Fix for docs from Patrick Welche:

! 	DIFFERENCE (− or ∖): builds the set difference of
  	two tables. Let <classname>R</classname> and
<classname>S</classname>
again be two tables with the same
  	arity. <classname>R</classname> - <classname>S</classname>
--- 488,494 ----

        <listitem>
        <para>
! 	EXCEPT (&minus; or &setmn;): builds the set difference of

diff --git a/doc/src/sgml/sql.sgml b/doc/src/sgml/sql.sgml
index ed58ae4131d19b53a000e21d3998d076f8616c57..fbb1a94b6a4479f0ac3cdae48d7f1469fb0d2226 100644 (file)
--- a/doc/src/sgml/sql.sgml
+++ b/doc/src/sgml/sql.sgml
@@ -488,7 +488,7 @@ attributes are taken from. We often write a relation scheme as
 
       <listitem>
        <para>
-       DIFFERENCE (&minus; or &setmn;): builds the set difference of
+       EXCEPT (&minus; or &setmn;): builds the set difference of
        two tables. Let <classname>R</classname> and <classname>S</classname>
        again be two tables with the same
        arity. <classname>R</classname> - <classname>S</classname>