| 摘要 |
An object logic node which is achieved with a distributed data management device is provided with a storage unit which stores object node identifiers which are each uniquely assigned to a plurality of logic nodes; a storage unit which stores at least one among a plurality of partial data units; a link table which stores link information for between object logic nodes and link destination logic nodes; a storage unit which stores value range boundary values for each attribute corresponding to the partial data units; and a storage unit which stores tree structure data units, which are tree structure data units for each attribute which are for identifying logic nodes which store partial data units corresponding to access requests, and which are configured from a plurality of tree nodes that each indicate a value range. The tree structure data units have a root tree node, which includes at least one entry formed from: a pointer which points to child tree nodes which have been assigned to link destination logic nodes, and a value indicating a value range for selecting the pointer. |
