@@ -37,7 +37,20 @@ Hypersonic SQL or HSQLDB. H2 is built from scratch.
<h3>Version 1.0 (Current)</h3>
<h3>Version 1.0 / 2007-TODO</h3><ul>
<li>Linked tables can now emit UPDATE statements if 'EMIT UPDATES' is specified in the CREATE LINKED
<li>In many situations, views did not use an index if they could have. Fixed. Also the explain plan for views works now.
</li><li>The table id (important for LOB files) is now included in INFORMATION_SCHEMA.TABLES.
</li><li>When using DISTINCT, ORDER BY a function works now as long as it is in the column list.
</li><li>Support for the data type CHAR. The difference to VARCHAR is: trailing spaces are ignored. This
data type is supported for compatibility with other databases and older applications.
</li><li>The aggregate function COUNT(...) now returns a long instead of an int.
</li><li>The 'ordering' of data types was not always correct, for example an operation involving REAL and DOUBLE produced a result of type REAL. Fixed.
</li><li>CSV tool: If the same instance was used for reading and writing, the tool wrote the column names twice. Fixed.
</li><li>Compatibility: Support for the data type notation CHARACTER VARYING
</li><li>Can now ORDER BY -1 (meaning order by first column, descending), and ORDER BY ? (parameterized column number).
</li><li>Databases with invalid linked tables (for example, because the target database is not accessible) can now be opened.
Old table links don't work however.
</li><li>There was a small memory leak in the trace module. One object per opened connection was kept in a hash map.
</li><li>Linked tables can now emit UPDATE statements if 'EMIT UPDATES' is specified in the CREATE LINKED
TABLE statement. So far, updating a row always deleted the old row and then inserted the new row.
</li><li>In the last release, the H2 Console opened two connection when logging into a database,
and only closed one connection when logging out. Fixed.
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@@ -1160,7 +1173,7 @@ Hypersonic SQL or HSQLDB. H2 is built from scratch.
<li>Improve test code coverage
</li><li>More fuzz tests
</li><li>Test very large databases and LOBs (up to 256 GB)
</li><li>Test Multi-Threaded in-memory db access
</li><li>Test multi-threaded in-memory db access
</li></ul>
<h3>In Version 1.1</h3>
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@@ -1199,10 +1212,10 @@ Hypersonic SQL or HSQLDB. H2 is built from scratch.
</li><li>SET variable { TO | = } { value | 'value' | DEFAULT }
</li><li>Running totals: select @running:=if(@previous=t.ID,@running,0)+t.NUM as TOTAL, @previous:=t.ID
</li><li>Support SET REFERENTIAL_INTEGRITY {TRUE|FALSE}
</li><li>Support CHAR data type (internally use VARCHAR, but report CHAR for JPox)
</li><li>Better support large transactions, large updates / deletes: use less memory
</li><li>Better support large transactions, large updates / deletes: allow tables without primary key
</li><li>Support Oracle RPAD and LPAD(string, n[, pad]) (truncate the end if longer)
</li><li>Allow editing NULL values in the Console
</li></ul>
<h3>Priority 2</h3>
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@@ -1265,7 +1278,6 @@ Hypersonic SQL or HSQLDB. H2 is built from scratch.
</li><li>Reduce disk space usage (Derby uses less disk space?)
</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>Allow editing NULL values in the Console
</li><li>Compatibility: in MySQL, HSQLDB, /0.0 is NULL; in PostgreSQL, Derby: Division by zero
</li><li>Functional tables should accept parameters from other tables (see FunctionMultiReturn)
SELECT * FROM TEST T, P2C(T.A, T.R)
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@@ -1447,6 +1459,13 @@ Hypersonic SQL or HSQLDB. H2 is built from scratch.
