BUG #15023: problem with pg_statistic

From: PG Bug reporting form <noreply(at)postgresql(dot)org>
To: pgsql-bugs(at)lists(dot)postgresql(dot)org
Cc: ktr(at)goldin-rudahl(dot)com
Subject: BUG #15023: problem with pg_statistic
Date: 2018-01-21 02:59:24
Message-ID: 20180121025924.3633.29967@wrigleys.postgresql.org
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The following bug has been logged on the website:

Bug reference: 15023
Logged by: kurt rudahl
Email address: ktr(at)goldin-rudahl(dot)com
PostgreSQL version: Unsupported/Unknown
Operating system: linux
Description:

Problem: cannot reindex pg_statistic
therefore cannot vacuum

Steps to recreate:
1. restart postgresql
2. psql thaistocks

\set VERBOSITY verbose
thaistocks=# reindex table pg_statistic;
ERROR: 23505: could not create unique index
DETAIL: Table contains duplicated values.
LOCATION: comparetup_index, tuplesort.c:2163

thaistocks=# select starelid,staattnum from pg_statistic group by
starelid,staattnum having count(*) > 1;
starelid | staattnum
----------+-----------
10723 | 5
10728 | 1
1260 | 9
(3 rows)

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