.Q.D

In segmented DBs, contains a list of the partitions – conformant to .Q.P – that are present in each segment.

.Q.P!.Q.D can be used to create a dictionary of partition-to-segment information.

q).Q.P
`:../segments/1`:../segments/2`:../segments/3`:../segments/4
q).Q.D
2010.05.26 2010.05.31
,2010.05.27
2010.05.28 2010.05.30
2010.05.29 2010.05.30
q).Q.P!.Q.D
:../segments/1| 2010.05.26 2010.05.31
:../segments/2| ,2010.05.27
:../segments/3| 2010.05.28 2010.05.30
:../segments/4| 2010.05.29 2010.05.30