Update key words table for 9.3

Author: petere

doc/src/sgml/keywords.sgml

@@ -1644,6 +1644,13 @@
     <entry>reserved</entry>
     <entry>reserved</entry>
    </row>
+   <row>
+    <entry><token>EVENT</token></entry>
+    <entry>non-reserved</entry>
+    <entry></entry>
+    <entry></entry>
+    <entry></entry>
+   </row>
    <row>
     <entry><token>EVERY</token></entry>
     <entry></entry>
@@ -2652,6 +2659,13 @@
     <entry>non-reserved</entry>
     <entry></entry>
    </row>
+   <row>
+    <entry><token>MATERIALIZED</token></entry>
+    <entry>non-reserved</entry>
+    <entry></entry>
+    <entry></entry>
+    <entry></entry>
+   </row>
    <row>
     <entry><token>MAX</token></entry>
     <entry></entry>
@@ -3618,6 +3632,13 @@
     <entry>reserved</entry>
     <entry></entry>
    </row>
+   <row>
+    <entry><token>REFRESH</token></entry>
+    <entry>non-reserved</entry>
+    <entry></entry>
+    <entry></entry>
+    <entry></entry>
+   </row>
    <row>
     <entry><token>REGR_AVGX</token></entry>
     <entry></entry>