Exemplo n.º 1
0
func (db *DB) SsPut(key, member []byte, score uint64) *skv.Reply {

	batch := new(leveldb.Batch)

	//
	if prev := db.SsGet(key, member); prev.Status == skv.ReplyOK && prev.Uint64() != score {

		batch.Delete(skv.SortSetsNsScoreKey(key, member, prev.Uint64()))

	} else if prev.Status == skv.ReplyNotFound {
		db.RawIncrby(skv.SortSetsNsLengthKey(key), 1)
	}

	//
	batch.Put(skv.SortSetsNsScoreKey(key, member, score), []byte{})

	//
	batch.Put(skv.SortSetsNsEntryKey(key, member), []byte(strconv.FormatUint(score, 10)))

	rpl := skv.NewReply("")

	if err := db.ldb.Write(batch, nil); err != nil {
		rpl.Status = err.Error()
	}

	return rpl
}
Exemplo n.º 2
0
func (db *DB) RawPut(key, value []byte, ttl int64) *skv.Reply {

	rpl := skv.NewReply("")

	if len(key) < 2 {
		rpl.Status = skv.ReplyBadArgument
		return rpl
	}

	if ttl > 0 {

		if ttl < 1000 {
			return rpl
		}

		switch key[0] {
		case skv.NsKvEntry:
			if ok := db._raw_ssttlat_put(key[0], key[1:], dbutil.MetaTimeNowAddMS(ttl)); !ok {
				rpl.Status = skv.ReplyBadArgument
				return rpl
			}
		default:
			rpl.Status = skv.ReplyBadArgument
			return rpl
		}
	}

	if err := db.ldb.Put(key, value, nil); err != nil {
		rpl.Status = err.Error()
	}

	return rpl
}
Exemplo n.º 3
0
func (db *DB) _raw_put_json(key []byte, value interface{}, ttl int64) *skv.Reply {

	bvalue, err := dbutil.JsonEncode(value)
	if err != nil {
		return skv.NewReply(err.Error())
	}

	return db.RawPut(key, bvalue, ttl)
}
Exemplo n.º 4
0
func (db *DB) HashDel(key, field []byte) *skv.Reply {

	bkey := skv.HashNsEntryKey(key, field)

	if rs := db.RawGet(bkey); rs.Status == skv.ReplyOK {
		db.RawIncrby(skv.HashNsLengthKey(key), -1)
		return db.RawDel(bkey)
	}

	return skv.NewReply("")
}
Exemplo n.º 5
0
func (db *DB) ObjectDocDel(fold, key string) *skv.Reply {

	var (
		rpl     = skv.NewReply("")
		opath   = skv.NewObjectPathKey(fold, key)
		bkey    = opath.EntryIndex()
		prevobj *skv.Object
		previdx = map[uint8]skv.ObjectDocSchemaIndexEntryBytes{}
	)

	if rs := db.RawGet(bkey); rs.Status == skv.ReplyNotFound {

		return rpl

	} else if rs.Status != skv.ReplyOK {

		return rs

	} else {

		prevobj = rs.Object()

		var prev map[string]interface{}

		if err := prevobj.Data.JsonDecode(&prev); err == nil {
			previdx = skv.ObjectDocIndexDataExport(_obj_doc_indexes, opath.Fold, prev)
		}
	}

	batch := new(leveldb.Batch)

	for piKey, piEntry := range previdx {
		batch.Delete(append(append(skv.ObjectDocIndexFieldPrefix(opath.Fold, piKey), piEntry.Data...), opath.Field...))
	}

	batch.Delete(bkey)

	if err := db.ldb.Write(batch, nil); err != nil {
		rpl.Status = err.Error()
	} else {
		db._obj_meta_sync(prevobj.Meta.Type, &prevobj.Meta, opath, -1, 0, _obj_options_def)

		// if _obj_event_handler != nil {
		//     _obj_event_handler(opath, skv.ObjectEventDeleted, 0)
		// }
	}

	return rpl
}
Exemplo n.º 6
0
func (db *DB) RawDel(keys ...[]byte) *skv.Reply {

	rpl := skv.NewReply("")

	batch := new(leveldb.Batch)

	for _, key := range keys {
		batch.Delete(key)
	}

	if err := db.ldb.Write(batch, nil); err != nil {
		rpl.Status = err.Error()
	}

	return rpl
}
Exemplo n.º 7
0
func (db *DB) RawGet(key []byte) *skv.Reply {

	rpl := skv.NewReply("")

	if data, err := db.ldb.Get(key, nil); err != nil {

		if err.Error() == "leveldb: not found" {
			rpl.Status = skv.ReplyNotFound
		} else {
			rpl.Status = err.Error()
		}

	} else {
		rpl.Data = []dbtypes.Bytex{data}
	}

	return rpl
}
Exemplo n.º 8
0
func (db *DB) _raw_ssttl_get(ns byte, key []byte) *skv.Reply {

	key = skv.RawNsKeyConcat(ns, key)

	rpl, ttl := skv.NewReply(""), int64(0)

	if ttlat := dbutil.BytesToUint64(db.RawGet(skv.RawTtlEntry(key)).Bytes()); ttlat > 0 {
		ttl = (dbutil.MetaTimeParse(ttlat).UnixNano() - time.Now().UTC().UnixNano()) / 1e6
	}

	if ttl < 0 {
		ttl = 0
	}

	rpl.Data = append(rpl.Data, []byte(strconv.FormatInt(ttl, 10)))

	return rpl
}
Exemplo n.º 9
0
func (db *DB) HashScan(key, cursor, end []byte, limit uint32) *skv.Reply {

	var (
		prefix = skv.RawNsKeyEncode(skv.NsHashEntry, key)
		prelen = len(prefix)
		cstart = append(prefix, cursor...)
		cend   = append(prefix, end...)
		rpl    = skv.NewReply("")
	)

	for i := len(cend); i < 256; i++ {
		cend = append(cend, 0xff)
	}

	if limit > skv.ScanLimitMax {
		limit = skv.ScanLimitMax
	}

	iter := db.ldb.NewIterator(&util.Range{Start: cstart, Limit: append(cend)}, nil)

	for iter.Next() {

		if limit < 1 {
			break
		}

		if len(iter.Key()) < prelen {
			continue
		}

		rpl.Data = append(rpl.Data, dbutil.BytesClone(iter.Key()[prelen:]))
		rpl.Data = append(rpl.Data, dbutil.BytesClone(iter.Value()))

		limit--
	}

	iter.Release()

	if iter.Error() != nil {
		rpl.Status = iter.Error().Error()
	}

	return rpl
}
Exemplo n.º 10
0
func (db *DB) SsDel(key, member []byte) *skv.Reply {

	batch := new(leveldb.Batch)

	batch.Delete(skv.SortSetsNsEntryKey(key, member))

	if prev := db.SsGet(key, member); prev.Status == skv.ReplyOK {
		db.RawIncrby(skv.SortSetsNsLengthKey(key), -1)
		batch.Delete(skv.SortSetsNsScoreKey(key, member, prev.Uint64()))
	}

	rpl := skv.NewReply("")

	if err := db.ldb.Write(batch, nil); err != nil {
		rpl.Status = err.Error()
	}

	return rpl
}
Exemplo n.º 11
0
func (db *DB) RawIncrby(key []byte, step int64) *skv.Reply {

	if step == 0 {
		return skv.NewReply("")
	}

	_raw_incr_locker.Lock()
	defer _raw_incr_locker.Unlock()

	num := uint64(0)

	rpl := db.RawGet(key)
	if rpl.Status == skv.ReplyOK {
		num = rpl.Uint64()
	}

	if step == 0 {
		rpl.Data = append(rpl.Data, []byte(strconv.FormatUint(num, 10)))
		rpl.Status = skv.ReplyOK
		return rpl
	}

	if step < 0 {

		if uint64(-step) > num {
			num = 0
		} else {
			num = num - uint64(-step)
		}

	} else {
		num += uint64(step)
	}

	bnum := []byte(strconv.FormatUint(num, 10))
	rpl = db.RawPut(key, bnum, 0)
	if rpl.Status == skv.ReplyOK {
		rpl.Data = append(rpl.Data, bnum)
	}

	return rpl
}
Exemplo n.º 12
0
func (db *DB) RawRevScan(cursor, end []byte, limit uint32) *skv.Reply {

	rpl := skv.NewReply("")

	if len(cursor) < 1 {
		cursor = end
	}

	for i := len(cursor); i < 256; i++ {
		cursor = append(cursor, 0x00)
	}

	for i := len(end); i < 256; i++ {
		end = append(end, 0xff)
	}

	if limit > skv.ScanLimitMax {
		limit = skv.ScanLimitMax
	}

	iter := db.ldb.NewIterator(&util.Range{Start: cursor, Limit: end}, nil)

	for ok := iter.Last(); ok; ok = iter.Prev() {

		if limit < 1 {
			break
		}

		rpl.Data = append(rpl.Data, dbutil.BytesClone(iter.Key()))
		rpl.Data = append(rpl.Data, dbutil.BytesClone(iter.Value()))

		limit--
	}

	iter.Release()

	if iter.Error() != nil {
		rpl.Status = iter.Error().Error()
	}

	return rpl
}
Exemplo n.º 13
0
func (db *DB) _raw_ssttlat_range(score_start, score_end, limit uint64) *skv.Reply {

	var (
		bs_start = skv.RawTtlQueuePrefix(score_start)
		bs_end   = skv.RawTtlQueuePrefix(score_end)
		rpl      = skv.NewReply("")
	)

	for i := len(bs_end); i < 256; i++ {
		bs_end = append(bs_end, 0xff)
	}

	iter := db.ldb.NewIterator(&util.Range{Start: bs_start, Limit: bs_end}, nil)

	for iter.Next() {

		if limit < 1 {
			break
		}

		if len(iter.Key()) < 10 {
			db.RawDel(iter.Key())
			continue
		}

		ui64 := binary.BigEndian.Uint64(iter.Key()[1:9])

		rpl.Data = append(rpl.Data, dbutil.BytesClone(iter.Key()))
		rpl.Data = append(rpl.Data, []byte(strconv.FormatUint(ui64, 10)))

		limit--
	}

	iter.Release()

	if iter.Error() != nil {
		rpl.Status = iter.Error().Error()
	}

	return rpl
}
Exemplo n.º 14
0
func (db *DB) SsRange(key []byte, score_start, score_end uint64, limit uint32) *skv.Reply {

	var (
		bs_start = skv.SortSetsNsScorePrefix(key, score_start)
		bs_end   = skv.SortSetsNsScorePrefix(key, score_end)
		rpl      = skv.NewReply("")
	)

	for i := len(bs_end); i < 256; i++ {
		bs_end = append(bs_end, 0xff)
	}

	iter := db.ldb.NewIterator(&util.Range{Start: bs_start, Limit: bs_end}, nil)

	for iter.Next() {

		if limit < 1 {
			break
		}

		if len(iter.Key()) < (len(key) + 10) {
			db.RawDel(iter.Key())
			continue
		}

		ui64 := binary.BigEndian.Uint64(iter.Key()[len(key)+2 : (len(key) + 10)])

		rpl.Data = append(rpl.Data, dbutil.BytesClone(iter.Key()[(len(key)+10):]))
		rpl.Data = append(rpl.Data, dbutil.BytesClone([]byte(strconv.FormatUint(ui64, 10))))

		limit--
	}

	iter.Release()

	if iter.Error() != nil {
		rpl.Status = iter.Error().Error()
	}

	return rpl
}
Exemplo n.º 15
0
func (db *DB) ObjectDocSchemaSync(fold string, schema skv.ObjectDocSchema) *skv.Reply {

	_obj_doc_global_locker.Lock()
	defer _obj_doc_global_locker.Unlock()

	var (
		rpl  = skv.NewReply("")
		key  = skv.ObjectDocFoldKey(fold)
		prev skv.ObjectDocSchema
	)

	if len(schema.Indexes) > skv.ObjectDocSchemaMaxIndex {
		rpl.Status = skv.ReplyBadArgument
		return rpl
	}

	if rs := db.RawGet(skv.ObjectDocSchemaKey(key)); rs.Status == skv.ReplyOK {
		rs.JsonDecode(&prev)
	}

	for i, ei := range schema.Indexes {
		ei.Column = skv.ObjectDocIndexStringFilter(ei.Column)
		schema.Indexes[i] = ei
	}

	for _, pi := range prev.Indexes {

		removed, changed := true, false

		for j, ei := range schema.Indexes {

			if pi.Column == ei.Column {

				removed = false

				if pi.Type != ei.Type ||
					pi.Length != ei.Length ||
					pi.Unique != ei.Unique ||
					pi.AutoIncr != ei.AutoIncr {

					changed = true
				}

				ei.Seq = pi.Seq

				schema.Indexes[j] = ei

				break
			}
		}

		if removed || changed {

			objIdxKeyPrefix, limit := skv.ObjectDocIndexFieldPrefix(key, pi.Seq), 1000

			// fmt.Println("WARN CLEAN prev INDEXES", pi.Column)
			for {

				rs := db.RawScan(objIdxKeyPrefix, objIdxKeyPrefix, uint32(limit)).Hash()

				if len(rs) > 0 {
					batch := new(leveldb.Batch)

					for _, entry := range rs {
						batch.Delete(entry.Key)
					}

					db.ldb.Write(batch, nil)
				}

				if len(rs) < limit {
					break
				}
			}
		}
	}

	for i, ei := range schema.Indexes {

		reidx := true

		for _, pi := range prev.Indexes {

			if pi.Column == ei.Column {

				ei.Seq = pi.Seq

				schema.Indexes[i] = ei

				if pi.Type == ei.Type &&
					pi.Length == ei.Length &&
					pi.Unique == ei.Unique &&
					pi.AutoIncr == ei.AutoIncr &&
					pi.Seq > 0 {

					reidx = false
				}

				break
			}
		}

		//
		for _, ci := range schema.Indexes {

			if ei.Seq == ci.Seq && ei.Column != ci.Column {
				ei.Seq = 0
				schema.Indexes[i] = ei
				break
			}
		}

		if ei.Seq == 0 {

			reidx = true

			for j := uint8(1); j <= 255; j++ {

				dup := false

				for _, ci := range schema.Indexes {

					if j == ci.Seq && ei.Column != ci.Column {
						dup = true
						break
					}
				}

				if !dup {
					ei.Seq = j
					schema.Indexes[i] = ei
					break
				}
			}
		}

		if reidx && ei.Seq > 0 {

			// fmt.Println("WARN NEW INDEXES", ei.Column, ei.Seq)

			offset, limit := "", 1000

			for {

				rs := db.ObjectScan(fold, offset, "", uint32(limit)).ObjectList()

				batch := new(leveldb.Batch)

				for _, entry := range rs {

					var obj map[string]interface{}
					if err := entry.Data.JsonDecode(&obj); err == nil {

						for mk, mv := range obj {

							mk = skv.ObjectDocIndexStringFilter(mk)

							if mk != ei.Column {
								continue
							}

							if bs, ok := skv.ObjectDocIndexValue(&ei, reflect.ValueOf(mv)); ok {
								batch.Put(dbutil.BytesConcat(skv.ObjectDocIndexFieldPrefix(key, ei.Seq), bs, entry.Key), []byte{})
							}

							break
						}

						offset = dbutil.BytesToHexString(entry.Key)
					}
				}

				db.ldb.Write(batch, nil)

				if len(rs) < limit {
					break
				}
			}
		}
	}

	skey := string(key)

	rpl = db._raw_put_json(skv.ObjectDocSchemaKey(key), schema, 0)
	if rpl.Status == skv.ReplyOK {
		_obj_doc_indexes[skey] = schema
	}

	return rpl
}
Exemplo n.º 16
0
func (db *DB) ObjectDocPut(fold, key string, obj interface{}, opts *skv.ObjectWriteOptions) *skv.Reply {

	_obj_doc_global_locker.Lock()
	_obj_doc_global_locker.Unlock()

	var (
		opath = skv.NewObjectPathKey(fold, key)
		rpl   = skv.NewReply("")
	)

	if len(opath.Fold) > skv.ObjectDocKeyLenMax ||
		len(opath.Field) > skv.ObjectDocPriLenMax ||
		obj == nil {
		rpl.Status = skv.ReplyBadArgument
		return rpl
	}

	var (
		bkey    = opath.EntryIndex()
		objt    = reflect.TypeOf(obj)
		objv    = reflect.ValueOf(obj)
		prev    = map[string]interface{}{}
		previdx = map[uint8]skv.ObjectDocSchemaIndexEntryBytes{}
		set     = map[string]interface{}{}
	)

	if opts == nil {
		opts = _obj_options_def
	}

	prevobj := db.RawGet(bkey).Object()
	if prevobj.Status == skv.ReplyOK {

		if err := prevobj.Data.JsonDecode(&prev); err == nil {
			previdx = skv.ObjectDocIndexDataExport(_obj_doc_indexes, opath.Fold, prev)
		}
	}

	if objt.Kind() == reflect.Struct {

		for i := 0; i < objt.NumField(); i++ {
			set[skv.ObjectDocIndexStringFilter(objt.Field(i).Name)] = objv.Field(i).Interface()
		}

	} else if objt.Kind() == reflect.Map {

		mks := objv.MapKeys()

		for _, mkv := range mks {

			if mkv.Kind() == reflect.String {
				set[skv.ObjectDocIndexStringFilter(mkv.String())] = objv.MapIndex(mkv).Interface()
			}
		}

	} else {

		rpl.Status = skv.ReplyBadArgument
		return rpl
	}

	setidx, idxnew, idxdup := skv.ObjectDocIndexDataExport(_obj_doc_indexes, opath.Fold, set), [][]byte{}, [][]byte{}

	// fmt.Println("\tsetidx", setidx)
	// fmt.Println("\tprevidx", previdx)

	for siKey, siEntry := range setidx {

		var incr_set, incr_prev uint64

		if siEntry.AutoIncr {
			incr_set = dbutil.BytesToUint64(siEntry.Data)
		}

		//
		if piEntry, ok := previdx[siKey]; ok {

			if siEntry.AutoIncr && incr_set == 0 {

				if incr_prev = dbutil.BytesToUint64(piEntry.Data); incr_prev > 0 {

					siEntry.Data, incr_set = piEntry.Data, incr_prev

					set[siEntry.FieldName] = incr_set

					continue
				}

			} else if bytes.Compare(piEntry.Data, siEntry.Data) == 0 {
				continue
			}

			idxdup = append(idxdup, append(append(skv.ObjectDocIndexFieldPrefix(opath.Fold, siKey), piEntry.Data...), opath.Field...))
		}

		//
		if siEntry.AutoIncr {

			if incr_set == 0 {

				incr_set = db.RawIncrby(skv.ObjectDocIndexIncrKey(opath.Fold, siEntry.Seq), 1).Uint64()

				ibs := make([]byte, 8)
				binary.BigEndian.PutUint64(ibs, incr_set)

				siEntry.Data = ibs[(8 - len(siEntry.Data)):]

				set[siEntry.FieldName] = incr_set

			} else if incr_set > 0 && incr_set > incr_prev {

				if db.RawGet(skv.ObjectDocIndexIncrKey(opath.Fold, siEntry.Seq)).Uint64() < incr_set {
					db.RawPut(skv.ObjectDocIndexIncrKey(opath.Fold, siEntry.Seq), []byte(strconv.FormatUint(incr_set, 10)), 0)
				}
			}
		}

		if siEntry.Unique || siEntry.AutoIncr {

			objIdxKeyPrefix := append(skv.ObjectDocIndexFieldPrefix(opath.Fold, siKey), siEntry.Data...)

			if rs := db.RawScan(objIdxKeyPrefix, []byte{}, 1).Hash(); len(rs) > 0 {
				rpl.Status = skv.ReplyBadArgument
				return rpl
			}
		}

		idxnew = append(idxnew, append(append(skv.ObjectDocIndexFieldPrefix(opath.Fold, siKey), siEntry.Data...), opath.Field...))
	}

	//

	//
	batch := new(leveldb.Batch)

	for _, idxkey := range idxdup {
		batch.Delete(idxkey)
	}

	for _, idxkey := range idxnew {
		batch.Put(idxkey, []byte{})
	}

	bvalue, _ := dbutil.JsonEncode(set)
	sum := crc32.ChecksumIEEE(bvalue)

	if prevobj.Meta.Sum == sum {
		return skv.NewReply(skv.ReplyOK)
	}

	db._obj_meta_sync(skv.ObjectTypeDocument, &prevobj.Meta, opath, int64(len(bvalue)), sum, _obj_options_def)

	batch.Put(bkey, append(prevobj.Meta.Export(), bvalue...))

	if err := db.ldb.Write(batch, nil); err != nil {
		rpl.Status = err.Error()
	}

	return rpl
}
Exemplo n.º 17
0
// TODO btree
//  https://github.com/petar/GoLLRB
//  https://github.com/google/btree
func (db *DB) ObjectDocQuery(fold string, qry *skv.ObjectDocQuerySet) *skv.Reply {

	var (
		rpl  = skv.NewReply(skv.ReplyBadArgument)
		key  = skv.ObjectDocFoldKey(fold)
		skey = string(key)
	)

	schema, ok := _obj_doc_indexes[skey]
	if !ok {
		return rpl
	}

	idxs := map[string]skv.ObjectDocSchemaIndexEntry{}
	for _, idx := range schema.Indexes {

		if qry.SortField == idx.Column && idx.Type != skv.ObjectDocSchemaIndexTypeUint {
			return rpl
		}

		idxs[idx.Column] = idx
	}

	for _, filter := range qry.Filters {
		if _, ok := idxs[filter.Field]; !ok {
			return rpl
		}
	}

	sls := [][]byte{}

	if idx, ok := idxs[qry.SortField]; ok {

		start, end := skv.ObjectDocIndexFieldPrefix(key, idx.Seq), skv.ObjectDocIndexFieldPrefix(key, idx.Seq)

		rs := []skv.ReplyEntry{}

		for {

			if qry.SortMode == skv.ObjectDocQuerySortAttrDesc {
				rs = db.RawRevScan(start, end, skv.ObjectDocScanMax).Hash()
			} else {
				rs = db.RawScan(start, end, skv.ObjectDocScanMax).Hash()
			}

			for _, v := range rs {

				if _, bkey, ok := skv.ObjectDocIndexRawKeyExport(v.Key, idx.Length); ok {
					sls = append(sls, dbutil.BytesClone(bkey))
				}

				if qry.SortMode == skv.ObjectDocQuerySortAttrDesc {
					end = skv.ObjectDocBytesDecr(v.Key)
				} else {
					start = skv.ObjectDocBytesIncr(v.Key)
				}
			}

			if uint32(len(rs)) < skv.ObjectDocScanMax {
				break
			}
		}
	}

	sls_ok := false
	if len(sls) > 0 {
		sls_ok = true
	}

	for _, filter := range qry.Filters {

		idx, ok := idxs[filter.Field]
		if !ok {
			continue
		}

		if idx.Type != skv.ObjectDocSchemaIndexTypeUint {
			continue
		}

		vstart, vend, values := []byte{}, []byte{}, [][]byte{}

		for _, v := range filter.Values {

			vb := dbutil.SintToBytes(v, idx.Length)

			dup := false
			for _, pvb := range values {

				if bytes.Compare(pvb, vb) == 0 {
					dup = true
					break
				}
			}

			if !dup {

				values = append(values, vb)

				if (filter.Type == skv.ObjectDocQueryFilterValues && !filter.Exclude) ||
					filter.Type == skv.ObjectDocQueryFilterRange {

					if len(vstart) < 1 {
						vstart = vb
					} else if bytes.Compare(vb, vstart) < 1 {
						vstart = vb
					}

					if bytes.Compare(vb, vend) > 0 {
						vend = vb
					}
				}
			}
		}

		var (
			kpre    = skv.ObjectDocIndexFieldPrefix(key, idx.Seq)
			start   = append(kpre, vstart...)
			end     = append(kpre, vend...)
			fitkeys = map[string]empty{}
		)

		for {

			rs := db.RawScan(start, end, skv.ObjectDocScanMax).Hash()

			for _, v := range rs {

				if _, bkey, ok := skv.ObjectDocIndexRawKeyExport(v.Key, idx.Length); ok {

					if sls_ok {

						fitkeys[string(bkey)] = empty{}

					} else {
						sls = append(sls, dbutil.BytesClone(bkey))
					}
				}

				start = skv.ObjectDocBytesIncr(v.Key)
			}

			if uint32(len(rs)) < skv.ObjectDocScanMax {
				break
			}
		}

		if sls_ok {

			sls_buf := sls
			sls = [][]byte{}

			for _, gv := range sls_buf {

				if _, ok := fitkeys[string(gv)]; ok {
					sls = append(sls, gv)
				}
			}
		}

		sls_ok = true
	}

	if !sls_ok {

		// TOPO
		tls := db.ObjectScan(fold, "", "", uint32(qry.Offset+qry.Limit)).Hash()
		for i := qry.Offset; i < len(tls); i++ {
			rpl.Data = append(rpl.Data, tls[i].Key, tls[i].Value)
		}

		return rpl
	}

	if len(sls) <= qry.Offset {
		return rpl
	}

	cutoff := qry.Offset + qry.Limit
	if cutoff > len(sls) {
		cutoff = len(sls)
	}

	for i := qry.Offset; i < cutoff; i++ {
		if rs := db.ObjectDocGet(fold, dbutil.BytesToHexString(sls[i])); rs.Status == skv.ReplyOK {
			rpl.Data = append(rpl.Data, sls[i], rs.Bytes())
		}
	}

	rpl.Status = skv.ReplyOK

	return rpl
}