The following bug has been logged online:
Bug reference: 1558
Logged by: Cade Cairns
Email address: cadec(at)otii(dot)com
PostgreSQL version: 8.0.1
Operating system: MacOSX 10.3.8
Description: memory leak in libpq connectDBStart()
Details:
The leak occurs when libpq can not establish a connection to the database
server, in my case when it is not running. I believe that when a caller
calls PQreset() or PQresetStart(), the subsequent call to connectDBStart()
clobbers the previous value of addrlist in the PGconn. Presumably,
closePGconn() should be destroying this value.