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h2/src/docsrc/html/changelog.html

@@ -18,7 +18,15 @@ Change Log
 <h1>Change Log</h1>
 
 <h2>Next Version (unreleased)</h2>
-<ul><li>New system property h2.browser to set the browser to use.
+<ul><li>Aliases for built-in data types (such as MEDIUMBLOB which is an alias for BLOB) 
+    can now be re-mapped to another data type using CREATE DOMAIN. However 
+    main built-in data types (such as INTEGER) can not be re-mapped.
+</li><li>The Japanese translation has been completed by Masahiro Ikemoto. 
+    Thanks a lot!
+</li><li>Improved PostgreSQL compatibility for NEXTVAL and CURRVAL.
+</li><li>Less heap memory is needed when multiple databases are open at the same time: The memory reserve 
+    (used to rollback after out of memory) is now global and no longer allocated for each database separately.
+</li><li>New system property h2.browser to set the browser to use.
 </li><li>To start the browser, java.awt.Desktop.browse is now used if available.
 </li></ul>
 

h2/src/docsrc/html/roadmap.html

@@ -32,6 +32,7 @@ Of course, patches are always welcome, but are not always applied as is. Patches
 </li><li>Support large updates (use the transaction log to undo).
 </li><li>Shutdown compact
 </li><li>Server side cursors
+</li><li>Support nested outer joins (see todo.txt).
 </li></ul>
 
 <h2>Priority 2</h2>
@@ -45,6 +46,7 @@ Of course, patches are always welcome, but are not always applied as is. Patches
 </li><li>Optimize .. OR .. to UNION if the cost is lower
 </li><li>Index organized tables CREATE TABLE...(...) ORGANIZATION INDEX (store in data file) (probably file format changes are required for rowId)
 </li><li>Better space re-use in the files after deleting data: shrink the data file without closing the database (if the end of the file is empty)
+</li><li>Implement INSTEAD OF trigger (for views, tables, metadata tables).
 </li><li>Full outer joins
 </li><li>Support trigger on the tables information_schema.tables and ...columns
 </li><li>Test very large databases and LOBs (up to 256 GB)
@@ -242,7 +244,6 @@ Of course, patches are always welcome, but are not always applied as is. Patches
 </li><li>Add a role DBA (like ADMIN).
 </li><li>Better support multiple processors for in-memory databases.
 </li><li>Access rights: remember the owner of an object. COMMENT: allow owner of object to change it.
-</li><li>Implement INSTEAD OF trigger.
 </li><li>Access rights: Finer grained access control (grant access for specific functions)
 </li><li>Support N'text'
 </li><li>Support SCOPE_IDENTITY() to avoid problems when inserting rows in a trigger

h2/src/main/org/h2/constant/SysProperties.java

@@ -107,6 +107,7 @@ public class SysProperties {
     /**
      * System property <code>h2.browser</code> (default: null).<br />
      * The preferred browser to use. If not set, the default browser is used.
+     * For Windows, to use the Internet Explorer, set this property to 'explorer'.
      */
     public static final String BROWSER = getStringSetting("h2.browser", null);
 

h2/src/main/org/h2/store/DiskFile.java

@@ -1199,6 +1199,13 @@ public class DiskFile implements CacheWriter {
                 }
             });
             // first write all deleted entries
+            // because delete entries are always 1 block, 
+            // while not-deleted entries can be many blocks
+            // so for example: 
+            // (A) block: 1 (delete) 
+            // (B) block: 2 (delete) 
+            // (C) block: 1 ('Hello', 2 blocks long)
+            // needs to be written in this order and not (A) (C) (B)
             RedoLogRecord last = null;
             for (int i = 0; i < redoBuffer.size(); i++) {
                 RedoLogRecord entry = (RedoLogRecord) redoBuffer.get(i);

h2/src/main/org/h2/table/TableFilter.java

@@ -721,5 +721,9 @@ public class TableFilter implements ColumnResolver {
     public Expression optimize(ExpressionColumn expressionColumn, Column column) {
         return expressionColumn;
     }
+    
+    public String toString() {
+        return alias != null ? alias : "" + table;
+    }
 
 }

h2/src/test/org/h2/test/TestAll.java

@@ -92,6 +92,7 @@ import org.h2.test.synth.TestJoin;
 import org.h2.test.synth.TestKill;
 import org.h2.test.synth.TestKillRestart;
 import org.h2.test.synth.TestKillRestartMulti;
+import org.h2.test.synth.TestMultiThreaded;
 import org.h2.test.synth.TestRandomSQL;
 import org.h2.test.synth.TestTimer;
 import org.h2.test.synth.sql.TestSynth;
@@ -280,12 +281,7 @@ java org.h2.test.TestAll timer
 
 /*
 
-allow to map TEXT to VARCHAR
-PostgreSQL compatibility: TEXT seems to be VARCHAR there.
-
-http://validator.w3.org/
-test web site (including search, main, web main)
-test with firefox 3, internet explorer, opera, safari, google chrome
+test web site with firefox 3, internet explorer, opera, safari, google chrome
 
 test with 1.0
 
@@ -296,8 +292,6 @@ osgi: create a sample application, test, document
 
 merge join test case
 
-osgi (derby, hsqldb)
-
 auto_reconnect
 implemented:
 - auto_server includes auto_reconnect
@@ -380,7 +374,7 @@ http://www.w3schools.com/sql/
             test.runTests();
         }
         TestPerformance.main(new String[]{ "-init", "-db", "1"});
-        System.out.println("done (" + (System.currentTimeMillis() - time) + " ms)");
+        System.out.println(TestBase.formatTime(System.currentTimeMillis() - time) + " total");
     }
 
     /**
@@ -579,6 +573,7 @@ http://www.w3schools.com/sql/
         new TestRandomSQL().runTest(this);
         new TestKillRestart().runTest(this);
         new TestKillRestartMulti().runTest(this);
+        new TestMultiThreaded().runTest(this);
 
         // unit
         new TestBitField().runTest(this);

h2/src/test/org/h2/test/TestBase.java

@@ -392,13 +392,11 @@ public abstract class TestBase {
     /**
      * Print a message, prepended with the specified time in milliseconds.
      * 
-     * @param time the milliseconds
+     * @param millis the time in milliseconds
      * @param s the message
      */
-    static void printlnWithTime(long time, String s) {
-        String t = "0000000000" + time;
-        t = t.substring(t.length() - 6);
-        System.out.println(t + " " + s);
+    static void printlnWithTime(long millis, String s) {
+        System.out.println(formatTime(millis) + " " + s);
     }
 
     /**
@@ -410,6 +408,17 @@ public abstract class TestBase {
         SimpleDateFormat dateFormat = new SimpleDateFormat("HH:mm:ss");
         println(dateFormat.format(new java.util.Date()) + " " + s);
     }
+    
+    /**
+     * Format the time in the format hh:mm:ss.1234 where 1234 is milliseconds.
+     * 
+     * @param millis the time in milliseconds
+     * @return the formatted time
+     */
+    static String formatTime(long millis) {
+        return new java.sql.Time(java.sql.Time.valueOf("0:0:0").getTime() + millis).toString() 
+        + "." + ("" + (1000 + (millis % 1000))).substring(1);
+    }    
 
     /**
      * Delete all database files for this database.

h2/src/test/org/h2/test/synth/TestMultiThreaded.java

+/*
+ * Copyright 2004-2008 H2 Group. Multiple-Licensed under the H2 License, 
+ * Version 1.0, and under the Eclipse Public License, Version 1.0
+ * (http://h2database.com/html/license.html).
+ * Initial Developer: H2 Group
+ */
+package org.h2.test.synth;
+
+import java.sql.Connection;
+import java.util.Random;
+
+import org.h2.test.TestBase;
+
+/**
+ * Tests the multi-threaded mode.
+ */
+public class TestMultiThreaded extends TestBase {
+
+    /**
+     * Run just this test.
+     * 
+     * @param a ignored
+     */
+    public static void main(String[] a) throws Exception {
+        TestBase.createCaller().init().test();
+    }
+
+    public void test() throws Exception {
+        if (config.mvcc) {
+            return;
+        }
+        int test;
+        deleteDb("multiThreaded");
+        int size = getSize(2, 4);
+        Connection[] conn = new Connection[size];
+        for(int i=0; i<size; i++) {
+            conn[i] = getConnection("multiThreaded;MULTI_THREADED=1");
+        }
+        Random random = new Random(1);
+        for(int i=0; i<size; i++) {
+            conn[i].close();
+        }
+    }
+
+}

h2/src/test/org/h2/test/todo/todo.txt

+Nested Outer Joins
+-----------------
+Example:
+create table a(x int);
+create table b(x int);
+create table c(x int, y int);
+insert into a values(1);
+insert into a values(2);
+insert into b values(3);
+insert into c values(1, 3);
+insert into c values(4, 5);
+select * from a left outer join (b left outer join c on b.x = c.y) on a.x = c.x;
+explain select * from a left outer join (b left outer join c on b.x = c.y) on a.x = c.x;
+drop table a;
+drop table b;
+drop table c;
+
+The following doesn't work correctly:
+TableFilter,
+    private void mapAndAddFilter(Expression on) throws SQLException {
+        on.mapColumns(this, 0);
+        if (join == null || on.isEverything(ExpressionVisitor.RESOLVED)) {
+          addFilterCondition(on, true);
+          on.createIndexConditions(session, this);
+        }
+        if (join != null) {
+            join.mapAndAddFilter(on);
+        }
+    }
+
 Auto Upgrade
 -----------------
 file conversion should be done automatically when the new engine connects.