Entity-ify a few new uses of literal <, >, and &.

doc/src/sgml/ecpg.sgml

-<!-- $PostgreSQL: pgsql/doc/src/sgml/ecpg.sgml,v 1.97 2010/02/19 00:15:25 momjian Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/ecpg.sgml,v 1.98 2010/02/27 04:29:44 tgl Exp $ -->
 
 <chapter id="ecpg">
  <title><application>ECPG</application> - Embedded <acronym>SQL</acronym> in C</title>
@@ -3204,9 +3204,9 @@ EXEC SQL INCLUDE sqlda.h;
 
     EXEC SQL DESCRIBE mystmt INTO sqlda;
 
-    printf("# of fields: %d\n", sqlda->sqld);
-    for (i = 0; i < sqlda->sqld; i++)
-      printf("field %d: \"%s\"\n", sqlda->sqlvar[i]->sqlname);
+    printf("# of fields: %d\n", sqlda-&gt;sqld);
+    for (i = 0; i &lt; sqlda-&gt;sqld; i++)
+      printf("field %d: \"%s\"\n", sqlda-&gt;sqlvar[i]-&gt;sqlname);
 
     EXEC SQL DECLARE mycursor CURSOR FOR mystmt;
     EXEC SQL OPEN mycursor;
@@ -3220,7 +3220,7 @@ EXEC SQL INCLUDE sqlda.h;
     EXEC SQL CLOSE mycursor;
 
     free(sqlda); /* The main structure is all to be free(),
-                  * sqlda and sqlda->sqlvar is in one allocated area */
+                  * sqlda and sqlda-&gt;sqlvar is in one allocated area */
 </programlisting>
     For more information, see the <literal>sqlda.h</> header and the
     <literal>src/interfaces/ecpg/test/compat_informix/sqlda.pgc</literal> regression test.

doc/src/sgml/hstore.sgml

-<!-- $PostgreSQL: pgsql/doc/src/sgml/hstore.sgml,v 1.7 2010/02/17 04:19:37 tgl Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/hstore.sgml,v 1.8 2010/02/27 04:29:44 tgl Exp $ -->
 
 <sect1 id="hstore">
  <title>hstore</title>
@@ -401,7 +401,7 @@ b
 
   <para>
    <type>hstore</> has GiST and GIN index support for the <literal>@&gt;</>,
-   <literal>?</>, <literal>?&</> and <literal>?|</> operators. For example:
+   <literal>?</>, <literal>?&amp;</> and <literal>?|</> operators. For example:
   </para>
   <programlisting>
 CREATE INDEX hidx ON testhstore USING GIST (h);

doc/src/sgml/ref/create_table.sgml

 <!--
-$PostgreSQL: pgsql/doc/src/sgml/ref/create_table.sgml,v 1.122 2010/02/22 23:51:40 momjian Exp $
+$PostgreSQL: pgsql/doc/src/sgml/ref/create_table.sgml,v 1.123 2010/02/27 04:29:44 tgl Exp $
 PostgreSQL documentation
 -->
 
@@ -471,7 +471,7 @@ CREATE [ [ GLOBAL | LOCAL ] { TEMPORARY | TEMP } ] TABLE <replaceable class="PAR
       For example, you can specify a constraint that
       no two rows in the table contain overlapping circles
       (see <xref linkend="datatype-geometric">) by using the
-      <literal>&&</> operator.
+      <literal>&amp;&amp;</> operator.
      </para>
 
      <para>
@@ -1183,7 +1183,7 @@ WITH (fillfactor=70);
 <programlisting>
 CREATE TABLE circles (
     c circle,
-    EXCLUDE USING gist (c WITH &&)
+    EXCLUDE USING gist (c WITH &amp;&amp;)
 );
 </programlisting>
   </para>