This operator can be used to select one element from a window of elements.
Remark: The input must contain end time stamps, else no output will ever be produced!
#PARSER PQL #ADDQUERY window = ELEMENTWINDOW({ size = 5, advance = 5 }, person ) out = TUPLEAGGREGATE({ method = 'MAX', attribute = 'id', name = 'MAX' }, window ) out2 = TUPLEAGGREGATE({ method = 'MIN', attribute = 'id' name = 'MIN', }, window ) out3 = TUPLEAGGREGATE({ method = 'FIRST', name = 'FIRST', }, window ) out4 = TUPLEAGGREGATE({ method = 'LAST', name = 'LAST' }, window ) |