operations.put(op.getProcedureId(), op);
op = new PrefixLookupReverseOperation(dbs);
operations.put(op.getProcedureId(), op);
op = new RangeLookupOperation(dbs);
operations.put(op.getProcedureId(), op);
op = new RangeLookupReverseOperation(dbs);
operations.put(op.getProcedureId(), op);