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h2/src/docsrc/html/features.html
浏览文件 @ 76ef88ee
...@@ -216,6 +216,13 @@ http://www.h2database.com/html/roadmap.html ...@@ -216,6 +216,13 @@ http://www.h2database.com/html/roadmap.html
<td class="compareY">Yes</td> <td class="compareY">Yes</td>
<td class="compareY">Yes</td> <td class="compareY">Yes</td>
</tr><tr> </tr><tr>
<td>Explain Plan</td>
<td class="compareY">Yes</td>
<td class="compareN">No</td>
<td class="compareY">Yes</td>
<td class="compareY">Yes</td>
<td class="compareY">Yes</td>
</tr><tr>
<td>Clustering</td> <td>Clustering</td>
<td class="compareY">Yes</td> <td class="compareY">Yes</td>
<td class="compareN">No</td> <td class="compareN">No</td>
......
h2/src/docsrc/html/mainWeb.html
浏览文件 @ 76ef88ee
...@@ -78,9 +78,82 @@ Welcome to H2, the Java SQL database. The main feature of H2 are: ...@@ -78,9 +78,82 @@ Welcome to H2, the Java SQL database. The main feature of H2 are:
</td></tr> </td></tr>
<tr><td colspan="3" style="border: 0px; padding: 5px 0px 15px 0px;"> <tr><td colspan="3" style="border: 0px; padding: 5px 0px 15px 0px;">
<h3> Performance </h3> <h3>Features</h3>
<img src="images/performance.png" alt="Performance comparison" /><br /> <table style="width: 425px;"><tr>
Operations/second (higher is better) - <a href="performance.html">More information about this test</a> <th></th>
<th>H2</th>
<th>Derby</th>
<th>HSQLDB</th>
<th>MySQL</th>
<th>PostgreSQL</th>
</tr><tr>
<td>Pure Java</td>
<td class="compareY">Yes</td>
<td class="compareY">Yes</td>
<td class="compareY">Yes</td>
<td class="compareN">No</td>
<td class="compareN">No</td>
</tr><tr>
<td>In-Memory Mode</td>
<td class="compareY">Yes</td>
<td class="compareN">No</td>
<td class="compareY">Yes</td>
<td class="compareN">No</td>
<td class="compareN">No</td>
</tr><tr>
<td>Transaction Isolation</td>
<td class="compareY">Yes</td>
<td class="compareY">Yes</td>
<td class="compareN">No</td>
<td class="compareY">Yes</td>
<td class="compareY">Yes</td>
</tr><tr>
<td>Cost Based Optimizer</td>
<td class="compareY">Yes</td>
<td class="compareY">Yes</td>
<td class="compareN">No</td>
<td class="compareY">Yes</td>
<td class="compareY">Yes</td>
</tr><tr>
<td>Encrypted Database</td>
<td class="compareY">Yes</td>
<td class="compareY">Yes</td>
<td class="compareN">No</td>
<td class="compareN">No</td>
<td class="compareN">No</td>
</tr><tr>
<td>ODBC Driver</td>
<td class="compareY">Yes</td>
<td class="compareN">No</td>
<td class="compareN">No</td>
<td class="compareY">Yes</td>
<td class="compareY">Yes</td>
</tr><tr>
<td>Fulltext Search</td>
<td class="compareY">Yes</td>
<td class="compareN">No</td>
<td class="compareN">No</td>
<td class="compareY">Yes</td>
<td class="compareY">Yes</td>
</tr><tr>
<td>Multi Version Concurrency</td>
<td class="compareY">Yes</td>
<td class="compareN">No</td>
<td class="compareN">No</td>
<td class="compareN">No</td>
<td class="compareY">Yes</td>
</tr><tr>
<td>Footprint (jar/dll size)</td>
<td>~1 MB</td>
<td>~2 MB</td>
<td>~600 KB</td>
<td>~4 MB</td>
<td>~6 MB</td>
</tr>
</table>
<p>
See also the <a href="features.html#comparison">detailed comparison</a>.
</p>
</td></tr> </td></tr>
<tr><td colspan="3" style="border: 0px; background-color: #eee;"> <tr><td colspan="3" style="border: 0px; background-color: #eee;">
......
h2/src/docsrc/html/roadmap.html
浏览文件 @ 76ef88ee
...@@ -38,10 +38,9 @@ Of course, patches are always welcome, but are not always applied as is. Patches ...@@ -38,10 +38,9 @@ Of course, patches are always welcome, but are not always applied as is. Patches
<li>Improve test code coverage <li>Improve test code coverage
</li><li>Fulltext search: support streaming CLOB data. </li><li>Fulltext search: support streaming CLOB data.
</li><li>Optimize .. OR .. to IN(..) or UNION if the cost is lower </li><li>Optimize .. OR .. to IN(..) or UNION if the cost is lower
</li><li>Support OSGi: http://oscar-osgi.sourceforge.net, http://incubator.apache.org/felix/index.html
</li><li>Test multi-threaded in-memory db access </li><li>Test multi-threaded in-memory db access
</li><li>MVCC: Select for update should only lock the selected rows. </li><li>MVCC: Select for update should only lock the selected rows.
</li><li>Procedural language / script language (Javascript) </li><li>Procedural language / script language (Java, Javascript)
</li><li>Option to shutdown all the running servers (on the same VM). </li><li>Option to shutdown all the running servers (on the same VM).
</li><li>Optimize ID=? OR ID=?: convert to IN(...) </li><li>Optimize ID=? OR ID=?: convert to IN(...)
</li><li>Index organized tables CREATE TABLE...(...) ORGANIZATION INDEX (store in data file) (probably file format changes are required for rowId) </li><li>Index organized tables CREATE TABLE...(...) ORGANIZATION INDEX (store in data file) (probably file format changes are required for rowId)
...@@ -53,7 +52,6 @@ Of course, patches are always welcome, but are not always applied as is. Patches ...@@ -53,7 +52,6 @@ Of course, patches are always welcome, but are not always applied as is. Patches
</li><li>Support hints for the optimizer (which index to use, enforce the join order). </li><li>Support hints for the optimizer (which index to use, enforce the join order).
</li><li>Change LOB mechanism (less files, keep index of lob files, point to files and row, delete unused files earlier, maybe bundle files into a tar file) </li><li>Change LOB mechanism (less files, keep index of lob files, point to files and row, delete unused files earlier, maybe bundle files into a tar file)
</li><li>Clustering: recovery needs to becomes fully automatic. Global write lock feature. </li><li>Clustering: recovery needs to becomes fully automatic. Global write lock feature.
</li><li>Option for Java functions: [DETERMINISTIC] FOR ...
</li><li>Support mixed clustering mode (one embedded, the other server mode) </li><li>Support mixed clustering mode (one embedded, the other server mode)
</li><li>Sequence: add features [NO] MINVALUE, MAXVALUE, CYCLE </li><li>Sequence: add features [NO] MINVALUE, MAXVALUE, CYCLE
</li><li>Deferred integrity checking (DEFERRABLE INITIALLY DEFERRED) </li><li>Deferred integrity checking (DEFERRABLE INITIALLY DEFERRED)
...@@ -62,13 +60,11 @@ Of course, patches are always welcome, but are not always applied as is. Patches ...@@ -62,13 +60,11 @@ Of course, patches are always welcome, but are not always applied as is. Patches
</li><li>Migrate database tool (also from other database engines) </li><li>Migrate database tool (also from other database engines)
</li><li>Optimization: automatic index creation suggestion using the trace file? </li><li>Optimization: automatic index creation suggestion using the trace file?
</li><li>Compression performance: don't allocate buffers, compress / expand in to out buffer </li><li>Compression performance: don't allocate buffers, compress / expand in to out buffer
</li><li>Rebuild index functionality (other than delete the index file) </li><li>Rebuild index functionality to shrink index size and improve performance
</li><li>Don't use deleteOnExit (bug 4513817: File.deleteOnExit consumes memory) </li><li>Don't use deleteOnExit (bug 4513817: File.deleteOnExit consumes memory)
</li><li>Console: add accesskey to most important commands (A, AREA, BUTTON, INPUT, LABEL, LEGEND, TEXTAREA) </li><li>Console: add accesskey to most important commands (A, AREA, BUTTON, INPUT, LABEL, LEGEND, TEXTAREA)
</li><li>Feature: a setting to delete the the log or not (for backup)
</li><li>Test with Sun ASPE1_4; JEE Sun AS PE1.4
</li><li>Support nested outer joins (see todo.txt). </li><li>Support nested outer joins (see todo.txt).
</li><li>Don't write stack traces for common exceptions like duplicate key to the log by default </li><li>Don't write stack traces for common exceptions like duplicate key to the log by default (exclude list)
</li><li>Test performance again with SQL Server, Oracle, DB2 </li><li>Test performance again with SQL Server, Oracle, DB2
</li><li>Test with dbmonster (http://dbmonster.kernelpanic.pl/) </li><li>Test with dbmonster (http://dbmonster.kernelpanic.pl/)
</li><li>Test with dbcopy (http://dbcopyplugin.sourceforge.net) </li><li>Test with dbcopy (http://dbcopyplugin.sourceforge.net)
...@@ -89,7 +85,8 @@ Of course, patches are always welcome, but are not always applied as is. Patches ...@@ -89,7 +85,8 @@ Of course, patches are always welcome, but are not always applied as is. Patches
</li><li>Count index range query (count(*) where id between 10 and 20) </li><li>Count index range query (count(*) where id between 10 and 20)
</li><li>Eclipse plugin </li><li>Eclipse plugin
</li><li>Asynchronous queries to support publish/subscribe: SELECT ... FOR READ WAIT [maxMillisToWait] </li><li>Asynchronous queries to support publish/subscribe: SELECT ... FOR READ WAIT [maxMillisToWait]
</li><li>Improved fulltext search (reader / tokenizer / filter). </li><li>Fulltext search Lucene: analyzer configuration.
</li><li>Fulltext search (native): reader / tokenizer / filter.
</li><li>Linked schema using CSV files: one schema for a directory of files; support indexes for CSV files </li><li>Linked schema using CSV files: one schema for a directory of files; support indexes for CSV files
</li><li>iReport to support H2 </li><li>iReport to support H2
</li><li>Implement missing JDBC API (CallableStatement,...) </li><li>Implement missing JDBC API (CallableStatement,...)
...@@ -103,7 +100,6 @@ Of course, patches are always welcome, but are not always applied as is. Patches ...@@ -103,7 +100,6 @@ Of course, patches are always welcome, but are not always applied as is. Patches
</li><li>Document, implement tool for long running transactions using user-defined compensation statements </li><li>Document, implement tool for long running transactions using user-defined compensation statements
</li><li>Support SET TABLE DUAL READONLY </li><li>Support SET TABLE DUAL READONLY
</li><li>GCJ: what is the state now? </li><li>GCJ: what is the state now?
</li><li>Reduce disk space usage
</li><li>Events for: Database Startup, Connections, Login attempts, Disconnections, Prepare (after parsing), Web Server (see http://docs.openlinksw.com/virtuoso/fn_dbev_startup.html) </li><li>Events for: Database Startup, Connections, Login attempts, Disconnections, Prepare (after parsing), Web Server (see http://docs.openlinksw.com/virtuoso/fn_dbev_startup.html)
</li><li>Optimization: Log compression </li><li>Optimization: Log compression
</li><li>Support standard INFORMATION_SCHEMA tables, as defined in http://www.contrib.andrew.cmu.edu/~shadow/sql/sql1992.txt; specially KEY_COLUMN_USAGE (http://dev.mysql.com/doc/refman/5.0/en/information-schema.html, http://www.xcdsql.org/Misc/INFORMATION_SCHEMA%20With%20Rolenames.gif) </li><li>Support standard INFORMATION_SCHEMA tables, as defined in http://www.contrib.andrew.cmu.edu/~shadow/sql/sql1992.txt; specially KEY_COLUMN_USAGE (http://dev.mysql.com/doc/refman/5.0/en/information-schema.html, http://www.xcdsql.org/Misc/INFORMATION_SCHEMA%20With%20Rolenames.gif)
...@@ -122,21 +118,16 @@ Of course, patches are always welcome, but are not always applied as is. Patches ...@@ -122,21 +118,16 @@ Of course, patches are always welcome, but are not always applied as is. Patches
</li><li>SQL Server 2005, Oracle: Support COUNT(*) OVER(). See http://www.orafusion.com/art_anlytc.htm </li><li>SQL Server 2005, Oracle: Support COUNT(*) OVER(). See http://www.orafusion.com/art_anlytc.htm
</li><li>RANK() and DENSE_RANK(), Partition using OVER() </li><li>RANK() and DENSE_RANK(), Partition using OVER()
</li><li>SQL 2003 (http://www.wiscorp.com/sql_2003_standard.zip) </li><li>SQL 2003 (http://www.wiscorp.com/sql_2003_standard.zip)
</li><li>http://www.jpackage.org
</li><li>Version column (number/sequence and timestamp based) </li><li>Version column (number/sequence and timestamp based)
</li><li>Optimize getGeneratedKey: send last identity after each execute (server). </li><li>Optimize getGeneratedKey: send last identity after each execute (server).
</li><li>Date: default date is '1970-01-01' (is it 1900-01-01 in the standard / other databases?)
</li><li>Test and document UPDATE TEST SET (ID, NAME) = (SELECT ID*10, NAME || '!' FROM TEST T WHERE T.ID=TEST.ID); </li><li>Test and document UPDATE TEST SET (ID, NAME) = (SELECT ID*10, NAME || '!' FROM TEST T WHERE T.ID=TEST.ID);
</li><li>Max memory rows / max undo log size: use block count / row size not row count </li><li>Max memory rows / max undo log size: use block count / row size not row count
</li><li>Support 123L syntax as in Java; example: SELECT (2000000000*2) </li><li>Support 123L syntax as in Java; example: SELECT (2000000000*2)
</li><li>Implement point-in-time recovery </li><li>Implement point-in-time recovery
</li><li>Include the version name in the jar file name
</li><li>LIKE: improved version for larger texts (currently using naive search) </li><li>LIKE: improved version for larger texts (currently using naive search)
</li><li>The Script tool should work with other databases as well
</li><li>Automatically convert to the next 'higher' data type whenever there is an overflow. </li><li>Automatically convert to the next 'higher' data type whenever there is an overflow.
</li><li>Throw an exception when the application calls getInt on a Long (optional) </li><li>Throw an exception when the application calls getInt on a Long (optional)
</li><li>Default date format for input and output (local date constants) </li><li>Default date format for input and output (local date constants)
</li><li>ValueInt.convertToString and so on (remove Value.convertTo)
</li><li>Support custom Collators </li><li>Support custom Collators
</li><li>Document ROWNUM usage for reports: SELECT ROWNUM, * FROM (subquery) </li><li>Document ROWNUM usage for reports: SELECT ROWNUM, * FROM (subquery)
</li><li>Clustering: Reads should be randomly distributed or to a designated database on RAM </li><li>Clustering: Reads should be randomly distributed or to a designated database on RAM
...@@ -374,6 +365,7 @@ Of course, patches are always welcome, but are not always applied as is. Patches ...@@ -374,6 +365,7 @@ Of course, patches are always welcome, but are not always applied as is. Patches
</li><li>Option to copy the old version of each changed page once after a checkpoint. </li><li>Option to copy the old version of each changed page once after a checkpoint.
</li><li>H2 Console: support single file upload and directory download (optional). </li><li>H2 Console: support single file upload and directory download (optional).
</li><li>Document FTL_SEARCH, FTL_SEARCH_DATA. </li><li>Document FTL_SEARCH, FTL_SEARCH_DATA.
</li><li>Sequences: CURRVAL should be session specific. Compatibility with PostgreSQL.
</li><li>Support DatabaseMetaData.insertsAreDetected: updatable result sets should detect inserts. </li><li>Support DatabaseMetaData.insertsAreDetected: updatable result sets should detect inserts.
</li><li>Auto-server: add option to define the IP address range or list. </li><li>Auto-server: add option to define the IP address range or list.
</li><li>Open a read-only database but don't share it with other connections. jdbc:h2:~/test;PRIVATE=TRUE </li><li>Open a read-only database but don't share it with other connections. jdbc:h2:~/test;PRIVATE=TRUE
...@@ -411,8 +403,12 @@ Of course, patches are always welcome, but are not always applied as is. Patches ...@@ -411,8 +403,12 @@ Of course, patches are always welcome, but are not always applied as is. Patches
</li><li>Natural join: somehow support this: select a.x, b.x, x from dual a natural join dual b </li><li>Natural join: somehow support this: select a.x, b.x, x from dual a natural join dual b
</li><li>MySQL compatibility: for auto_increment columns, convert 0 to next value (as when inserting NULL). </li><li>MySQL compatibility: for auto_increment columns, convert 0 to next value (as when inserting NULL).
</li><li>Functions: support hashcode(value) </li><li>Functions: support hashcode(value)
</li><li>Sequences: CURRVAL should be session specific. Compatibility with PostgreSQL.
</li><li>Serialized file lock: support long running queries. </li><li>Serialized file lock: support long running queries.
</li><li>Network: use 127.0.0.1 if other addresses don't work.
</li><li>Select for update in mvcc mode: only lock the selected records.
</li><li>Support reading JCR data: one table per node type; query table; cache option
</li><li>OSGi: create a sample application, test, document.
</li><li>help.csv: use complete examples for functions; run as test case.
</li></ul> </li></ul>
<h2>Not Planned</h2> <h2>Not Planned</h2>
......
h2/src/main/org/h2/engine/Database.java
浏览文件 @ 76ef88ee
...@@ -524,8 +524,7 @@ public class Database implements DataHandler { ...@@ -524,8 +524,7 @@ public class Database implements DataHandler {
// wait until pending changes are written // wait until pending changes are written
isReconnectNeeded(); isReconnectNeeded();
if (SysProperties.PAGE_STORE) { if (SysProperties.PAGE_STORE) {
PageStore store = getPageStore(); getPageStore();
store.recover();
} }
if (FileUtils.exists(dataFileName)) { if (FileUtils.exists(dataFileName)) {
lobFilesInDirectories &= !ValueLob.existsLobFile(getDatabasePath()); lobFilesInDirectories &= !ValueLob.existsLobFile(getDatabasePath());
......
h2/src/main/org/h2/index/PageScanIndex.java
浏览文件 @ 76ef88ee
...@@ -51,9 +51,10 @@ public class PageScanIndex extends BaseIndex implements RowIndex { ...@@ -51,9 +51,10 @@ public class PageScanIndex extends BaseIndex implements RowIndex {
if (headPos == Index.EMPTY_HEAD) { if (headPos == Index.EMPTY_HEAD) {
// new table // new table
headPos = store.allocatePage(); headPos = store.allocatePage();
store.addMeta(this, id);
PageDataLeaf root = new PageDataLeaf(this, headPos, Page.ROOT, store.createDataPage()); PageDataLeaf root = new PageDataLeaf(this, headPos, Page.ROOT, store.createDataPage());
store.updateRecord(root, true, root.data); store.updateRecord(root, true, root.data);
int test;
// } else if (store.isNew()) { // } else if (store.isNew()) {
// // the system table for a new database // // the system table for a new database
// PageDataLeaf root = new PageDataLeaf(this, headPos, // PageDataLeaf root = new PageDataLeaf(this, headPos,
......
h2/src/main/org/h2/store/PageStore.java
浏览文件 @ 76ef88ee
...@@ -13,6 +13,7 @@ import java.util.HashMap; ...@@ -13,6 +13,7 @@ import java.util.HashMap;
import org.h2.constant.ErrorCode; import org.h2.constant.ErrorCode;
import org.h2.engine.Database; import org.h2.engine.Database;
import org.h2.engine.Session; import org.h2.engine.Session;
import org.h2.index.Cursor;
import org.h2.index.IndexType; import org.h2.index.IndexType;
import org.h2.index.PageScanIndex; import org.h2.index.PageScanIndex;
import org.h2.log.SessionState; import org.h2.log.SessionState;
...@@ -33,6 +34,7 @@ import org.h2.util.FileUtils; ...@@ -33,6 +34,7 @@ import org.h2.util.FileUtils;
import org.h2.util.ObjectArray; import org.h2.util.ObjectArray;
import org.h2.util.ObjectUtils; import org.h2.util.ObjectUtils;
import org.h2.value.Value; import org.h2.value.Value;
import org.h2.value.ValueInt;
/** /**
* This class represents a file that is organized as a number of pages. The * This class represents a file that is organized as a number of pages. The
...@@ -136,11 +138,6 @@ public class PageStore implements CacheWriter { ...@@ -136,11 +138,6 @@ public class PageStore implements CacheWriter {
*/ */
private PageLog[] logs = new PageLog[LOG_COUNT]; private PageLog[] logs = new PageLog[LOG_COUNT];
/**
* True if this is a new file.
*/
private boolean isNew;
private TableData pageTable; private TableData pageTable;
private PageScanIndex pageIndex; private PageScanIndex pageIndex;
...@@ -198,13 +195,18 @@ trace.setLevel(TraceSystem.DEBUG); ...@@ -198,13 +195,18 @@ trace.setLevel(TraceSystem.DEBUG);
public void open() throws SQLException { public void open() throws SQLException {
try { try {
if (FileUtils.exists(fileName)) { if (FileUtils.exists(fileName)) {
// existing
file = database.openFile(fileName, accessMode, true); file = database.openFile(fileName, accessMode, true);
readHeader(); readHeader();
fileLength = file.length(); fileLength = file.length();
pageCount = (int) (fileLength / pageSize); pageCount = (int) (fileLength / pageSize);
initLogs(); initLogs();
recover(true);
openPageIndex();
recover(false);
checkpoint();
} else { } else {
isNew = true; // new
setPageSize(PAGE_SIZE_DEFAULT); setPageSize(PAGE_SIZE_DEFAULT);
file = database.openFile(fileName, accessMode, false); file = database.openFile(fileName, accessMode, false);
systemRootPageId = 1; systemRootPageId = 1;
...@@ -215,11 +217,9 @@ trace.setLevel(TraceSystem.DEBUG); ...@@ -215,11 +217,9 @@ trace.setLevel(TraceSystem.DEBUG);
for (int i = 0; i < LOG_COUNT; i++) { for (int i = 0; i < LOG_COUNT; i++) {
logRootPageIds[i] = 3 + i; logRootPageIds[i] = 3 + i;
} }
int todoShouldBeOneMoreStartWith0;
writeHeader(); writeHeader();
initLogs(); initLogs();
openPageIndex(); openPageIndex();
getLog().openForWriting(0); getLog().openForWriting(0);
switchLogIfPossible(); switchLogIfPossible();
getLog().flush(); getLog().flush();
...@@ -231,18 +231,6 @@ trace.setLevel(TraceSystem.DEBUG); ...@@ -231,18 +231,6 @@ trace.setLevel(TraceSystem.DEBUG);
} }
} }
private void openPageIndex() throws SQLException {
ObjectArray cols = new ObjectArray();
cols.add(new Column("HEAD", Value.INT));
cols.add(new Column("TABLE", Value.INT));
cols.add(new Column("COLUMNS", Value.STRING));
int headPos = getSystemRootPageId();
pageTable = database.getMainSchema().createTable(
"PAGE_INDEX", 0, cols, true, false, headPos);
pageIndex = (PageScanIndex) pageTable.getScanIndex(
database.getSystemSession());
}
private void initLogs() { private void initLogs() {
for (int i = 0; i < LOG_COUNT; i++) { for (int i = 0; i < LOG_COUNT; i++) {
logs[i] = new PageLog(this, logRootPageIds[i]); logs[i] = new PageLog(this, logRootPageIds[i]);
...@@ -625,16 +613,6 @@ trace.setLevel(TraceSystem.DEBUG); ...@@ -625,16 +613,6 @@ trace.setLevel(TraceSystem.DEBUG);
return database; return database;
} }
/**
* Run recovery.
*/
public void recover() throws SQLException {
recover(true);
openPageIndex();
recover(false);
checkpoint();
}
/** /**
* Run one recovery stage. There are two recovery stages: first (undo is * Run one recovery stage. There are two recovery stages: first (undo is
* true) only the undo steps are run (restoring the state before the last * true) only the undo steps are run (restoring the state before the last
...@@ -757,17 +735,34 @@ trace.setLevel(TraceSystem.DEBUG); ...@@ -757,17 +735,34 @@ trace.setLevel(TraceSystem.DEBUG);
return state.isCommitted(logId, pos); return state.isCommitted(logId, pos);
} }
public int getMetaTableHeadPos() { public void addMeta(PageScanIndex pageScanIndex, int id) {
int test;
// pageIndex.add(session, row)
}
public int getMetaTableHeadPos() throws SQLException {
int todo;
return 0; return 0;
} }
// public int getMetaTableHeadPos() { private void openPageIndex() throws SQLException {
// SearchRow r = pageIndex.getTemplateSimpleRow(false); ObjectArray cols = new ObjectArray();
// cols.add(new Column("HEAD", Value.INT));
// return pageIndex.find(database.getSystemSession(), first, last) cols.add(new Column("TABLE", Value.INT));
// // TODO Auto-generated method stub cols.add(new Column("COLUMNS", Value.STRING));
// return 0; int headPos = getSystemRootPageId();
// } pageTable = database.getMainSchema().createTable(
"PAGE_INDEX", 0, cols, true, false, headPos);
pageIndex = (PageScanIndex) pageTable.getScanIndex(
database.getSystemSession());
}
private void readMetaData() throws SQLException {
Cursor cursor = pageIndex.find(database.getSystemSession(), null, null);
while (cursor.next()) {
Row row = cursor.get();
int headPos = row.getValue(0).getInt();
}
}
} }
h2/src/test/org/h2/test/TestAll.java
浏览文件 @ 76ef88ee
...@@ -278,31 +278,19 @@ java org.h2.test.TestAll timer ...@@ -278,31 +278,19 @@ java org.h2.test.TestAll timer
System.setProperty("h2.maxMemoryRowsDistinct", "128"); System.setProperty("h2.maxMemoryRowsDistinct", "128");
System.setProperty("h2.check2", "true"); System.setProperty("h2.check2", "true");
// failing tests: 11 (1st round)
// System.setProperty("h2.pageStore", "true"); // System.setProperty("h2.pageStore", "true");
/* /*
mark 1.1 as stable documentation: rolling review at roadmap.html:146
documentation: rolling review; consistently use <code> or not. create a short 4 pages documentation
test performance with log=2
use 127.0.0.1 if other addresses don't work
select for update in mvcc mode: only lock the selected records?
JCR: for each node type, create a table; one 'dynamic' table with parameter;
option to cache the results
Favicon per page documentation: how can you improve performance (group of settings)
<link rel="icon" type="image/png" href="/path/image.png">
create a short 4 pages documentation test performance with log=2
postgresql generate_series? postgresql generate_series?
is in-memory scan index re-using ids?
don't store default values (store a special value) don't store default values (store a special value)
btree: maybe split at the insertion point btree: maybe split at the insertion point
split files (1 GB max size) split files (1 GB max size)
...@@ -311,20 +299,9 @@ and delay on each commit ...@@ -311,20 +299,9 @@ and delay on each commit
multithreaded kernel multithreaded kernel
remove old TODO remove old TODO
online backup may not work for very large files
(document problem with jdk 1.4; document to use jar -xf)
test web site 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
documentation: how can you improve performance (group of settings)
document url parameter open_new
osgi: create a sample application, test, document
merge join test case
auto_reconnect auto_reconnect
implemented: implemented:
- auto_server includes auto_reconnect - auto_server includes auto_reconnect
...@@ -349,7 +326,6 @@ Concurrent update in table test: another transaction has updated or ...@@ -349,7 +326,6 @@ Concurrent update in table test: another transaction has updated or
deleted the same row when exactly does it occur in other databases deleted the same row when exactly does it occur in other databases
(PostgreSQL, Oracle)? (PostgreSQL, Oracle)?
Run benchmark with the newest versions of other databases.
documentation: use 'server mode' not 'remote mode'. documentation: use 'server mode' not 'remote mode'.
CREATE FUNCTION? Function interface CREATE FUNCTION? Function interface
...@@ -365,10 +341,6 @@ Procedure ...@@ -365,10 +341,6 @@ Procedure
DeallocateProcedure DEALLOCATE [PLAN] <name> DeallocateProcedure DEALLOCATE [PLAN] <name>
ExecuteProcedure EXECUTE <name>[([p[,...])] ExecuteProcedure EXECUTE <name>[([p[,...])]
in help.csv, use complete examples for functions; add a test case
analyzer configuration option for the fulltext search
optimize where x not in (select): optimize where x not in (select):
SELECT c FROM color LEFT OUTER JOIN (SELECT c FROM TABLE(c SELECT c FROM color LEFT OUTER JOIN (SELECT c FROM TABLE(c
VARCHAR= ?)) p ON color.c = p.c WHERE p.c IS NULL; VARCHAR= ?)) p ON color.c = p.c WHERE p.c IS NULL;
......
h2/src/test/org/h2/test/bench/test.properties
浏览文件 @ 76ef88ee
db1 = H2, org.h2.Driver, jdbc:h2:data/test;LOCK_TIMEOUT=10000;LOCK_MODE=3, sa, sa db1 = H2, org.h2.Driver, jdbc:h2:data/test;LOCK_TIMEOUT=10000;LOCK_MODE=3, sa, sa
#db2 = H2 (nio), org.h2.Driver, jdbc:h2:nio:data/test;LOCK_TIMEOUT=10000;LOCK_MODE=3, sa, sa #xdb2 = H2 (nio), org.h2.Driver, jdbc:h2:nio:data/test;LOCK_TIMEOUT=10000;LOCK_MODE=3, sa, sa
#db3 = H2 (nioMapped), org.h2.Driver, jdbc:h2:nioMapped:data/test;LOCK_TIMEOUT=10000;LOCK_MODE=3, sa, sa #xdb3 = H2 (nioMapped), org.h2.Driver, jdbc:h2:nioMapped:data/test;LOCK_TIMEOUT=10000;LOCK_MODE=3, sa, sa
#db2 = H2 (MVCC), org.h2.Driver, jdbc:h2:data/test_mvcc;MVCC=TRUE, sa, sa #xdb2 = H2 (MVCC), org.h2.Driver, jdbc:h2:data/test_mvcc;MVCC=TRUE, sa, sa
#xdb2 = H2 (XTEA), org.h2.Driver, jdbc:h2:data/test_xtea;LOCK_TIMEOUT=10000;LOCK_MODE=3;CIPHER=XTEA, sa, sa 123 #xdb2 = H2 (XTEA), org.h2.Driver, jdbc:h2:data/test_xtea;LOCK_TIMEOUT=10000;LOCK_MODE=3;CIPHER=XTEA, sa, sa 123
#xdb3 = H2 (AES), org.h2.Driver, jdbc:h2:data/test_aes;LOCK_TIMEOUT=10000;LOCK_MODE=3;CIPHER=AES, sa, sa 123 #xdb3 = H2 (AES), org.h2.Driver, jdbc:h2:data/test_aes;LOCK_TIMEOUT=10000;LOCK_MODE=3;CIPHER=AES, sa, sa 123
#xdb4 = H2, org.h2.Driver, jdbc:h2:data/test;LOCK_TIMEOUT=10000;LOCK_MODE=3;write_mode_log=rws;write_delay=0, sa, sa #xdb4 = H2, org.h2.Driver, jdbc:h2:data/test;LOCK_TIMEOUT=10000;LOCK_MODE=3;write_mode_log=rws;write_delay=0, sa, sa
#xdb5 = H2_PG, org.postgresql.Driver, jdbc:postgresql://localhost:5435/h2test, sa, sa #xdb5 = H2_PG, org.postgresql.Driver, jdbc:postgresql://localhost:5435/h2test, sa, sa
db2 = HSQLDB, org.hsqldb.jdbcDriver, jdbc:hsqldb:data/test;hsqldb.default_table_type=cached;sql.enforce_size=true, sa db2 = HSQLDB, org.hsqldb.jdbcDriver, jdbc:hsqldb:data/test;hsqldb.default_table_type=cached;sql.enforce_size=true, sa
db3 = Derby, org.apache.derby.jdbc.EmbeddedDriver, jdbc:derby:data/derby;create=true, sa, sa db3 = Derby, org.apacheT.derby.jdbc.EmbeddedDriver, jdbc:derby:data/derby;create=true, sa, sa
db4 = H2, org.h2.Driver, jdbc:h2:tcp://localhost/data/testServer;LOCK_TIMEOUT=10000;LOCK_MODE=3, sa, sa db4 = H2, org.h2.Driver, jdbc:h2:tcp://localhost/data/testServer;LOCK_TIMEOUT=10000;LOCK_MODE=3, sa, sa
db5 = HSQLDB, org.hsqldb.jdbcDriver, jdbc:hsqldb:hsql://localhost/xdb, sa db5 = HSQLDB, org.hsqldb.jdbcDriver, jdbc:hsqldb:hsql://localhost/xdb, sa
......
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