Simplify s[:] to s where s is a slice

services/snapshotter/service.go

@@ -246,7 +246,7 @@ func (s *Service) respondIDMap(conn net.Conn, IDMap map[uint64]uint64) error {
 		next += 16
 	}
 
-	_, err := conn.Write(numBytes[:])
+	_, err := conn.Write(numBytes)
 	return err
 }
 

tsdb/engine/tsm1/engine.go

@@ -2997,7 +2997,7 @@ func SeriesFieldKey(seriesKey, field string) string {
 
 func SeriesFieldKeyBytes(seriesKey, field string) []byte {
 	b := make([]byte, len(seriesKey)+len(keyFieldSeparator)+len(field))
-	i := copy(b[:], seriesKey)
+	i := copy(b, seriesKey)
 	i += copy(b[i:], keyFieldSeparatorBytes)
 	copy(b[i:], field)
 	return b

tsdb/engine/tsm1/reader.go

@@ -977,7 +977,7 @@ func (d *indirectIndex) Delete(keys [][]byte) {
 
 		if len(keys) > 0 && bytes.Equal(keys[0], indexKey) {
 			keys = keys[1:]
-			copy(d.offsets[i:i+4], nilOffset[:])
+			copy(d.offsets[i:i+4], nilOffset)
 		}
 	}
 	d.offsets = bytesutil.Pack(d.offsets, 4, 255)

tsdb/index/tsi1/index.go

@@ -553,7 +553,7 @@ func (i *Index) fetchByteValues(fn func(idx int) ([][]byte, error)) ([][]byte, e
 	}
 
 	// It's now safe to read from names.
-	return slices.MergeSortedBytes(names[:]...), nil
+	return slices.MergeSortedBytes(names...), nil
 }
 
 // MeasurementIterator returns an iterator over all measurements.

tsdb/index/tsi1/partition.go

@@ -1228,7 +1228,7 @@ func NewManifest(path string) *Manifest {
 		Version: Version,
 		path:    path,
 	}
-	copy(m.Levels, DefaultCompactionLevels[:])
+	copy(m.Levels, DefaultCompactionLevels)
 	return m
 }