"ERROR: could not access status of transaction" (after upgrding from 9.3.2 to 9.3.4?)

Hi all,

every weekend we use to run a batch that makes reindex/cluster of our main db.

This weekend we observed this error in the log :

2014-07-19 23:00:41 GMT 172.30.2.200(53959) dba mdn 1265998975 53caf874.6826 - ERROR: could not access status of transaction 1067517164
2014-07-19 23:00:41 GMT 172.30.2.200(53959) dba mdn 1265998975 53caf874.6826 - DETAIL: Could not open file "pg_clog/03FA": No such file or directory.
2014-07-19 23:00:41 GMT 172.30.2.200(53959) dba mdn 1265998975 53caf874.6826 - STATEMENT: cluster pk__cat_taglio on "anamat"."cat_taglio"

The previous weekend the job worked fine.

The only thing that happened in the middle (AFAIK) is that on the 17th we apply the minor upgrade of postgresql from 9.3.2 to 9.3.4.

Can you please help me to understand the cause of this corruption, how much is serious and the its correct resolution ?

By the way the data in the table seems ok : i can dump the table, I can select the data inside it.

SInce this table doesn't change frequently, we are considering a dump/delete/restore. Will this fix the problem in yuor opinion ?

Thanks a lot

Marco Cassiano