   once, not during each connection (Amit Kapila)
       </P
><P
>        This is similar to how <TT
CLASS="FILENAME"
>pg_hba.conf</TT
> is processed.
       </P
></LI
></UL
></DIV
><DIV
CLASS="SECT4"
><H4
CLASS="SECT4"
><A
NAME="AEN114375"
>E.2.3.1.7. Server Settings</A
></H4
><P
></P
><UL
><LI
><P
>        Greatly reduce System V <A
HREF="kernel-resources.html#SYSVIPC"
>shared
        memory</A
> requirements (Robert Haas)
       </P
><P
>        On Unix-like systems, <CODE
CLASS="FUNCTION"
>mmap()</CODE
