ower than
<ACRONYM
CLASS="ACRONYM"
>ARC</ACRONYM
> for some work loads.  A better cache management algorithm
will appear in 8.1.</P
></LI
><LI
><P
>Planner adjustments to improve behavior on freshly-created
tables (Tom)</P
></LI
><LI
><P
>Allow plpgsql to assign to an element of an array that is
initially <TT
CLASS="LITERAL"
>NULL</TT
> (Tom)</P
><P
>Formerly the array would remain <TT
CLASS="LITERAL"
>NULL</TT
>, but now it becomes a
single-element array.  The main SQL engine was changed to handle
<TT
CLAS