Bug 152443 Support boolean type in data set
Support boolean type in data set. It'll cause some data transform issue with absence of boolean type.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/odaconsumer/PreparedStatement.java
throw new DataException( ResourceConstants.CANNOT_GET_METADATA_FOR_NAMED_RESULTSET, ex, 
			                         resultSetName );
		}
		catch( UnsupportedOperationException ex )
		{
			sm_logger.logp( Level.SEVERE, sm_className, methodName, 
							"Cannot get metadata for named resultset.", ex );
			
			throw new DataException( ResourceConstants.CANNOT_GET_METADATA_FOR_NAMED_RESULTSET, ex, 
			                         resultSetName );
		}
	}
	/**
	 * Executes the statement's query.
	 * @return	true if this has at least one result set; false otherwise
	 * @throws DataException	if data source error occurs.
	 */
	public boolean execute( ) throws DataException
	{
		String methodName = "execute";
		sm_logger.entering( sm_className, methodName );
		
		
		
		resetCurrentResultSets();