Why my Postgres 9.3 database is logging crazily autovacuum alerts The latest days, Postgres has started to log very frequently (about 100 logs per second!!!!) this kind of traces:

autovacuum: found orphan temp table "pg_temp_5"."p14528" in database "ma_prc_lim_absa_z5"


Is this a real problem?
If it isn't, how can I filter them?
It's a temporary table that wasn't removed automatically when it should have.

The fix from the point of view of a DBA is to simply drop the table manually.

There are several references to this problem on mailing lists. See for instance
[bug fix] Suppress "autovacuum: found orphan temp table" message
for a discussion on this subject.