<idle> issue?

[Emi Lu <emilu@xxxxxxxxxxxxxxxxx>]

Hello List,

May I know will <idle> cause any potential performance issues for psql8.3 please?
version (PostgreSQL 8.3.18 on x86_64-unknown-linux-gnu, compiled by GCC 4.1.2)

E.g., got 10 idle connections for 10 days.
 select current_query from pg_stat_activity  where usename ='test';
                              current_query                              
--------------------------------------------------------------------------
 <IDLE>
 <IDLE>
 <IDLE>
 <IDLE>
 <IDLE>
 <IDLE>
 <IDLE>
 <IDLE>
 <IDLE>
 <IDLE>

Thanks a lot!
Emi