On Wed, Sep 07, 2005 at 10:50:44AM +0100, Adam Witney wrote: > pg_dump: ERROR: unexpected chunk number 3292 (expected 5) for toast value > 144391872 > pg_dump: SQL command to dump the contents of table "measured_bioassay_base" You might have a corrupted TOAST table. Have you had any hardware problems, database or system crashes, etc., lately? Do you see any unusual messages in the database or system log files? What are the results of the following queries? SELECT reltoastrelid::regclass FROM pg_class WHERE relname = 'measured_bioassay_base'; (The following query refers to the above result as pg_toast.pg_toast_XXXXXX.) SELECT xmin, xmax, chunk_seq, length(chunk_data) FROM pg_toast.pg_toast_XXXXXX WHERE chunk_id = 144391872; -- Michael Fuhr