an identifier value projection . concode_field_sep PlaceHolder placeHolder concode_field_sep Projection sqlGroupProjection concode_elem_sep AggregateProjection max concode_elem_sep CountProjection count concode_elem_sep Projection distinct concode_elem_sep AggregateProjection sum concode_elem_sep ProjectionList projectionList concode_elem_sep PropertyProjection groupProperty concode_elem_sep CountProjection countDistinct concode_elem_sep AggregateProjection min concode_elem_sep AggregateProjection avg concode_elem_sep PropertyProjection property concode_elem_sep Projection alias concode_elem_sep Projection sqlProjection concode_elem_sep Projection rowCount
IdentifierProjection function ( ) { return new IdentifierProjection ( ) ; }