Column names could not be named "UNIQUE" (with the quotes).

h2/src/main/org/h2/command/Parser.java

@@ -3171,6 +3171,9 @@ public class Parser {
             }
             return getKeywordOrIdentifier(s, "TRUE", TRUE);
         case 'U':
+            if ("UNIQUE".equals(s)) {
+                return KEYWORD;
+            }
             return getKeywordOrIdentifier(s, "UNION", KEYWORD);
         case 'W':
             return getKeywordOrIdentifier(s, "WHERE", KEYWORD);

h2/src/test/org/h2/test/db/TestCases.java

@@ -44,6 +44,7 @@ public class TestCases extends TestBase {
         if (config.memory || config.logMode == 0) {
             return;
         }
+        testReservedKeywordReconnect();
         testSpecialSQL();
         testUpperCaseLowerCaseDatabase();
         testManualCommitSet();
@@ -67,6 +68,22 @@ public class TestCases extends TestBase {
         deleteDb("cases");
     }
 
+    private void testReservedKeywordReconnect() throws SQLException {
+        if (config.memory) {
+            return;
+        }
+        deleteDb("cases");
+        Connection conn = getConnection("cases");
+        Statement stat = conn.createStatement();
+        stat.execute("create table \"UNIQUE\"(\"UNIQUE\" int)");
+        conn.close();
+        conn = getConnection("cases");
+        stat = conn.createStatement();
+        stat.execute("select \"UNIQUE\" from \"UNIQUE\"");
+        stat.execute("drop table \"UNIQUE\"");
+        conn.close();
+    }
+
     private void testInvalidDatabaseName() throws SQLException {
         if (config.memory) {
             return;