Bug 146967 Total fuction with result of the aggregate on group-Level should be enhanced
Description: Now if we want to do total fuction with the Aggregate result on the group level, it cant be fulfilled. For example, we set a total.sum() aggregate on a group level first, and then we sum the result of total.sum() again. The expected result should simply equal to sum over all rows. But the actual result is not as our requirement. I attached the design file as the example. Expected result: The aggregation on the group total should be enhanced, or we cant get expected result such as the requirement that total.rank() with the average result on the group level and so on.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/i18n/ResourceConstants.java
public final static String EXPR_INVALID_COMPUTED_COLUMN= "data.engine.BadCompColExpr";
	
	public final static String WRONG_DATA_TYPE_COMPUTED_COLUMN= "data.engine.CompCol.WrongDataType";
	public final static String WRONG_DATA_TYPE_SCRIPT_RESULT= "data.engine.ScriptResult.WrongDataType";
	
	
	public final static String INVALID_EXPRESSION_IN_FILTER = "data.engine.BadFilterExpr";
	public final static String INVALID_DEFINITION_IN_FILTER = "data.engine.BadFilterDefn";
	public final static String BAD_GROUP_EXPRESSION = "data.engine.BadGroupExpr";
	
	
	public final static String CLOB_OPEN_ERROR = "data.engine.opencloberror";
	public final static String CLOB_READ_ERROR = "data.engine.readcloberror";
	public final static String BLOB_OPEN_ERROR = "data.engine.openbloberror";
	public final static String BLOB_READ_ERROR = "data.engine.readbloberror";
	
	
	public final static String DESTINDEX_OUTOF_RANGE = "data.engine.BadDestIndex";
	public final static String WRITE_TEMPFILE_ERROR = "data.engine.WriteTempError";
	public final static String READ_TEMPFILE_ERROR = "data.engine.ReadTempError";
	
	
	public final static String LOAD_FACTORY_ERROR = "load.factory.error";
	
	
	public final static String DATATYPEUTIL_ERROR = "data.engine.DataConversionError";
	public final static String INVALID_TYPE_IN_EXPR = "data.engine.BadDataTypeCondExpr";
	public final static String WRAPPED_BIRT_EXCEPTION = "data.engine.BirtException";