Howdy, Few additional questions:
1. How many concurrent, active connections are running when these BIND problems occur? select count(*) from pg_stat_activity where state in ('active','idle in transaction') 2. Are the queries using gigantic IN (<big list>) values? 3. Perhaps unrelated, but islog_temp_files turned on, and if so, do you have a lot of logs related to that? Regards, Michael Vitale, just another PG DBA