diff --git a/lib/logstorage/filter.go b/lib/logstorage/filter.go
index 93a2e6005..ba4e445e2 100644
--- a/lib/logstorage/filter.go
+++ b/lib/logstorage/filter.go
@@ -72,45 +72,6 @@ func (sf *streamFilter) apply(bs *blockSearch, bm *bitmap) {
 	}
 }
 
-// timeFilter filters by time.
-//
-// It is expressed as `_time:(start, end]` in LogsQL.
-type timeFilter struct {
-	minTimestamp int64
-	maxTimestamp int64
-
-	stringRepr string
-}
-
-func (tf *timeFilter) String() string {
-	return "_time:" + tf.stringRepr
-}
-
-func (tf *timeFilter) apply(bs *blockSearch, bm *bitmap) {
-	minTimestamp := tf.minTimestamp
-	maxTimestamp := tf.maxTimestamp
-
-	if minTimestamp > maxTimestamp {
-		bm.resetBits()
-		return
-	}
-
-	th := bs.bsw.bh.timestampsHeader
-	if minTimestamp > th.maxTimestamp || maxTimestamp < th.minTimestamp {
-		bm.resetBits()
-		return
-	}
-	if minTimestamp <= th.minTimestamp && maxTimestamp >= th.maxTimestamp {
-		return
-	}
-
-	timestamps := bs.getTimestamps()
-	bm.forEachSetBit(func(idx int) bool {
-		ts := timestamps[idx]
-		return ts >= minTimestamp && ts <= maxTimestamp
-	})
-}
-
 // sequenceFilter matches an ordered sequence of phrases
 //
 // Example LogsQL: `fieldName:seq(foo, "bar baz")`
diff --git a/lib/logstorage/filter_test.go b/lib/logstorage/filter_test.go
index 2779f5095..ece7cffbb 100644
--- a/lib/logstorage/filter_test.go
+++ b/lib/logstorage/filter_test.go
@@ -480,84 +480,6 @@ func TestComplexFilters(t *testing.T) {
 	testFilterMatchForColumns(t, columns, f, "foo", []int{1, 3, 6})
 }
 
-func TestTimeFilter(t *testing.T) {
-	timestamps := []int64{
-		1,
-		9,
-		123,
-		456,
-		789,
-	}
-
-	// match
-	tf := &timeFilter{
-		minTimestamp: -10,
-		maxTimestamp: 1,
-	}
-	testFilterMatchForTimestamps(t, timestamps, tf, []int{0})
-
-	tf = &timeFilter{
-		minTimestamp: -10,
-		maxTimestamp: 10,
-	}
-	testFilterMatchForTimestamps(t, timestamps, tf, []int{0, 1})
-
-	tf = &timeFilter{
-		minTimestamp: 1,
-		maxTimestamp: 1,
-	}
-	testFilterMatchForTimestamps(t, timestamps, tf, []int{0})
-
-	tf = &timeFilter{
-		minTimestamp: 2,
-		maxTimestamp: 456,
-	}
-	testFilterMatchForTimestamps(t, timestamps, tf, []int{1, 2, 3})
-
-	tf = &timeFilter{
-		minTimestamp: 2,
-		maxTimestamp: 457,
-	}
-	testFilterMatchForTimestamps(t, timestamps, tf, []int{1, 2, 3})
-
-	tf = &timeFilter{
-		minTimestamp: 120,
-		maxTimestamp: 788,
-	}
-	testFilterMatchForTimestamps(t, timestamps, tf, []int{2, 3})
-
-	tf = &timeFilter{
-		minTimestamp: 120,
-		maxTimestamp: 789,
-	}
-	testFilterMatchForTimestamps(t, timestamps, tf, []int{2, 3, 4})
-
-	tf = &timeFilter{
-		minTimestamp: 120,
-		maxTimestamp: 10000,
-	}
-	testFilterMatchForTimestamps(t, timestamps, tf, []int{2, 3, 4})
-
-	tf = &timeFilter{
-		minTimestamp: 789,
-		maxTimestamp: 1000,
-	}
-	testFilterMatchForTimestamps(t, timestamps, tf, []int{4})
-
-	// mismatch
-	tf = &timeFilter{
-		minTimestamp: -1000,
-		maxTimestamp: 0,
-	}
-	testFilterMatchForTimestamps(t, timestamps, tf, nil)
-
-	tf = &timeFilter{
-		minTimestamp: 790,
-		maxTimestamp: 1000,
-	}
-	testFilterMatchForTimestamps(t, timestamps, tf, nil)
-}
-
 func TestStreamFilter(t *testing.T) {
 	columns := []column{
 		{
diff --git a/lib/logstorage/filter_time_test.go b/lib/logstorage/filter_time_test.go
new file mode 100644
index 000000000..6ac1e20c5
--- /dev/null
+++ b/lib/logstorage/filter_time_test.go
@@ -0,0 +1,83 @@
+package logstorage
+
+import (
+	"testing"
+)
+
+func TestFilterTime(t *testing.T) {
+	timestamps := []int64{
+		1,
+		9,
+		123,
+		456,
+		789,
+	}
+
+	// match
+	ft := &filterTime{
+		minTimestamp: -10,
+		maxTimestamp: 1,
+	}
+	testFilterMatchForTimestamps(t, timestamps, ft, []int{0})
+
+	ft = &filterTime{
+		minTimestamp: -10,
+		maxTimestamp: 10,
+	}
+	testFilterMatchForTimestamps(t, timestamps, ft, []int{0, 1})
+
+	ft = &filterTime{
+		minTimestamp: 1,
+		maxTimestamp: 1,
+	}
+	testFilterMatchForTimestamps(t, timestamps, ft, []int{0})
+
+	ft = &filterTime{
+		minTimestamp: 2,
+		maxTimestamp: 456,
+	}
+	testFilterMatchForTimestamps(t, timestamps, ft, []int{1, 2, 3})
+
+	ft = &filterTime{
+		minTimestamp: 2,
+		maxTimestamp: 457,
+	}
+	testFilterMatchForTimestamps(t, timestamps, ft, []int{1, 2, 3})
+
+	ft = &filterTime{
+		minTimestamp: 120,
+		maxTimestamp: 788,
+	}
+	testFilterMatchForTimestamps(t, timestamps, ft, []int{2, 3})
+
+	ft = &filterTime{
+		minTimestamp: 120,
+		maxTimestamp: 789,
+	}
+	testFilterMatchForTimestamps(t, timestamps, ft, []int{2, 3, 4})
+
+	ft = &filterTime{
+		minTimestamp: 120,
+		maxTimestamp: 10000,
+	}
+	testFilterMatchForTimestamps(t, timestamps, ft, []int{2, 3, 4})
+
+	ft = &filterTime{
+		minTimestamp: 789,
+		maxTimestamp: 1000,
+	}
+	testFilterMatchForTimestamps(t, timestamps, ft, []int{4})
+
+	// mismatch
+	ft = &filterTime{
+		minTimestamp: -1000,
+		maxTimestamp: 0,
+	}
+	testFilterMatchForTimestamps(t, timestamps, ft, nil)
+
+	ft = &filterTime{
+		minTimestamp: 790,
+		maxTimestamp: 1000,
+	}
+	testFilterMatchForTimestamps(t, timestamps, ft, nil)
+}
diff --git a/lib/logstorage/parser.go b/lib/logstorage/parser.go
index 2072f33dd..e8cd88711 100644
--- a/lib/logstorage/parser.go
+++ b/lib/logstorage/parser.go
@@ -432,7 +432,7 @@ func parseFilterForPhrase(lex *lexer, phrase, fieldName string) (filter, error)
 	}
 	switch fieldName {
 	case "_time":
-		return parseTimeFilterWithOffset(lex)
+		return parseFilterTimeWithOffset(lex)
 	case "_stream":
 		return parseStreamFilter(lex)
 	default:
@@ -812,30 +812,30 @@ func startsWithYear(s string) bool {
 	return c == '-' || c == '+' || c == 'Z' || c == 'z'
 }
 
-func parseTimeFilterWithOffset(lex *lexer) (*timeFilter, error) {
-	tf, err := parseTimeFilter(lex)
+func parseFilterTimeWithOffset(lex *lexer) (*filterTime, error) {
+	ft, err := parseFilterTime(lex)
 	if err != nil {
 		return nil, err
 	}
 	if !lex.isKeyword("offset") {
-		return tf, nil
+		return ft, nil
 	}
 	if !lex.mustNextToken() {
-		return nil, fmt.Errorf("missing offset for _time filter %s", tf)
+		return nil, fmt.Errorf("missing offset for _time filter %s", ft)
 	}
 	s := getCompoundToken(lex)
 	d, err := promutils.ParseDuration(s)
 	if err != nil {
-		return nil, fmt.Errorf("cannot parse offset for _time filter %s: %w", tf, err)
+		return nil, fmt.Errorf("cannot parse offset for _time filter %s: %w", ft, err)
 	}
 	offset := int64(d)
-	tf.minTimestamp -= offset
-	tf.maxTimestamp -= offset
-	tf.stringRepr += " offset " + s
-	return tf, nil
+	ft.minTimestamp -= offset
+	ft.maxTimestamp -= offset
+	ft.stringRepr += " offset " + s
+	return ft, nil
 }
 
-func parseTimeFilter(lex *lexer) (*timeFilter, error) {
+func parseFilterTime(lex *lexer) (*filterTime, error) {
 	startTimeInclude := false
 	switch {
 	case lex.isKeyword("["):
@@ -853,13 +853,13 @@ func parseTimeFilter(lex *lexer) (*timeFilter, error) {
 			}
 			startTime := int64(t * 1e9)
 			endTime := getMatchingEndTime(startTime, s)
-			tf := &timeFilter{
+			ft := &filterTime{
 				minTimestamp: startTime,
 				maxTimestamp: endTime,
 
 				stringRepr: s,
 			}
-			return tf, nil
+			return ft, nil
 		}
 		// Parse _time:duration, which transforms to '_time:(now-duration, now]'
 		d, err := promutils.ParseDuration(s)
@@ -869,13 +869,13 @@ func parseTimeFilter(lex *lexer) (*timeFilter, error) {
 		if d < 0 {
 			d = -d
 		}
-		tf := &timeFilter{
+		ft := &filterTime{
 			minTimestamp: lex.currentTimestamp - int64(d),
 			maxTimestamp: lex.currentTimestamp,
 
 			stringRepr: s,
 		}
-		return tf, nil
+		return ft, nil
 	}
 	if !lex.mustNextToken() {
 		return nil, fmt.Errorf("missing start time in _time filter")
@@ -926,13 +926,13 @@ func parseTimeFilter(lex *lexer) (*timeFilter, error) {
 		endTime--
 	}
 
-	tf := &timeFilter{
+	ft := &filterTime{
 		minTimestamp: startTime,
 		maxTimestamp: endTime,
 
 		stringRepr: stringRepr,
 	}
-	return tf, nil
+	return ft, nil
 }
 
 func getMatchingEndTime(startTime int64, stringRepr string) int64 {
diff --git a/lib/logstorage/parser_test.go b/lib/logstorage/parser_test.go
index 6d2901a4d..25e1846a0 100644
--- a/lib/logstorage/parser_test.go
+++ b/lib/logstorage/parser_test.go
@@ -86,14 +86,14 @@ func TestParseTimeDuration(t *testing.T) {
 		if err != nil {
 			t.Fatalf("unexpected error: %s", err)
 		}
-		tf, ok := q.f.(*timeFilter)
+		ft, ok := q.f.(*filterTime)
 		if !ok {
-			t.Fatalf("unexpected filter; got %T; want *timeFilter; filter: %s", q.f, q.f)
+			t.Fatalf("unexpected filter; got %T; want *filterTime; filter: %s", q.f, q.f)
 		}
-		if tf.stringRepr != s {
-			t.Fatalf("unexpected string represenation for timeFilter; got %q; want %q", tf.stringRepr, s)
+		if ft.stringRepr != s {
+			t.Fatalf("unexpected string represenation for filterTime; got %q; want %q", ft.stringRepr, s)
 		}
-		duration := time.Duration(tf.maxTimestamp - tf.minTimestamp)
+		duration := time.Duration(ft.maxTimestamp - ft.minTimestamp)
 		if duration != durationExpected {
 			t.Fatalf("unexpected duration; got %s; want %s", duration, durationExpected)
 		}
@@ -114,18 +114,18 @@ func TestParseTimeRange(t *testing.T) {
 		if err != nil {
 			t.Fatalf("unexpected error: %s", err)
 		}
-		tf, ok := q.f.(*timeFilter)
+		ft, ok := q.f.(*filterTime)
 		if !ok {
-			t.Fatalf("unexpected filter; got %T; want *timeFilter; filter: %s", q.f, q.f)
+			t.Fatalf("unexpected filter; got %T; want *filterTime; filter: %s", q.f, q.f)
 		}
-		if tf.stringRepr != s {
-			t.Fatalf("unexpected string represenation for timeFilter; got %q; want %q", tf.stringRepr, s)
+		if ft.stringRepr != s {
+			t.Fatalf("unexpected string represenation for filterTime; got %q; want %q", ft.stringRepr, s)
 		}
-		if tf.minTimestamp != minTimestampExpected {
-			t.Fatalf("unexpected minTimestamp; got %s; want %s", timestampToString(tf.minTimestamp), timestampToString(minTimestampExpected))
+		if ft.minTimestamp != minTimestampExpected {
+			t.Fatalf("unexpected minTimestamp; got %s; want %s", timestampToString(ft.minTimestamp), timestampToString(minTimestampExpected))
 		}
-		if tf.maxTimestamp != maxTimestampExpected {
-			t.Fatalf("unexpected maxTimestamp; got %s; want %s", timestampToString(tf.maxTimestamp), timestampToString(maxTimestampExpected))
+		if ft.maxTimestamp != maxTimestampExpected {
+			t.Fatalf("unexpected maxTimestamp; got %s; want %s", timestampToString(ft.maxTimestamp), timestampToString(maxTimestampExpected))
 		}
 	}
 
diff --git a/lib/logstorage/storage_search.go b/lib/logstorage/storage_search.go
index b09bfba85..e94b46972 100644
--- a/lib/logstorage/storage_search.go
+++ b/lib/logstorage/storage_search.go
@@ -248,17 +248,17 @@ func (s *Storage) search(workersCount int, so *genericSearchOptions, stopCh <-ch
 	}
 
 	// Obtain common time filter from so.filter
-	tf, f := getCommonTimeFilter(so.filter)
+	ft, f := getCommonFilterTime(so.filter)
 
 	// Select partitions according to the selected time range
 	s.partitionsLock.Lock()
 	ptws := s.partitions
-	minDay := tf.minTimestamp / nsecPerDay
+	minDay := ft.minTimestamp / nsecPerDay
 	n := sort.Search(len(ptws), func(i int) bool {
 		return ptws[i].day >= minDay
 	})
 	ptws = ptws[n:]
-	maxDay := tf.maxTimestamp / nsecPerDay
+	maxDay := ft.maxTimestamp / nsecPerDay
 	n = sort.Search(len(ptws), func(i int) bool {
 		return ptws[i].day > maxDay
 	})
@@ -279,7 +279,7 @@ func (s *Storage) search(workersCount int, so *genericSearchOptions, stopCh <-ch
 		partitionSearchConcurrencyLimitCh <- struct{}{}
 		wgSearchers.Add(1)
 		go func(idx int, pt *partition) {
-			psfs[idx] = pt.search(tf, sf, f, so, workCh, stopCh)
+			psfs[idx] = pt.search(ft, sf, f, so, workCh, stopCh)
 			wgSearchers.Done()
 			<-partitionSearchConcurrencyLimitCh
 		}(i, ptw.pt)
@@ -308,7 +308,7 @@ var partitionSearchConcurrencyLimitCh = make(chan struct{}, cgroup.AvailableCPUs
 
 type partitionSearchFinalizer func()
 
-func (pt *partition) search(tf *timeFilter, sf *StreamFilter, f filter, so *genericSearchOptions, workCh chan<- []*blockSearchWork, stopCh <-chan struct{}) partitionSearchFinalizer {
+func (pt *partition) search(ft *filterTime, sf *StreamFilter, f filter, so *genericSearchOptions, workCh chan<- []*blockSearchWork, stopCh <-chan struct{}) partitionSearchFinalizer {
 	select {
 	case <-stopCh:
 		// Do not spend CPU time on search, since it is already stopped.
@@ -328,8 +328,8 @@ func (pt *partition) search(tf *timeFilter, sf *StreamFilter, f filter, so *gene
 	soInternal := &searchOptions{
 		tenantIDs:         tenantIDs,
 		streamIDs:         streamIDs,
-		minTimestamp:      tf.minTimestamp,
-		maxTimestamp:      tf.maxTimestamp,
+		minTimestamp:      ft.minTimestamp,
+		maxTimestamp:      ft.maxTimestamp,
 		filter:            f,
 		resultColumnNames: so.resultColumnNames,
 		needAllColumns:    so.needAllColumns,
@@ -713,23 +713,23 @@ func getCommonStreamFilter(f filter) (*StreamFilter, filter) {
 	return nil, f
 }
 
-func getCommonTimeFilter(f filter) (*timeFilter, filter) {
+func getCommonFilterTime(f filter) (*filterTime, filter) {
 	switch t := f.(type) {
 	case *filterAnd:
 		for _, filter := range t.filters {
-			tf, ok := filter.(*timeFilter)
+			ft, ok := filter.(*filterTime)
 			if ok {
-				// The tf must remain in t.filters order to properly filter out rows outside the selected time range
-				return tf, f
+				// The ft must remain in t.filters order to properly filter out rows outside the selected time range
+				return ft, f
 			}
 		}
-	case *timeFilter:
+	case *filterTime:
 		return t, f
 	}
-	return allTimeFilter, f
+	return allFilterTime, f
 }
 
-var allTimeFilter = &timeFilter{
+var allFilterTime = &filterTime{
 	minTimestamp: math.MinInt64,
 	maxTimestamp: math.MaxInt64,
 }
diff --git a/lib/logstorage/storage_search_test.go b/lib/logstorage/storage_search_test.go
index 067b143ee..c2a0ad56f 100644
--- a/lib/logstorage/storage_search_test.go
+++ b/lib/logstorage/storage_search_test.go
@@ -379,7 +379,7 @@ func TestStorageSearch(t *testing.T) {
 
 	getBaseFilter := func(minTimestamp, maxTimestamp int64, sf *StreamFilter) filter {
 		var filters []filter
-		filters = append(filters, &timeFilter{
+		filters = append(filters, &filterTime{
 			minTimestamp: minTimestamp,
 			maxTimestamp: maxTimestamp,
 		})