提交 bf8d9936 authored 作者: Thomas Mueller's avatar Thomas Mueller

Documentation.

上级 4832cdea
...@@ -503,6 +503,9 @@ rows are inserted. It is possible to emit update statements (except on ...@@ -503,6 +503,9 @@ rows are inserted. It is possible to emit update statements (except on
rollback), however in this case multi-row unique key updates may not always rollback), however in this case multi-row unique key updates may not always
work. Linked tables to the same database share one connection. work. Linked tables to the same database share one connection.
If the connection to the source database is lost, the connection is re-opened
(this is a workaround for MySQL that disconnects after 8 hours of inactivity by default).
If a query is used instead of the original table name, the table is read only. If a query is used instead of the original table name, the table is read only.
Queries must be enclosed in parenthesis: ""(SELECT * FROM ORDERS)"". Queries must be enclosed in parenthesis: ""(SELECT * FROM ORDERS)"".
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...@@ -18,7 +18,11 @@ Change Log ...@@ -18,7 +18,11 @@ Change Log
<h1>Change Log</h1> <h1>Change Log</h1>
<h2>Next Version (unreleased)</h2> <h2>Next Version (unreleased)</h2>
<ul><li>If the database contained many CLOB or BLOB values, then closing a connection was very slow. <ul><li>The H2 Console now detects unsupported command line options.
(In the future, it will be combined with the Server tool as it is a superset.)
</li><li>MySQL compatibility: SHOW COLUMN FOR schemaName.columnName.
</li><li>DatabaseMetaData.getCrossReference now also lists the name of the primary index (PK_NAME).
</li><li>If the database contained many CLOB or BLOB values, then closing a connection was very slow.
Reason: was that when closing a connection, the temporary CLOB and BLOB values for this connection Reason: was that when closing a connection, the temporary CLOB and BLOB values for this connection
were removed, but there was no index on this column. were removed, but there was no index on this column.
For existing databases with many CLOB and BLOB values, creating the index may take a few seconds. For existing databases with many CLOB and BLOB values, creating the index may take a few seconds.
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...@@ -526,6 +526,7 @@ See also <a href="build.html#providing_patches">Providing Patches</a>. ...@@ -526,6 +526,7 @@ See also <a href="build.html#providing_patches">Providing Patches</a>.
(compatibility with MySQL, PostgreSQL, HSQLDB; not Derby). (compatibility with MySQL, PostgreSQL, HSQLDB; not Derby).
</li><li>ARRAY data type: support Integer[] and so on in Java functions (currently only Object[] is supported). </li><li>ARRAY data type: support Integer[] and so on in Java functions (currently only Object[] is supported).
</li><li>MySQL compatibility: LOCK TABLES a READ, b READ - see also http://dev.mysql.com/doc/refman/5.0/en/lock-tables.html </li><li>MySQL compatibility: LOCK TABLES a READ, b READ - see also http://dev.mysql.com/doc/refman/5.0/en/lock-tables.html
</li><li>The HTML to PDF converter should use http://code.google.com/p/wkhtmltopdf/
</li></ul> </li></ul>
<h2>Not Planned</h2> <h2>Not Planned</h2>
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