error en vacuum analyze

Saludos lista, estoy intentando sacar un vacuum analyze y obtengo este
error, utilizo postgresql 8.3, es un problema de memoria?,que puedo
hacer para arreglarlo?
-------------------------------------------------------------------
INFO: vacuuming "public.localizacion"
ERROR: out of memory
DETAIL: Failed on request of size 1048575996.

ERROR: out of memory
DETAIL: Failed on request of size 1048575996.
--------------------------------------------------------------------

Y en el log de postgresql tengo este otro error, lo que pasa con esto
es que los datos no quedan en la tabla afectada:
---------------------------------------------------------------------------------------------------
2010-09-20 15:03:29 COTERROR: out of memory
2010-09-20 15:03:29 COTDETAIL: Failed on request of size 1048575996.
2010-09-20 15:03:29 COTCONTEXT: automatic vacuum of table
"ultra2.public.tramas"
TopMemoryContext: 58472 total in 7 blocks; 4616 free (7 chunks); 53856 used
TopTransactionContext: 24576 total in 2 blocks; 23424 free (16
chunks); 1152 used
Operator class cache: 8192 total in 1 blocks; 3848 free (0 chunks); 4344 used
TOAST to main relid map: 24576 total in 2 blocks; 14064 free (5
chunks); 10512 used
AV worker: 24576 total in 2 blocks; 19640 free (9 chunks); 4936 used
Autovacuum Portal: 8192 total in 1 blocks; 8176 free (0 chunks); 16 used
Vacuum: 8192 total in 1 blocks; 8136 free (0 chunks); 56 used
smgr relation table: 8192 total in 1 blocks; 2816 free (0 chunks); 5376 used
TransactionAbortContext: 32768 total in 1 blocks; 32752 free (0
chunks); 16 used
Portal hash: 8192 total in 1 blocks; 3912 free (0 chunks); 4280 used
PortalMemory: 0 total in 0 blocks; 0 free (0 chunks); 0 used
Relcache by OID: 8192 total in 1 blocks; 2856 free (0 chunks); 5336 used
CacheMemoryContext: 667696 total in 20 blocks; 259912 free (3
chunks); 407784 used
totvar: 1024 total in 1 blocks; 192 free (0 chunks); 832 used
kji: 1024 total in 1 blocks; 344 free (0 chunks); 680 used
indplaca: 1024 total in 1 blocks; 344 free (0 chunks); 680 used
variables_pkey: 1024 total in 1 blocks; 344 free (0 chunks); 680 used
btramas: 1024 total in 1 blocks; 192 free (0 chunks); 832 used
tramas_pkey: 1024 total in 1 blocks; 344 free (0 chunks); 680 used
ldoble: 1024 total in 1 blocks; 280 free (0 chunks); 744 used
htyrt: 1024 total in 1 blocks; 128 free (0 chunks); 896 used
defin: 1024 total in 1 blocks; 192 free (0 chunks); 832 used
condu_fech: 1024 total in 1 blocks; 280 free (0 chunks); 744 used
poi: 1024 total in 1 blocks; 344 free (0 chunks); 680 used
bevento_al: 1024 total in 1 blocks; 192 free (0 chunks); 832 used
evento_estado_alarma_pkey: 1024 total in 1 blocks; 344 free (0
chunks); 680 used
pg_index_indrelid_index: 1024 total in 1 blocks; 304 free (0
chunks); 720 used
pg_attrdef_adrelid_adnum_index: 1024 total in 1 blocks; 240 free
(0 chunks); 784 used
pg_opclass_am_name_nsp_index: 1024 total in 1 blocks; 192 free (0
chunks); 832 used
pg_foreign_data_wrapper_name_index: 1024 total in 1 blocks; 344
free (0 chunks); 680 used
pg_enum_oid_index: 1024 total in 1 blocks; 344 free (0 chunks); 680 used
pg_class_relname_nsp_index: 1024 total in 1 blocks; 280 free (0
chunks); 744 used
pg_foreign_server_oid_index: 1024 total in 1 blocks; 344 free (0
chunks); 680 used
pg_statistic_relid_att_index: 1024 total in 1 blocks; 280 free (0
chunks); 744 used
pg_cast_source_target_index: 1024 total in 1 blocks; 280 free (0
chunks); 744 used
pg_language_name_index: 1024 total in 1 blocks; 344 free (0
chunks); 680 used
pg_authid_oid_index: 1024 total in 1 blocks; 304 free (0 chunks); 720 used
pg_amop_fam_strat_index: 1024 total in 1 blocks; 88 free (0
chunks); 936 used
pg_index_indexrelid_index: 1024 total in 1 blocks; 304 free (0
chunks); 720 used
pg_ts_template_tmplname_index: 1024 total in 1 blocks; 280 free (0
chunks); 744 used
pg_ts_config_map_index: 1024 total in 1 blocks; 192 free (0
chunks); 832 used
pg_opclass_oid_index: 1024 total in 1 blocks; 304 free (0 chunks); 720 used
pg_foreign_data_wrapper_oid_index: 1024 total in 1 blocks; 344
free (0 chunks); 680 used
pg_auth_members_member_role_index: 1024 total in 1 blocks; 280
free (0 chunks); 744 used
pg_ts_dict_oid_index: 1024 total in 1 blocks; 344 free (0 chunks); 680 used
pg_conversion_default_index: 1024 total in 1 blocks; 128 free (0
chunks); 896 used
pg_operator_oprname_l_r_n_index: 1024 total in 1 blocks; 128 free
(0 chunks); 896 used
pg_trigger_tgrelid_tgname_index: 1024 total in 1 blocks; 240 free
(0 chunks); 784 used
pg_enum_typid_label_index: 1024 total in 1 blocks; 280 free (0
chunks); 744 used
pg_ts_config_oid_index: 1024 total in 1 blocks; 344 free (0
chunks); 680 used
pg_user_mapping_oid_index: 1024 total in 1 blocks; 344 free (0
chunks); 680 used
pg_opfamily_am_name_nsp_index: 1024 total in 1 blocks; 192 free (0
chunks); 832 used
pg_type_oid_index: 1024 total in 1 blocks; 344 free (0 chunks); 680 used
pg_aggregate_fnoid_index: 1024 total in 1 blocks; 344 free (0
chunks); 680 used
pg_constraint_oid_index: 1024 total in 1 blocks; 344 free (0
chunks); 680 used
pg_rewrite_rel_rulename_index: 1024 total in 1 blocks; 280 free (0
chunks); 744 used
pg_ts_parser_prsname_index: 1024 total in 1 blocks; 280 free (0
chunks); 744 used
pg_ts_config_cfgname_index: 1024 total in 1 blocks; 280 free (0
chunks); 744 used
pg_ts_parser_oid_index: 1024 total in 1 blocks; 344 free (0
chunks); 680 used
pg_operator_oid_index: 1024 total in 1 blocks; 344 free (0 chunks); 680 used
pg_namespace_nspname_index: 1024 total in 1 blocks; 344 free (0
chunks); 680 used
pg_ts_template_oid_index: 1024 total in 1 blocks; 344 free (0
chunks); 680 used
pg_amop_opr_fam_index: 1024 total in 1 blocks; 280 free (0 chunks); 744 used
pg_ts_dict_dictname_index: 1024 total in 1 blocks; 280 free (0
chunks); 744 used
pg_auth_members_role_member_index: 1024 total in 1 blocks; 280
free (0 chunks); 744 used
pg_type_typname_nsp_index: 1024 total in 1 blocks; 280 free (0
chunks); 744 used
pg_opfamily_oid_index: 1024 total in 1 blocks; 344 free (0 chunks); 680 used
pg_class_oid_index: 1024 total in 1 blocks; 304 free (0 chunks); 720 used
pg_proc_proname_args_nsp_index: 1024 total in 1 blocks; 192 free
(0 chunks); 832 used
pg_attribute_relid_attnum_index: 1024 total in 1 blocks; 240 free
(0 chunks); 784 used
pg_proc_oid_index: 1024 total in 1 blocks; 344 free (0 chunks); 680 used
pg_language_oid_index: 1024 total in 1 blocks; 344 free (0 chunks); 680 used
pg_namespace_oid_index: 1024 total in 1 blocks; 304 free (0
chunks); 720 used
pg_database_oid_index: 1024 total in 1 blocks; 304 free (0 chunks); 720 used
pg_amproc_fam_proc_index: 1024 total in 1 blocks; 88 free (0
chunks); 936 used
pg_authid_rolname_index: 1024 total in 1 blocks; 344 free (0
chunks); 680 used
pg_foreign_server_name_index: 1024 total in 1 blocks; 344 free (0
chunks); 680 used
pg_attribute_relid_attnam_index: 1024 total in 1 blocks; 280 free
(0 chunks); 744 used
pg_conversion_oid_index: 1024 total in 1 blocks; 344 free (0
chunks); 680 used
pg_user_mapping_user_server_index: 1024 total in 1 blocks; 280
free (0 chunks); 744 used
pg_conversion_name_nsp_index: 1024 total in 1 blocks; 280 free (0
chunks); 744 used
MdSmgr: 8192 total in 1 blocks; 7408 free (0 chunks); 784 used
LOCALLOCK hash: 8192 total in 1 blocks; 3912 free (0 chunks); 4280 used
Timezones: 79320 total in 2 blocks; 5968 free (0 chunks); 73352 used
ErrorContext: 8192 total in 1 blocks; 8176 free (0 chunks); 16 used