error after checkref

After execute the checkref command I got the following error n the 
refdbd.log: 


7:pid=29339:Thu Mar 15 16:43:49 2007:CREATE TEMPORARY TABLE t_temp_meta 
(meta_app VARCHAR(
20),meta_type VARCHAR(20),meta_version VARCHAR(20),meta_dbversion 
SMALLINT,meta_create_dat
e TIMESTAMP,meta_modify_date TIMESTAMP)
7:pid=29339:Thu Mar 15 16:43:51 2007:CREATE TEMPORARY TABLE t_temp_refdb 
(refdb_id BIGSERI
AL,refdb_citekey VARCHAR(255) UNIQUE,refdb_type VARCHAR(6),refdb_pubyear 
SMALLINT,refdb_se
cyear SMALLINT,refdb_startpage VARCHAR(255),refdb_endpage 
VARCHAR(255),refdb_abstract TEXT
,refdb_title TEXT,refdb_volume VARCHAR(255),refdb_issue 
VARCHAR(255),refdb_booktitle TEXT,
refdb_city VARCHAR(255),refdb_publisher VARCHAR(255),refdb_title_series 
TEXT,refdb_address
TEXT,refdb_issn VARCHAR(255),refdb_pyother_info 
VARCHAR(255),refdb_secother_info VARCHAR(
255),refdb_periodical_id BIGINT,refdb_user1 VARCHAR(255),refdb_user2 
VARCHAR(255),refdb_us
er3 VARCHAR(255),refdb_user4 VARCHAR(255),refdb_user5 
VARCHAR(255),refdb_misc1 VARCHAR(255
),refdb_misc2 VARCHAR(255),refdb_misc3 VARCHAR(255),PRIMARY KEY (refdb_id))
7:pid=29339:Thu Mar 15 16:43:53 2007:ERROR:  failed to re-find parent key in 
"pg_attribute
_relid_attnam_index" 

3:pid=29339:Thu Mar 15 16:43:53 2007:create t_refdb failed
2:pid=29339:Thu Mar 15 16:43:53 2007:create temporary table failed
6:pid=29339:Thu Mar 15 16:43:53 2007:child finished client on fd 6 

i use postgres as the database-server, any ideas?
other command like getref work. 


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