Pat Heuvel <pheuvel@xxxxxxxxxx> writes: > On 6/02/2012 4:39 AM, Tom Lane wrote: >> What exactly happens when you try to reindex pg_largeobject? > ERROR: could not create unique index "pg_largeobject_loid_pn_index" > DETAIL: Table contains duplicated values. Could be worse. What you'll need to do is look through the pg_largeobject catalog for duplicated (loid, pageno) values, and manually DELETE the redundant rows, or else reassign them new OIDs if you want to keep the data. A tip for issuing the removal commands is to use the CTID column to distinguish otherwise-identical rows, ie you could do something like select ctid, loid, pageno from pg_largeobject where (loid, pageno) in (select loid, pageno from pg_largeobject group by 1, 2 having count(*) > 1); ... examine results ... delete from pg_largeobject where ctid = '...'; I believe you'll need to do any direct DELETE or UPDATE on the catalog as superuser. regards, tom lane -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general