Represents flags for RDB$STORAGE_MAP_AREAS system table.

    Bit
    Position   Description

    0          If Bit 0 is clear, the LIST storage area set is filled
               randomly.

               If Bit 0 is set, the LIST storage area set is filled
               sequentially.
    1          User named this partition.
    2          BUILD PARTITION is required.
    3          Deferred build using NOLOGGING.