Bug 123915 Add table-fetch limitation when DataSet Editor is populating table names.
When fetch table names from database of large volume of data, there lies a possibility that the editor window will be frozen because of the population of huge number of table names. This should be enhanced. A handy solution might be limiting the number of table names being fetched each schema.
data/org.eclipse.birt.report.data.oda.jdbc.ui/src/org/eclipse/birt/report/data/oda/jdbc/ui/editors/SQLDataSetEditorPage.java
private String cachedSearchTxt = "";
	private String cachedDbType = "";
	private int cachedSchemaComboIndex = -1;
	static
	{
		try
		{
	
			ImageRegistry reg = JFaceResources.getImageRegistry( );
			reg.put( TABLE_ICON,
					ImageDescriptor.createFromFile( JdbcPlugin.class,
							"icons/table.gif" ) );
			reg.put( VIEW_ICON,
					ImageDescriptor.createFromFile( JdbcPlugin.class,
							"icons/view.gif" ) );
			reg.put( PAGE_ICON,
					ImageDescriptor.createFromFile( JdbcPlugin.class,
							"icons/create_join_wizard.gif" ) );
			reg.put( SCHEMA_ICON,
					ImageDescriptor.createFromFile( JdbcPlugin.class,
							"icons/schema.gif" ) );
			reg.put( DATABASE_ICON,
					ImageDescriptor.createFromFile( JdbcPlugin.class,
							"icons/data_source.gif" ) );
			reg.put( COLUMN_ICON,
					ImageDescriptor.createFromFile( JdbcPlugin.class,
							"icons/column.gif" ) );
		}
		catch ( Exception ex )
		{