 foreign data wrappers
        (Etsuro Fujita, Shigeru Hanada, Tom Lane)
       </P
><P
>        Wrappers can now provide multiple access <SPAN
CLASS="QUOTE"
>"paths"</SPAN
> for their
        tables, allowing more flexibility in join planning.
       </P
></LI
><LI
><P
>        Recognize self-contradictory restriction clauses for non-table
        relations (Tom Lane)
       </P
><P
>        This check is only performed when <A
HREF="runtime-config-query.html#GUC-CONSTRAINT-EXCLUSION"
><TT
CLASS="VARNAME"
