提交 82df28c0 authored 作者: Thomas Mueller's avatar Thomas Mueller

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上级 5eff30c5
...@@ -15,7 +15,7 @@ Change Log ...@@ -15,7 +15,7 @@ Change Log
<h2>Next Version (unreleased)</h2> <h2>Next Version (unreleased)</h2>
<ul> <ul>
</li><li>When using multi-version concurrency (MVCC=TRUE), duplicate rows could appear in the result set when running queries <li>When using multi-version concurrency (MVCC=TRUE), duplicate rows could appear in the result set when running queries
with uncommitted changes in the same session. with uncommitted changes in the same session.
</li><li>H2 Console: remote connections were very slow because getHostName/getRemoteHost was used. </li><li>H2 Console: remote connections were very slow because getHostName/getRemoteHost was used.
Fixed (now using getHostAddress/getRemoteAddr. Fixed (now using getHostAddress/getRemoteAddr.
......
...@@ -13,13 +13,13 @@ H2 In Use and Links ...@@ -13,13 +13,13 @@ H2 In Use and Links
<h1>H2 In Use and Links</h1> <h1>H2 In Use and Links</h1>
<h2>Books</h2><p> <h2>Books</h2>
<a href="http://code.google.com/p/seaminaction/wiki/GettingStarted">
<a href="http://code.google.com/p/seaminaction/wiki/GettingStarted%20">Seam In Action</a> Seam In Action</a>
<h2>Extensions</h2> <h2>Extensions</h2>
<a href="http://geosysin.iict.ch/irstv-trac/wiki/H2spatial/Download"> <a href="http://geosysin.iict.ch/irstv-trac/wiki/H2spatial/Download">
Spatial capabilities</a><br /> Spatial capabilities</a>
<h2>Blogs</h2> <h2>Blogs</h2>
<a href="http://www.bluedevel.com/blog/?p=12"> <a href="http://www.bluedevel.com/blog/?p=12">
......
...@@ -505,6 +505,32 @@ The steps to connect to a H2 database are: ...@@ -505,6 +505,32 @@ The steps to connect to a H2 database are:
<p> <p>
Now you can access the database stored in the directory C:/temp. Now you can access the database stored in the directory C:/temp.
</p> </p>
<p>
To use H2 in NeoOffice (OpenOffice without X11):
</p>
<ul><li>In NeoOffice, go to [NeoOffice], [Preferences]
</li><li>Look for the page under [NeoOffice], [Java]
</li><li>Click [Classpath], [Add Archive...]
</li><li>Select your h2.jar (location is up to you, could be wherever you choose)
</li><li>Click [OK] (as much as needed), restart NeoOffice.
</li></ul>
<p>
Now, when creating a new database using the "Database Wizard":
</p>
<ul><li>Select "connect to existing database" and the type "jdbc". Click next.
</li><li>Enter your h2 database URL. The normal behavior of H2 is that a new db is created if it doesn't exist.
</li><li>Next step - up to you... you can just click finish and start working.
</li></ul>
<p>
Another solution to use H2 in NeoOffice is:
</p>
<ul><li>Package the h2 jar within an extension package
</li><li>Install it as a Java extension in NeoOffice
</li></ul>
<p>
This can be done by create it using the NetBeans OpenOffice plugin.
See also <a href="http://wiki.services.openoffice.org/wiki/Extensions_development_java">Extensions Development</a>.
</p>
<br /><a name="web_start"></a> <br /><a name="web_start"></a>
<h2>Java Web Start / JNLP</h2> <h2>Java Web Start / JNLP</h2>
......
...@@ -234,6 +234,13 @@ public class SysProperties { ...@@ -234,6 +234,13 @@ public class SysProperties {
/** /**
* System property <code>h2.optimizeDistinct</code> (default: true).<br /> * System property <code>h2.optimizeDistinct</code> (default: true).<br />
* Improve the performance of simple DISTINCT queries if an index is available for the given column. * Improve the performance of simple DISTINCT queries if an index is available for the given column.
* The optimization is used if:
* <ul><li>The select is a single column query without condition
* </li><li>The query contains only one table, and no group by
* </li><li>There is only one table involved
* </li><li>There is an ascending index on the column
* </li><li>The selectivity of the column is below 20
* </li></ul>
*/ */
public static final boolean OPTIMIZE_DISTINCT = getBooleanSetting("h2.optimizeDistinct", true); public static final boolean OPTIMIZE_DISTINCT = getBooleanSetting("h2.optimizeDistinct", true);
......
...@@ -30,7 +30,7 @@ import org.h2.value.ValueNull; ...@@ -30,7 +30,7 @@ import org.h2.value.ValueNull;
* <ul> * <ul>
* <li>There is one {@link BtreeHead} that points to the root page. * <li>There is one {@link BtreeHead} that points to the root page.
* The head always stays where it is. * The head always stays where it is.
* </li><li>There is a number of {@link BtreePage}s. Each page is eighter * </li><li>There is a number of {@link BtreePage}s. Each page is either
* a {@link BtreeNode} or a {@link BtreeLeaf}. * a {@link BtreeNode} or a {@link BtreeLeaf}.
* </li><li>A node page links to other leaf pages or to node pages. * </li><li>A node page links to other leaf pages or to node pages.
* Leaf pages don't point to other pages (but may have a parent). * Leaf pages don't point to other pages (but may have a parent).
......
...@@ -1437,7 +1437,7 @@ class WebThread extends Thread implements DatabaseEventListener { ...@@ -1437,7 +1437,7 @@ class WebThread extends Thread implements DatabaseEventListener {
// TODO meta data: more supports methods (I'm tired now) // TODO meta data: more supports methods (I'm tired now)
rs.addRow(new String[] { "meta.usesLocalFilePerTable", "" + meta.usesLocalFilePerTable() }); rs.addRow(new String[] { "meta.usesLocalFilePerTable", "" + meta.usesLocalFilePerTable() });
rs.addRow(new String[] { "meta.usesLocalFiles", "" + meta.usesLocalFiles() }); rs.addRow(new String[] { "meta.usesLocalFiles", "" + meta.usesLocalFiles() });
// #ifdef JDK14 //#ifdef JDK14
rs.addRow(new String[] { "conn.getHoldability", "" + conn.getHoldability() }); rs.addRow(new String[] { "conn.getHoldability", "" + conn.getHoldability() });
rs.addRow(new String[] { "meta.getDatabaseMajorVersion", "" + meta.getDatabaseMajorVersion() }); rs.addRow(new String[] { "meta.getDatabaseMajorVersion", "" + meta.getDatabaseMajorVersion() });
rs.addRow(new String[] { "meta.getDatabaseMinorVersion", "" + meta.getDatabaseMinorVersion() }); rs.addRow(new String[] { "meta.getDatabaseMinorVersion", "" + meta.getDatabaseMinorVersion() });
...@@ -1447,7 +1447,7 @@ class WebThread extends Thread implements DatabaseEventListener { ...@@ -1447,7 +1447,7 @@ class WebThread extends Thread implements DatabaseEventListener {
rs.addRow(new String[] { "meta.getSQLStateType", "" + meta.getSQLStateType() }); rs.addRow(new String[] { "meta.getSQLStateType", "" + meta.getSQLStateType() });
rs.addRow(new String[] { "meta.supportsGetGeneratedKeys", "" + meta.supportsGetGeneratedKeys() }); rs.addRow(new String[] { "meta.supportsGetGeneratedKeys", "" + meta.supportsGetGeneratedKeys() });
rs.addRow(new String[] { "meta.locatorsUpdateCopy", "" + meta.locatorsUpdateCopy() }); rs.addRow(new String[] { "meta.locatorsUpdateCopy", "" + meta.locatorsUpdateCopy() });
// #endif //#endif
return rs; return rs;
} else if (sql.startsWith("@CATALOGS")) { } else if (sql.startsWith("@CATALOGS")) {
return meta.getCatalogs(); return meta.getCatalogs();
...@@ -1491,7 +1491,7 @@ class WebThread extends Thread implements DatabaseEventListener { ...@@ -1491,7 +1491,7 @@ class WebThread extends Thread implements DatabaseEventListener {
return meta.getUDTs(p[1], p[2], p[3], types); return meta.getUDTs(p[1], p[2], p[3], types);
} else if (sql.startsWith("@TYPE_INFO")) { } else if (sql.startsWith("@TYPE_INFO")) {
return meta.getTypeInfo(); return meta.getTypeInfo();
// #ifdef JDK14 //#ifdef JDK14
} else if (sql.startsWith("@SUPER_TYPES")) { } else if (sql.startsWith("@SUPER_TYPES")) {
String[] p = split(sql); String[] p = split(sql);
return meta.getSuperTypes(p[1], p[2], p[3]); return meta.getSuperTypes(p[1], p[2], p[3]);
...@@ -1501,7 +1501,7 @@ class WebThread extends Thread implements DatabaseEventListener { ...@@ -1501,7 +1501,7 @@ class WebThread extends Thread implements DatabaseEventListener {
} else if (sql.startsWith("@ATTRIBUTES")) { } else if (sql.startsWith("@ATTRIBUTES")) {
String[] p = split(sql); String[] p = split(sql);
return meta.getAttributes(p[1], p[2], p[3], p[4]); return meta.getAttributes(p[1], p[2], p[3], p[4]);
// #endif //#endif
} }
return null; return null;
} }
...@@ -1595,9 +1595,9 @@ class WebThread extends Thread implements DatabaseEventListener { ...@@ -1595,9 +1595,9 @@ class WebThread extends Thread implements DatabaseEventListener {
session.addCommand(sql); session.addCommand(sql);
if (generatedKeys) { if (generatedKeys) {
rs = null; rs = null;
// #ifdef JDK14 //#ifdef JDK14
rs = stat.getGeneratedKeys(); rs = stat.getGeneratedKeys();
// #endif //#endif
} else { } else {
if (!isResultSet) { if (!isResultSet) {
buff.append("${text.result.updateCount}: " + stat.getUpdateCount()); buff.append("${text.result.updateCount}: " + stat.getUpdateCount());
......
...@@ -10,7 +10,7 @@ Initial Developer: H2 Group ...@@ -10,7 +10,7 @@ Initial Developer: H2 Group
<link rel="stylesheet" type="text/css" href="stylesheet.css" /> <link rel="stylesheet" type="text/css" href="stylesheet.css" />
</head> </head>
<body class="result" onkeyup="auto(event)"> <body class="result" onkeyup="auto(event)">
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<script type="text/javascript"> <script type="text/javascript">
<!-- <!--
function set(s) { function set(s) {
......
...@@ -262,13 +262,13 @@ ShutdownHandler { ...@@ -262,13 +262,13 @@ ShutdownHandler {
// the main panel keeps everything together // the main panel keeps everything together
Panel mainPanel = new Panel(layout); Panel mainPanel = new Panel(layout);
GridBagConstraints contraintsPanel = new GridBagConstraints(); GridBagConstraints constraintsPanel = new GridBagConstraints();
contraintsPanel.gridx = 0; constraintsPanel.gridx = 0;
contraintsPanel.weightx = 1.0D; constraintsPanel.weightx = 1.0D;
contraintsPanel.weighty = 1.0D; constraintsPanel.weighty = 1.0D;
contraintsPanel.fill = GridBagConstraints.BOTH; constraintsPanel.fill = GridBagConstraints.BOTH;
contraintsPanel.insets = new Insets(0, 10, 0, 10); constraintsPanel.insets = new Insets(0, 10, 0, 10);
contraintsPanel.gridy = 0; constraintsPanel.gridy = 0;
GridBagConstraints constraintsButton = new GridBagConstraints(); GridBagConstraints constraintsButton = new GridBagConstraints();
constraintsButton.gridx = 0; constraintsButton.gridx = 0;
...@@ -307,7 +307,7 @@ ShutdownHandler { ...@@ -307,7 +307,7 @@ ShutdownHandler {
startBrowser.addActionListener(this); startBrowser.addActionListener(this);
startBrowser.setFont(font); startBrowser.setFont(font);
mainPanel.add(startBrowser, constraintsButton); mainPanel.add(startBrowser, constraintsButton);
frame.add(mainPanel, contraintsPanel); frame.add(mainPanel, constraintsPanel);
int width = 300, height = 120; int width = 300, height = 120;
frame.setSize(width, height); frame.setSize(width, height);
......
...@@ -420,7 +420,7 @@ public class Csv implements SimpleRowSource { ...@@ -420,7 +420,7 @@ public class Csv implements SimpleRowSource {
endOfLine = true; endOfLine = true;
break; break;
} else { } else {
// undelimited value // un-delimited value
StringBuffer buff = new StringBuffer(); StringBuffer buff = new StringBuffer();
buff.append((char) ch); buff.append((char) ch);
while (true) { while (true) {
...@@ -436,7 +436,7 @@ public class Csv implements SimpleRowSource { ...@@ -436,7 +436,7 @@ public class Csv implements SimpleRowSource {
} }
buff.append((char) ch); buff.append((char) ch);
} }
// check undelimited value for nullString // check un-delimited value for nullString
value = readNull(buff.toString().trim()); value = readNull(buff.toString().trim());
break; break;
} }
......
...@@ -157,16 +157,7 @@ java org.h2.test.TestAll timer ...@@ -157,16 +157,7 @@ java org.h2.test.TestAll timer
/* /*
test t
There is now an optimization for SELECT DISTINCT (see http://www.h2database.com/javadoc/org/h2/constant/SysProperties.html#h2.optimizeDistinct) so that the index is used. There are a few conditions:
- It must be as simple as: SELECT DISTINCT <column> FROM <table>
- The column must be indexed
- The selectivity must be quite low, that is, below 20. You need to run ANALYZE or set the selectivity manually.
I will add this to the docs.
remove old in use, links remove old in use, links
......
...@@ -64,7 +64,7 @@ public class XMLChecker { ...@@ -64,7 +64,7 @@ public class XMLChecker {
checkXML(s, !suffix.equals("xml")); checkXML(s, !suffix.equals("xml"));
} catch (Exception e) { } catch (Exception e) {
last = e; last = e;
System.out.println("ERROR: " + e.toString()); System.out.println("ERROR in file " + fileName + " " + e.toString());
} }
if (last != null) { if (last != null) {
last.printStackTrace(); last.printStackTrace();
......
...@@ -529,3 +529,10 @@ simulates dispatcher servlets chf destruction separating consulting reached ...@@ -529,3 +529,10 @@ simulates dispatcher servlets chf destruction separating consulting reached
unreferenced longest enum jira jackcess track unreleased processors nearest fits shadow unreferenced longest enum jira jackcess track unreleased processors nearest fits shadow
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lifespan sesar flexible institutes similarity myna interview substructure seasar neo responses orionserver frontend outperforms nih books solyp
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notes curves coldrick orf smart oriented usd genomics frameworks center dose communication fox packman fault life handles delimited willuhn sylvain
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\ No newline at end of file
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