Bug 123036 Data in a reprot is doubly stored
We currently stored data twice. Once in the content stream, once by DtE. The instance stored by content stream should not be there.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/document/RDSave.java
DataEngineContext.SUBQUERY_INFO_STREAM ) == false )
				{
					
					OutputStream stream4 = context.getOutputStream( queryResultID,
							subQueryName,
							DataEngineContext.SUBQUERY_INFO_STREAM );
					RDSubQueryUtil.doSave( stream4, groupLevel, subQueryInfo );
					try
					{
						stream4.close( );
					}
					catch ( IOException e )
					{
						throw new DataException( ResourceConstants.RD_SAVE_ERROR,
								e,
								"Sub Query" );
					}
				}
			}
			catch ( IOException e )
			{
				throw new DataException( ResourceConstants.RD_SAVE_ERROR,
						e,
						"Result Set" );
			}
		}
	}
	
}