Sequences of temporary tables (auto-increment or identity columns) were…

Sequences of temporary tables (auto-increment or identity columns) were persisted unnecessarily in the database file, and were not removed when re-opening the database.

h2/src/main/org/h2/schema/Sequence.java

@@ -302,7 +302,9 @@ public class Sequence extends SchemaObjectBase {
         long realValue = value;
         try {
             value = valueWithMargin;
-            database.update(session, this);
+            if (!isTemporary()) {
+                database.update(session, this);
+            }
         } finally {
             value = realValue;
         }

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

@@ -32,6 +32,7 @@ public class TestTempTables extends TestBase {
     @Override
     public void test() throws SQLException {
         deleteDb("tempTables");
+        testTempSequence();
         testTempFileResultSet();
         testTempTableResultSet();
         testTransactionalTemp();
@@ -46,6 +47,21 @@ public class TestTempTables extends TestBase {
         c2.close();
         deleteDb("tempTables");
     }
+    
+    private void testTempSequence() throws SQLException {
+        deleteDb("tempTables");
+        Connection conn = getConnection("tempTables");
+        Statement stat = conn.createStatement();
+        stat.execute("create local temporary table test(id identity)");
+        stat.execute("insert into test values(null)");
+        stat.execute("shutdown");
+        conn.close();
+        conn = getConnection("tempTables");
+        ResultSet rs = conn.createStatement().executeQuery(
+                "select * from information_schema.sequences");
+        assertFalse(rs.next());
+        conn.close();
+    }
 
     private void testTempFileResultSet() throws SQLException {
         deleteDb("tempTables");