UCTNAME"
>PGconn</TT
> you want to receive events about.  There is no
       limit, other than memory, on the number of event procedures that
       can be registered with a connection.  The function returns a non-zero
       value if it succeeds and zero if it fails.
      </P
><P
>       The <TT
CLASS="PARAMETER"
>proc</TT
> argument will be called when a libpq
       event is fired.  Its memory address is also used to lookup
       <TT
CLASS="LITERAL"
>instanceData</TT
>.  The <TT
CLASS="PARAMETER"
>name