I do to reclaim the disk space.
This is after a vacuum. PostgreSQL 6.5 as of 4/25/99. Red Hat 5.1 intel
pentium II.

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