Bug 151535 Parameters are invisable in Joint Dataset
Trying to use "Joint Dataset" combined with parameters within underlaying Data-Sets (neccessary to achive a filtering where clause for a DateTime Field) Parameter editing ( e.g. in Chart designer) do not show the entire parameter. As specified it should show and let to edit a combination of both underlaying datasets' parameters.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/PreparedJointDataSourceQuery.java
{
				index[i - 1] = i
						- ( left.getColumnCount( ) - leftTempColumnSize );
				columnSource[i - 1] = JointResultMetadata.COLUMN_TYPE_RIGHT;
				projectedColumns.add( new ResultFieldMetadata( i,
						rightPrefix
								+ right.getColumnName( i
										- ( left.getColumnCount( ) - leftTempColumnSize ) ),
						rightPrefix
								+ right.getColumnName( i
										- ( left.getColumnCount( ) - leftTempColumnSize ) ),
						getTypeClass( right.getColumnType( i
								- ( left.getColumnCount( ) - leftTempColumnSize ) ) ),
						right.getColumnNativeTypeName( i
								- ( left.getColumnCount( ) - leftTempColumnSize ) ),
						false ) );
			}
			if ( dataSet.getComputedColumns( ) != null )
			{
				for ( int i = 0; i < dataSet.getComputedColumns( ).size( ); i++ )
				{
					IComputedColumn cc = (IComputedColumn) dataSet.getComputedColumns( )
							.get( i );
					index[i
							+ ( left.getColumnCount( ) - leftTempColumnSize )
							+ ( right.getColumnCount( ) - rightTempColumnSize )] = -1;
					columnSource[i
							+ ( left.getColumnCount( ) - leftTempColumnSize )
							+ ( right.getColumnCount( ) - rightTempColumnSize )] = JointResultMetadata.COLUMN_TYPE_COMPUTED;
					projectedColumns.add( new ResultFieldMetadata( i,