PreparedStatement.setAnyNumericType() now handles positive exponents correctly (adds + so MySQL can understand it).

Batch updates now supported (thanks to some inspiration from Daniel Rall).

DatabaseMetaData.getPrimaryKeys() and getBestRowIdentifier() are now more robust in identifying primary keys (matches regardless of case or abbreviation/full spelling of Primary Key in Key_type column).

XADataSource/ConnectionPoolDataSource code (experimental)