diff --git a/encoding/proto/proto.go b/encoding/proto/proto.go
index 4ba2021bb..5aad595a5 100644
--- a/encoding/proto/proto.go
+++ b/encoding/proto/proto.go
@@ -1016,8 +1016,8 @@ func decodeGroupCounts(a []*internal.GroupCount) []pilosa.GroupCount {
 	other := make([]pilosa.GroupCount, len(a))
 	for i := range a {
 		other[i] = pilosa.GroupCount{
-			decodeFieldRows(a[i].Group),
-			a[i].Count,
+			Group: decodeFieldRows(a[i].Group),
+			Count: a[i].Count,
 		}
 	}
 	return other
diff --git a/executor.go b/executor.go
index 3eb887b4e..89892e5c5 100644
--- a/executor.go
+++ b/executor.go
@@ -879,7 +879,7 @@ func mergeGroupCounts(gc, other []GroupCount) []GroupCount {
 	return gc
 }
 
-func (e *executor) executeGroupByShard(ctx context.Context, index string, c *pql.Call, shard uint64, childRows []RowIDs) ([]GroupCount, error) {
+func (e *executor) executeGroupByShard(_ context.Context, index string, c *pql.Call, shard uint64, childRows []RowIDs) ([]GroupCount, error) {
 	// Fetch index.
 	idx := e.Holder.Index(index)
 	if idx == nil {
@@ -988,7 +988,7 @@ func (e *executor) executeRows(ctx context.Context, index string, c *pql.Call, s
 	return results, nil
 }
 
-func (e *executor) executeRowsShard(ctx context.Context, index string, c *pql.Call, shard uint64) (RowIDs, error) {
+func (e *executor) executeRowsShard(_ context.Context, index string, c *pql.Call, shard uint64) (RowIDs, error) {
 	// Fetch index.
 	idx := e.Holder.Index(index)
 	if idx == nil {
diff --git a/fragment.go b/fragment.go
index a738b0829..9fdcb849a 100644
--- a/fragment.go
+++ b/fragment.go
@@ -1795,8 +1795,9 @@ func (f *fragment) rows(start uint64, filters ...rowFilter) []uint64 {
 		}
 
 		// apply filters
-		addRow, done := true, false
+		addRow := true
 		for _, filter := range filters {
+			var done bool
 			addRow, done = filter(vRow, key, c)
 			if done {
 				return rows