From d53a9f8a286b532b290e678966ec88c21ba65cba Mon Sep 17 00:00:00 2001
From: Marco Pracucci <marco@pracucci.com>
Date: Wed, 22 Apr 2020 16:36:49 +0200
Subject: [PATCH 1/5] Added hints support to store protobuf

Signed-off-by: Marco Pracucci <marco@pracucci.com>
---
 pkg/store/storepb/rpc.pb.go | 241 +++++++++++++++++++++++++++---------
 pkg/store/storepb/rpc.proto |  13 ++
 scripts/genproto.sh         |  11 +-
 3 files changed, 199 insertions(+), 66 deletions(-)

diff --git a/pkg/store/storepb/rpc.pb.go b/pkg/store/storepb/rpc.pb.go
index dc6d835753..273a0f7adf 100644
--- a/pkg/store/storepb/rpc.pb.go
+++ b/pkg/store/storepb/rpc.pb.go
@@ -12,6 +12,7 @@ import (
 
 	_ "github.com/gogo/protobuf/gogoproto"
 	proto "github.com/gogo/protobuf/proto"
+	types "github.com/gogo/protobuf/types"
 	prompb "github.com/thanos-io/thanos/pkg/store/storepb/prompb"
 	grpc "google.golang.org/grpc"
 	codes "google.golang.org/grpc/codes"
@@ -340,6 +341,10 @@ type SeriesRequest struct {
 	PartialResponseStrategy PartialResponseStrategy `protobuf:"varint,7,opt,name=partial_response_strategy,json=partialResponseStrategy,proto3,enum=thanos.PartialResponseStrategy" json:"partial_response_strategy,omitempty"`
 	// skip_chunks controls whether sending chunks or not in series responses.
 	SkipChunks bool `protobuf:"varint,8,opt,name=skip_chunks,json=skipChunks,proto3" json:"skip_chunks,omitempty"`
+	// hints_enabled controls whether sending hints or not in the series responses. Hints
+	// are store implementation specific and used to carry information about how the series
+	// have been queried.
+	HintsEnabled bool `protobuf:"varint,9,opt,name=hints_enabled,json=hintsEnabled,proto3" json:"hints_enabled,omitempty"`
 }
 
 func (m *SeriesRequest) Reset()         { *m = SeriesRequest{} }
@@ -379,6 +384,7 @@ type SeriesResponse struct {
 	// Types that are valid to be assigned to Result:
 	//	*SeriesResponse_Series
 	//	*SeriesResponse_Warning
+	//	*SeriesResponse_Hints
 	Result isSeriesResponse_Result `protobuf_oneof:"result"`
 }
 
@@ -427,9 +433,13 @@ type SeriesResponse_Series struct {
 type SeriesResponse_Warning struct {
 	Warning string `protobuf:"bytes,2,opt,name=warning,proto3,oneof" json:"warning,omitempty"`
 }
+type SeriesResponse_Hints struct {
+	Hints *types.Any `protobuf:"bytes,3,opt,name=hints,proto3,oneof" json:"hints,omitempty"`
+}
 
 func (*SeriesResponse_Series) isSeriesResponse_Result()  {}
 func (*SeriesResponse_Warning) isSeriesResponse_Result() {}
+func (*SeriesResponse_Hints) isSeriesResponse_Result()   {}
 
 func (m *SeriesResponse) GetResult() isSeriesResponse_Result {
 	if m != nil {
@@ -452,11 +462,19 @@ func (m *SeriesResponse) GetWarning() string {
 	return ""
 }
 
+func (m *SeriesResponse) GetHints() *types.Any {
+	if x, ok := m.GetResult().(*SeriesResponse_Hints); ok {
+		return x.Hints
+	}
+	return nil
+}
+
 // XXX_OneofWrappers is for the internal use of the proto package.
 func (*SeriesResponse) XXX_OneofWrappers() []interface{} {
 	return []interface{}{
 		(*SeriesResponse_Series)(nil),
 		(*SeriesResponse_Warning)(nil),
+		(*SeriesResponse_Hints)(nil),
 	}
 }
 
@@ -635,65 +653,69 @@ func init() {
 func init() { proto.RegisterFile("rpc.proto", fileDescriptor_77a6da22d6a3feb1) }
 
 var fileDescriptor_77a6da22d6a3feb1 = []byte{
-	// 927 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xa4, 0x56, 0xcd, 0x6e, 0x23, 0x45,
-	0x10, 0x76, 0x7b, 0xfc, 0x5b, 0xde, 0x98, 0xd9, 0x8e, 0x93, 0x9d, 0x78, 0x25, 0xc7, 0x1a, 0x09,
-	0xc9, 0x0a, 0xc8, 0x01, 0x23, 0x40, 0x20, 0x2e, 0xb6, 0xd7, 0xab, 0xb5, 0xd8, 0x38, 0xd0, 0xb6,
-	0xd7, 0xfc, 0x1c, 0xcc, 0xd8, 0x69, 0x9c, 0xd1, 0xce, 0x1f, 0xd3, 0x6d, 0x92, 0x5c, 0xe1, 0x05,
-	0xb8, 0xf2, 0x0e, 0xbc, 0x05, 0x97, 0x1c, 0xf7, 0x08, 0x17, 0x04, 0xc9, 0x8b, 0xa0, 0xee, 0xe9,
-	0x71, 0x66, 0x96, 0x6c, 0x24, 0x94, 0x5b, 0xd7, 0xf7, 0x55, 0x77, 0x55, 0x7d, 0x5d, 0x35, 0x3d,
-	0x50, 0x0e, 0x83, 0x65, 0x3b, 0x08, 0x7d, 0xee, 0xe3, 0x02, 0x3f, 0xb5, 0x3c, 0x9f, 0xd5, 0x2b,
-	0xfc, 0x22, 0xa0, 0x2c, 0x02, 0xeb, 0xb5, 0x95, 0xbf, 0xf2, 0xe5, 0xf2, 0x50, 0xac, 0x14, 0x8a,
-	0x83, 0xd0, 0x77, 0x83, 0xc5, 0x61, 0xc2, 0xd3, 0x7c, 0x0b, 0xb6, 0x66, 0xa1, 0xcd, 0x29, 0xa1,
-	0x2c, 0xf0, 0x3d, 0x46, 0xcd, 0x9f, 0x11, 0x3c, 0x50, 0xc8, 0x0f, 0x6b, 0xca, 0x38, 0xee, 0x02,
-	0x70, 0xdb, 0xa5, 0x8c, 0x86, 0x36, 0x65, 0x06, 0x6a, 0x6a, 0xad, 0x4a, 0xe7, 0xb1, 0xd8, 0xed,
-	0x52, 0x7e, 0x4a, 0xd7, 0x6c, 0xbe, 0xf4, 0x83, 0x8b, 0xf6, 0xc4, 0x76, 0xe9, 0x58, 0xba, 0xf4,
-	0x72, 0x97, 0x7f, 0xed, 0x67, 0x48, 0x62, 0x13, 0xde, 0x85, 0x02, 0xa7, 0x9e, 0xe5, 0x71, 0x23,
-	0xdb, 0x44, 0xad, 0x32, 0x51, 0x16, 0x36, 0xa0, 0x18, 0xd2, 0xc0, 0xb1, 0x97, 0x96, 0xa1, 0x35,
-	0x51, 0x4b, 0x23, 0xb1, 0x69, 0x6e, 0x41, 0x65, 0xe8, 0x7d, 0xef, 0xab, 0x1c, 0xcc, 0x3f, 0x11,
-	0x3c, 0x88, 0xec, 0x28, 0x4b, 0xfc, 0x0e, 0x14, 0x1c, 0x6b, 0x41, 0x9d, 0x38, 0xa1, 0xad, 0x76,
-	0x24, 0x43, 0xfb, 0xb9, 0x40, 0x55, 0x0a, 0xca, 0x05, 0xef, 0x41, 0xc9, 0xb5, 0xbd, 0xb9, 0x48,
-	0x48, 0x26, 0xa0, 0x91, 0xa2, 0x6b, 0x7b, 0x22, 0x63, 0x49, 0x59, 0xe7, 0x11, 0xa5, 0x52, 0x70,
-	0xad, 0x73, 0x49, 0x1d, 0x42, 0x99, 0x71, 0x3f, 0xa4, 0x93, 0x8b, 0x80, 0x1a, 0xb9, 0x26, 0x6a,
-	0x55, 0x3b, 0x0f, 0xe3, 0x28, 0xe3, 0x98, 0x20, 0x37, 0x3e, 0xf8, 0x43, 0x00, 0x19, 0x70, 0xce,
-	0x28, 0x67, 0x46, 0x5e, 0xe6, 0xa5, 0xa7, 0xf2, 0x1a, 0x53, 0xae, 0x52, 0x2b, 0x3b, 0xca, 0x66,
-	0xe6, 0xc7, 0x50, 0x8a, 0xc9, 0xff, 0x55, 0x96, 0xf9, 0xab, 0x06, 0x5b, 0x91, 0xe4, 0xf1, 0x55,
-	0x25, 0x0b, 0x45, 0x6f, 0x2e, 0x34, 0x9b, 0x2e, 0xf4, 0x23, 0x41, 0xf1, 0xe5, 0x29, 0x0d, 0x99,
-	0xa1, 0xc9, 0xb0, 0xb5, 0x54, 0xd8, 0xa3, 0x88, 0x54, 0xd1, 0x37, 0xbe, 0xb8, 0x03, 0x3b, 0xe2,
-	0xc8, 0x90, 0x32, 0xdf, 0x59, 0x73, 0xdb, 0xf7, 0xe6, 0x67, 0xb6, 0x77, 0xe2, 0x9f, 0x49, 0xb1,
-	0x34, 0xb2, 0xed, 0x5a, 0xe7, 0x64, 0xc3, 0xcd, 0x24, 0x85, 0xdf, 0x05, 0xb0, 0x56, 0xab, 0x90,
-	0xae, 0x2c, 0x4e, 0x23, 0x8d, 0xaa, 0x9d, 0x07, 0x71, 0xb4, 0xee, 0x6a, 0x15, 0x92, 0x04, 0x8f,
-	0x3f, 0x85, 0xbd, 0xc0, 0x0a, 0xb9, 0x6d, 0x39, 0x22, 0x8a, 0xbc, 0xf9, 0xf9, 0x89, 0xcd, 0xac,
-	0x85, 0x43, 0x4f, 0x8c, 0x42, 0x13, 0xb5, 0x4a, 0xe4, 0x91, 0x72, 0x88, 0x3b, 0xe3, 0x89, 0xa2,
-	0xf1, 0xb7, 0xb7, 0xec, 0x65, 0x3c, 0xb4, 0x38, 0x5d, 0x5d, 0x18, 0x45, 0x79, 0x9d, 0xfb, 0x71,
-	0xe0, 0x2f, 0xd2, 0x67, 0x8c, 0x95, 0xdb, 0x7f, 0x0e, 0x8f, 0x09, 0xbc, 0x0f, 0x15, 0xf6, 0xd2,
-	0x0e, 0xe6, 0xcb, 0xd3, 0xb5, 0xf7, 0x92, 0x19, 0x25, 0x99, 0x0a, 0x08, 0xa8, 0x2f, 0x11, 0xf3,
-	0x3b, 0xa8, 0xc6, 0x57, 0xa3, 0x3a, 0xb6, 0x05, 0x85, 0xcd, 0x08, 0xa1, 0x56, 0xa5, 0x53, 0xdd,
-	0xf4, 0x92, 0x44, 0x9f, 0x65, 0x88, 0xe2, 0x71, 0x1d, 0x8a, 0x67, 0x56, 0xe8, 0xd9, 0xde, 0x2a,
-	0x1a, 0x97, 0x67, 0x19, 0x12, 0x03, 0xbd, 0x12, 0x14, 0x42, 0xca, 0xd6, 0x0e, 0x37, 0x7f, 0x43,
-	0xf0, 0x50, 0x5e, 0xcf, 0xc8, 0x72, 0x6f, 0x3a, 0xe0, 0x4e, 0xc5, 0xd0, 0x3d, 0x14, 0xcb, 0xde,
-	0x4f, 0x31, 0xf3, 0x29, 0xe0, 0x64, 0xb6, 0x4a, 0x94, 0x1a, 0xe4, 0x3d, 0x01, 0xc8, 0x76, 0x2f,
-	0x93, 0xc8, 0xc0, 0x75, 0x28, 0xa9, 0x7a, 0x99, 0x91, 0x95, 0xc4, 0xc6, 0x36, 0x7f, 0x47, 0xea,
-	0xa0, 0x17, 0x96, 0xb3, 0xbe, 0xa9, 0xbb, 0x06, 0x79, 0x39, 0x15, 0xb2, 0xc6, 0x32, 0x89, 0x8c,
-	0xbb, 0xd5, 0xc8, 0xde, 0x43, 0x0d, 0xed, 0x9e, 0x6a, 0x0c, 0x61, 0x3b, 0x55, 0x84, 0x92, 0x63,
-	0x17, 0x0a, 0x3f, 0x4a, 0x44, 0xe9, 0xa1, 0xac, 0xbb, 0x04, 0x39, 0x20, 0x50, 0xde, 0x7c, 0x8d,
-	0x70, 0x05, 0x8a, 0xd3, 0xd1, 0xe7, 0xa3, 0xe3, 0xd9, 0x48, 0xcf, 0xe0, 0x32, 0xe4, 0xbf, 0x9c,
-	0x0e, 0xc8, 0xd7, 0x3a, 0xc2, 0x25, 0xc8, 0x91, 0xe9, 0xf3, 0x81, 0x9e, 0x15, 0x1e, 0xe3, 0xe1,
-	0x93, 0x41, 0xbf, 0x4b, 0x74, 0x4d, 0x78, 0x8c, 0x27, 0xc7, 0x64, 0xa0, 0xe7, 0x04, 0x4e, 0x06,
-	0xfd, 0xc1, 0xf0, 0xc5, 0x40, 0xcf, 0x1f, 0xb4, 0xe1, 0xd1, 0x1b, 0x4a, 0x12, 0x27, 0xcd, 0xba,
-	0x44, 0x1d, 0xdf, 0xed, 0x1d, 0x93, 0x89, 0x8e, 0x0e, 0x7a, 0x90, 0x13, 0xb3, 0x8b, 0x8b, 0xa0,
-	0x91, 0xee, 0x2c, 0xe2, 0xfa, 0xc7, 0xd3, 0xd1, 0x44, 0x47, 0x02, 0x1b, 0x4f, 0x8f, 0xf4, 0xac,
-	0x58, 0x1c, 0x0d, 0x47, 0xba, 0x26, 0x17, 0xdd, 0xaf, 0xa2, 0x98, 0xd2, 0x6b, 0x40, 0xf4, 0x7c,
-	0xe7, 0xa7, 0x2c, 0xe4, 0x65, 0x21, 0xf8, 0x7d, 0xc8, 0x89, 0x6f, 0x3d, 0xde, 0x8e, 0xe5, 0x4d,
-	0xbc, 0x04, 0xf5, 0x5a, 0x1a, 0x54, 0xc2, 0x7d, 0x02, 0x85, 0x68, 0x8c, 0xf0, 0x4e, 0x7a, 0xac,
-	0xe2, 0x6d, 0xbb, 0xaf, 0xc3, 0xd1, 0xc6, 0xf7, 0x10, 0xee, 0x03, 0xdc, 0x34, 0x26, 0xde, 0x4b,
-	0x7d, 0xf9, 0x92, 0xa3, 0x55, 0xaf, 0xdf, 0x46, 0xa9, 0xf8, 0x4f, 0xa1, 0x92, 0xb8, 0x4f, 0x9c,
-	0x76, 0x4d, 0x75, 0x6a, 0xfd, 0xf1, 0xad, 0x5c, 0x74, 0x4e, 0x67, 0x04, 0x55, 0xf9, 0xf6, 0x8a,
-	0x16, 0x8c, 0xc4, 0xf8, 0x0c, 0x2a, 0x84, 0xba, 0x3e, 0xa7, 0x12, 0xc7, 0x9b, 0xf2, 0x93, 0x4f,
-	0x74, 0x7d, 0xe7, 0x35, 0x54, 0x3d, 0xe5, 0x99, 0xde, 0xdb, 0x97, 0xff, 0x34, 0x32, 0x97, 0x57,
-	0x0d, 0xf4, 0xea, 0xaa, 0x81, 0xfe, 0xbe, 0x6a, 0xa0, 0x5f, 0xae, 0x1b, 0x99, 0x57, 0xd7, 0x8d,
-	0xcc, 0x1f, 0xd7, 0x8d, 0xcc, 0x37, 0x45, 0xf9, 0x76, 0x05, 0x8b, 0x45, 0x41, 0xfe, 0x0b, 0x7c,
-	0xf0, 0x6f, 0x00, 0x00, 0x00, 0xff, 0xff, 0xe7, 0x85, 0xb9, 0xc1, 0x57, 0x08, 0x00, 0x00,
+	// 984 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xa4, 0x56, 0x4b, 0x6f, 0x23, 0x45,
+	0x10, 0x9e, 0xf6, 0xf8, 0x59, 0x4e, 0xc2, 0x6c, 0xe7, 0xb1, 0x13, 0xaf, 0xe4, 0x44, 0x83, 0x90,
+	0xac, 0xb0, 0x72, 0xc0, 0x08, 0x10, 0x88, 0x8b, 0x93, 0xf5, 0x2a, 0x11, 0x1b, 0x07, 0xda, 0xc9,
+	0x86, 0xc7, 0xc1, 0x1a, 0x27, 0xbd, 0xe3, 0xd1, 0xce, 0x8b, 0xe9, 0x36, 0x89, 0xaf, 0x70, 0x47,
+	0xfc, 0x10, 0x7e, 0x03, 0x17, 0x2e, 0x39, 0xee, 0x11, 0x2e, 0x08, 0x92, 0x3f, 0x82, 0xfa, 0x31,
+	0x8e, 0x67, 0xc9, 0x46, 0x5a, 0xe5, 0x36, 0xf5, 0x7d, 0xd5, 0x5d, 0x55, 0x5f, 0x75, 0x75, 0x0f,
+	0xd4, 0xd2, 0xe4, 0xb4, 0x9d, 0xa4, 0x31, 0x8f, 0x71, 0x99, 0x8f, 0xdd, 0x28, 0x66, 0x8d, 0x3a,
+	0x9f, 0x26, 0x94, 0x29, 0xb0, 0xb1, 0xe2, 0xc5, 0x5e, 0x2c, 0x3f, 0xb7, 0xc5, 0x97, 0x46, 0x71,
+	0x92, 0xc6, 0x61, 0x32, 0xda, 0x9e, 0xf7, 0x5c, 0xf7, 0xe2, 0xd8, 0x0b, 0xe8, 0xb6, 0xb4, 0x46,
+	0x93, 0x17, 0xdb, 0x6e, 0x34, 0x55, 0x94, 0xf3, 0x0e, 0x2c, 0x9e, 0xa4, 0x3e, 0xa7, 0x84, 0xb2,
+	0x24, 0x8e, 0x18, 0x75, 0x7e, 0x46, 0xb0, 0xa0, 0x91, 0x1f, 0x26, 0x94, 0x71, 0xdc, 0x05, 0xe0,
+	0x7e, 0x48, 0x19, 0x4d, 0x7d, 0xca, 0x6c, 0xb4, 0x69, 0xb6, 0xea, 0x9d, 0x47, 0x62, 0x75, 0x48,
+	0xf9, 0x98, 0x4e, 0xd8, 0xf0, 0x34, 0x4e, 0xa6, 0xed, 0x23, 0x3f, 0xa4, 0x03, 0xe9, 0xb2, 0x53,
+	0xbc, 0xfc, 0x7b, 0xc3, 0x20, 0x73, 0x8b, 0xf0, 0x1a, 0x94, 0x39, 0x8d, 0xdc, 0x88, 0xdb, 0x85,
+	0x4d, 0xd4, 0xaa, 0x11, 0x6d, 0x61, 0x1b, 0x2a, 0x29, 0x4d, 0x02, 0xff, 0xd4, 0xb5, 0xcd, 0x4d,
+	0xd4, 0x32, 0x49, 0x66, 0x3a, 0x8b, 0x50, 0xdf, 0x8f, 0x5e, 0xc4, 0x3a, 0x07, 0xe7, 0x2f, 0x04,
+	0x0b, 0xca, 0x56, 0x59, 0xe2, 0xf7, 0xa1, 0x1c, 0xb8, 0x23, 0x1a, 0x64, 0x09, 0x2d, 0xb6, 0x95,
+	0x42, 0xed, 0x67, 0x02, 0xd5, 0x29, 0x68, 0x17, 0xbc, 0x0e, 0xd5, 0xd0, 0x8f, 0x86, 0x22, 0x21,
+	0x99, 0x80, 0x49, 0x2a, 0xa1, 0x1f, 0x89, 0x8c, 0x25, 0xe5, 0x5e, 0x28, 0x4a, 0xa7, 0x10, 0xba,
+	0x17, 0x92, 0xda, 0x86, 0x1a, 0xe3, 0x71, 0x4a, 0x8f, 0xa6, 0x09, 0xb5, 0x8b, 0x9b, 0xa8, 0xb5,
+	0xd4, 0x79, 0x90, 0x45, 0x19, 0x64, 0x04, 0xb9, 0xf1, 0xc1, 0x1f, 0x03, 0xc8, 0x80, 0x43, 0x46,
+	0x39, 0xb3, 0x4b, 0x32, 0x2f, 0x2b, 0x97, 0xd7, 0x80, 0x72, 0x9d, 0x5a, 0x2d, 0xd0, 0x36, 0x73,
+	0x3e, 0x85, 0x6a, 0x46, 0xbe, 0x55, 0x59, 0xce, 0xef, 0x26, 0x2c, 0x2a, 0xc9, 0xb3, 0x56, 0xcd,
+	0x17, 0x8a, 0xde, 0x5c, 0x68, 0x21, 0x5f, 0xe8, 0x27, 0x82, 0xe2, 0xa7, 0x63, 0x9a, 0x32, 0xdb,
+	0x94, 0x61, 0x57, 0x72, 0x61, 0x0f, 0x14, 0xa9, 0xa3, 0xcf, 0x7c, 0x71, 0x07, 0x56, 0xc5, 0x96,
+	0x29, 0x65, 0x71, 0x30, 0xe1, 0x7e, 0x1c, 0x0d, 0xcf, 0xfd, 0xe8, 0x2c, 0x3e, 0x97, 0x62, 0x99,
+	0x64, 0x39, 0x74, 0x2f, 0xc8, 0x8c, 0x3b, 0x91, 0x14, 0x7e, 0x0c, 0xe0, 0x7a, 0x5e, 0x4a, 0x3d,
+	0x97, 0x53, 0xa5, 0xd1, 0x52, 0x67, 0x21, 0x8b, 0xd6, 0xf5, 0xbc, 0x94, 0xcc, 0xf1, 0xf8, 0x73,
+	0x58, 0x4f, 0xdc, 0x94, 0xfb, 0x6e, 0x20, 0xa2, 0xc8, 0xce, 0x0f, 0xcf, 0x7c, 0xe6, 0x8e, 0x02,
+	0x7a, 0x66, 0x97, 0x37, 0x51, 0xab, 0x4a, 0x1e, 0x6a, 0x87, 0xec, 0x64, 0x3c, 0xd1, 0x34, 0xfe,
+	0xfe, 0x96, 0xb5, 0x8c, 0xa7, 0x2e, 0xa7, 0xde, 0xd4, 0xae, 0xc8, 0x76, 0x6e, 0x64, 0x81, 0xbf,
+	0xca, 0xef, 0x31, 0xd0, 0x6e, 0xff, 0xdb, 0x3c, 0x23, 0xf0, 0x06, 0xd4, 0xd9, 0x4b, 0x3f, 0x19,
+	0x9e, 0x8e, 0x27, 0xd1, 0x4b, 0x66, 0x57, 0x65, 0x2a, 0x20, 0xa0, 0x5d, 0x89, 0xe0, 0x77, 0x61,
+	0x71, 0xec, 0x47, 0x9c, 0x0d, 0x69, 0xa4, 0xb2, 0xad, 0x49, 0x97, 0x05, 0x09, 0xf6, 0x14, 0xe6,
+	0xfc, 0x82, 0x60, 0x29, 0x6b, 0xa0, 0x3e, 0xd7, 0x2d, 0x28, 0xcf, 0x06, 0x0d, 0xb5, 0xea, 0x9d,
+	0xa5, 0xd9, 0x89, 0x93, 0xe8, 0x9e, 0x41, 0x34, 0x8f, 0x1b, 0x50, 0x39, 0x77, 0xd3, 0xc8, 0x8f,
+	0x3c, 0x35, 0x54, 0x7b, 0x06, 0xc9, 0x00, 0xfc, 0x18, 0x4a, 0x32, 0x90, 0x3c, 0xd2, 0xa2, 0x9d,
+	0x6a, 0xfe, 0xdb, 0xd9, 0xfc, 0xb7, 0xbb, 0xd1, 0x74, 0xcf, 0x20, 0xca, 0x69, 0xa7, 0x0a, 0xe5,
+	0x94, 0xb2, 0x49, 0xc0, 0x9d, 0xdf, 0x10, 0x3c, 0x90, 0x2d, 0xef, 0xbb, 0xe1, 0xcd, 0xa9, 0xba,
+	0xb3, 0x0b, 0xe8, 0x1e, 0x5d, 0x28, 0xdc, 0xaf, 0x0b, 0xce, 0x53, 0xc0, 0xf3, 0xd9, 0x6a, 0x09,
+	0x57, 0xa0, 0x14, 0x09, 0x40, 0x8e, 0x50, 0x8d, 0x28, 0x03, 0x37, 0xa0, 0xaa, 0xd5, 0x61, 0x76,
+	0x41, 0x12, 0x33, 0xdb, 0xf9, 0x03, 0xe9, 0x8d, 0x9e, 0xbb, 0xc1, 0xe4, 0xa6, 0xee, 0x15, 0x28,
+	0xc9, 0x49, 0x93, 0x35, 0xd6, 0x88, 0x32, 0xee, 0x56, 0xa3, 0x70, 0x0f, 0x35, 0xcc, 0x7b, 0xaa,
+	0xb1, 0x0f, 0xcb, 0xb9, 0x22, 0xb4, 0x1c, 0x6b, 0x50, 0xfe, 0x51, 0x22, 0x5a, 0x0f, 0x6d, 0xdd,
+	0x25, 0xc8, 0x16, 0x81, 0xda, 0xec, 0x86, 0xc3, 0x75, 0xa8, 0x1c, 0xf7, 0xbf, 0xec, 0x1f, 0x9e,
+	0xf4, 0x2d, 0x03, 0xd7, 0xa0, 0xf4, 0xf5, 0x71, 0x8f, 0x7c, 0x6b, 0x21, 0x5c, 0x85, 0x22, 0x39,
+	0x7e, 0xd6, 0xb3, 0x0a, 0xc2, 0x63, 0xb0, 0xff, 0xa4, 0xb7, 0xdb, 0x25, 0x96, 0x29, 0x3c, 0x06,
+	0x47, 0x87, 0xa4, 0x67, 0x15, 0x05, 0x4e, 0x7a, 0xbb, 0xbd, 0xfd, 0xe7, 0x3d, 0xab, 0xb4, 0xd5,
+	0x86, 0x87, 0x6f, 0x28, 0x49, 0xec, 0x74, 0xd2, 0x25, 0x7a, 0xfb, 0xee, 0xce, 0x21, 0x39, 0xb2,
+	0xd0, 0xd6, 0x0e, 0x14, 0xc5, 0x7d, 0x80, 0x2b, 0x60, 0x92, 0xee, 0x89, 0xe2, 0x76, 0x0f, 0x8f,
+	0xfb, 0x47, 0x16, 0x12, 0xd8, 0xe0, 0xf8, 0xc0, 0x2a, 0x88, 0x8f, 0x83, 0xfd, 0xbe, 0x65, 0xca,
+	0x8f, 0xee, 0x37, 0x2a, 0xa6, 0xf4, 0xea, 0x11, 0xab, 0xd4, 0xf9, 0xa9, 0x00, 0x25, 0x59, 0x08,
+	0xfe, 0x10, 0x8a, 0xe2, 0xfd, 0xc0, 0xcb, 0x99, 0xbc, 0x73, 0xaf, 0x4b, 0x63, 0x25, 0x0f, 0x6a,
+	0xe1, 0x3e, 0x83, 0xb2, 0x1a, 0x3a, 0xbc, 0x9a, 0x1f, 0xc2, 0x6c, 0xd9, 0xda, 0xeb, 0xb0, 0x5a,
+	0xf8, 0x01, 0xc2, 0xbb, 0x00, 0x37, 0x07, 0x13, 0xaf, 0xe7, 0x6e, 0xd3, 0xf9, 0xd1, 0x6a, 0x34,
+	0x6e, 0xa3, 0x74, 0xfc, 0xa7, 0x50, 0x9f, 0xeb, 0x27, 0xce, 0xbb, 0xe6, 0x4e, 0x6a, 0xe3, 0xd1,
+	0xad, 0x9c, 0xda, 0xa7, 0xd3, 0x87, 0x25, 0xf9, 0x9e, 0x8b, 0x23, 0xa8, 0xc4, 0xf8, 0x02, 0xea,
+	0x84, 0x86, 0x31, 0xa7, 0x12, 0xc7, 0xb3, 0xf2, 0xe7, 0x9f, 0xfd, 0xc6, 0xea, 0x6b, 0xa8, 0xfe,
+	0x3d, 0x30, 0x76, 0xde, 0xbb, 0xfc, 0xb7, 0x69, 0x5c, 0x5e, 0x35, 0xd1, 0xab, 0xab, 0x26, 0xfa,
+	0xe7, 0xaa, 0x89, 0x7e, 0xbd, 0x6e, 0x1a, 0xaf, 0xae, 0x9b, 0xc6, 0x9f, 0xd7, 0x4d, 0xe3, 0xbb,
+	0x8a, 0x7c, 0x0f, 0x93, 0xd1, 0xa8, 0x2c, 0x2f, 0x9b, 0x8f, 0xfe, 0x0b, 0x00, 0x00, 0xff, 0xff,
+	0xd8, 0xca, 0x6b, 0xe1, 0xc6, 0x08, 0x00, 0x00,
 }
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -1226,6 +1248,16 @@ func (m *SeriesRequest) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	_ = i
 	var l int
 	_ = l
+	if m.HintsEnabled {
+		i--
+		if m.HintsEnabled {
+			dAtA[i] = 1
+		} else {
+			dAtA[i] = 0
+		}
+		i--
+		dAtA[i] = 0x48
+	}
 	if m.SkipChunks {
 		i--
 		if m.SkipChunks {
@@ -1368,6 +1400,27 @@ func (m *SeriesResponse_Warning) MarshalToSizedBuffer(dAtA []byte) (int, error)
 	dAtA[i] = 0x12
 	return len(dAtA) - i, nil
 }
+func (m *SeriesResponse_Hints) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *SeriesResponse_Hints) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	if m.Hints != nil {
+		{
+			size, err := m.Hints.MarshalToSizedBuffer(dAtA[:i])
+			if err != nil {
+				return 0, err
+			}
+			i -= size
+			i = encodeVarintRpc(dAtA, i, uint64(size))
+		}
+		i--
+		dAtA[i] = 0x1a
+	}
+	return len(dAtA) - i, nil
+}
 func (m *LabelNamesRequest) Marshal() (dAtA []byte, err error) {
 	size := m.Size()
 	dAtA = make([]byte, size)
@@ -1666,6 +1719,9 @@ func (m *SeriesRequest) Size() (n int) {
 	if m.SkipChunks {
 		n += 2
 	}
+	if m.HintsEnabled {
+		n += 2
+	}
 	return n
 }
 
@@ -1703,6 +1759,18 @@ func (m *SeriesResponse_Warning) Size() (n int) {
 	n += 1 + l + sovRpc(uint64(l))
 	return n
 }
+func (m *SeriesResponse_Hints) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	if m.Hints != nil {
+		l = m.Hints.Size()
+		n += 1 + l + sovRpc(uint64(l))
+	}
+	return n
+}
 func (m *LabelNamesRequest) Size() (n int) {
 	if m == nil {
 		return 0
@@ -2542,6 +2610,26 @@ func (m *SeriesRequest) Unmarshal(dAtA []byte) error {
 				}
 			}
 			m.SkipChunks = bool(v != 0)
+		case 9:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field HintsEnabled", wireType)
+			}
+			var v int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowRpc
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				v |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			m.HintsEnabled = bool(v != 0)
 		default:
 			iNdEx = preIndex
 			skippy, err := skipRpc(dAtA[iNdEx:])
@@ -2662,6 +2750,41 @@ func (m *SeriesResponse) Unmarshal(dAtA []byte) error {
 			}
 			m.Result = &SeriesResponse_Warning{string(dAtA[iNdEx:postIndex])}
 			iNdEx = postIndex
+		case 3:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Hints", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowRpc
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthRpc
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthRpc
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			v := &types.Any{}
+			if err := v.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			m.Result = &SeriesResponse_Hints{v}
+			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipRpc(dAtA[iNdEx:])
diff --git a/pkg/store/storepb/rpc.proto b/pkg/store/storepb/rpc.proto
index 4aba405741..39f9b53855 100644
--- a/pkg/store/storepb/rpc.proto
+++ b/pkg/store/storepb/rpc.proto
@@ -7,6 +7,7 @@ package thanos;
 import "types.proto";
 import "gogoproto/gogo.proto";
 import "prompb/types.proto";
+import "google/protobuf/any.proto";
 
 option go_package = "storepb";
 
@@ -114,6 +115,11 @@ message SeriesRequest {
 
   // skip_chunks controls whether sending chunks or not in series responses.
   bool skip_chunks = 8;
+
+  // hints_enabled controls whether sending hints or not in the series responses. Hints
+  // are store implementation specific and used to carry information about how the series
+  // have been queried.
+  bool hints_enabled  = 9;
 }
 
 enum Aggr {
@@ -132,6 +138,13 @@ message SeriesResponse {
     /// warning is considered an information piece in place of series for warning purposes.
     /// It is used to warn query customer about suspicious cases or partial response (if enabled).
     string warning = 2;
+
+    /// hints in an opaque data structure that can be used to carry information about how the series
+    /// have been queried. The content of this field and whether it's supported depends on the
+    /// implementation of a specific store. It's also implementation specific if it's allowed that
+    /// multiple SeriesResponse frames contain hints for a single Series() request and how should they
+    /// be handled in such case (ie. merged vs keep the first/last one).
+    google.protobuf.Any hints = 3;
   }
 }
 
diff --git a/scripts/genproto.sh b/scripts/genproto.sh
index c5660502a7..2cf23474d3 100755
--- a/scripts/genproto.sh
+++ b/scripts/genproto.sh
@@ -29,17 +29,14 @@ DIRS="pkg/store/storepb pkg/store/storepb/prompb"
 echo "generating code"
 for dir in ${DIRS}; do
 	pushd ${dir}
-		${PROTOC_BIN} --gogofast_out=plugins=grpc:. \
+		${PROTOC_BIN} --gogofast_out=\
+Mgoogle/protobuf/any.proto=github.com/gogo/protobuf/types,\
+Mprompb/types.proto=github.com/thanos-io/thanos/pkg/store/storepb/prompb,\
+plugins=grpc:. \
 		  -I=. \
 			-I="${GOGOPROTO_PATH}" \
 			*.proto
 
-		sed -i.bak -E 's/import _ \"gogoproto\"//g' *.pb.go
-		sed -i.bak -E 's/import _ \"google\/protobuf\"//g' *.pb.go
-		# Hacky hack.
-		sed -i.bak -E 's/prompb \"prompb\"/prompb \"github.com\/thanos-io\/thanos\/pkg\/store\/storepb\/prompb\"/g' *.pb.go
-
-		rm -f *.bak
 		${GOIMPORTS_BIN} -w *.pb.go
 	popd
 done

From 2a8a54194b493ec06a51f60f0f006b05ec92521e Mon Sep 17 00:00:00 2001
From: Marco Pracucci <marco@pracucci.com>
Date: Wed, 22 Apr 2020 16:54:14 +0200
Subject: [PATCH 2/5] Updated CHANGELOG

Signed-off-by: Marco Pracucci <marco@pracucci.com>
---
 CHANGELOG.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 66fe87b6c0..5ed8fb2e6d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,10 +15,15 @@ We use *breaking* word for marking changes that are not backward compatible (rel
 
 - [#2501](https://github.com/thanos-io/thanos/pull/2501) Query: gracefully handle additional fields in `SeriesResponse` protobuf message that may be added in the future.
 
+### Added
+
+- [#2502](https://github.com/thanos-io/thanos/pull/2502) Added `hints_enabled` proto field to `SeriesRequest` and `hints` field to `SeriesResponse`. Hints in an opaque data structure that can be used to carry information about how the series and its content is implementation specific.
+
 ### Changed
 
 - [#2505](https://github.com/thanos.io/thanos/pull/2505) Store: remove obsolete `thanos_store_node_info` metric.
 
+
 ## [v0.12.1](https://github.com/thanos-io/thanos/releases/tag/v0.12.1) - 2020.04.20
 
 ### Fixed

From bc5b4905b4c670baa2055b605667564fa6054792 Mon Sep 17 00:00:00 2001
From: Marco Pracucci <marco@pracucci.com>
Date: Wed, 22 Apr 2020 18:36:47 +0200
Subject: [PATCH 3/5] Reworded hints doc

Signed-off-by: Marco Pracucci <marco@pracucci.com>
---
 CHANGELOG.md                | 2 +-
 pkg/store/storepb/rpc.proto | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5ed8fb2e6d..6109598efa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,7 +17,7 @@ We use *breaking* word for marking changes that are not backward compatible (rel
 
 ### Added
 
-- [#2502](https://github.com/thanos-io/thanos/pull/2502) Added `hints_enabled` proto field to `SeriesRequest` and `hints` field to `SeriesResponse`. Hints in an opaque data structure that can be used to carry information about how the series and its content is implementation specific.
+- [#2502](https://github.com/thanos-io/thanos/pull/2502) Added `hints_enabled` proto field to `SeriesRequest` and `hints` field to `SeriesResponse`. Hints in an opaque data structure that can be used to carry additional information from the store and its content is implementation specific.
 
 ### Changed
 
diff --git a/pkg/store/storepb/rpc.proto b/pkg/store/storepb/rpc.proto
index 39f9b53855..a6fce8f2f1 100644
--- a/pkg/store/storepb/rpc.proto
+++ b/pkg/store/storepb/rpc.proto
@@ -139,8 +139,8 @@ message SeriesResponse {
     /// It is used to warn query customer about suspicious cases or partial response (if enabled).
     string warning = 2;
 
-    /// hints in an opaque data structure that can be used to carry information about how the series
-    /// have been queried. The content of this field and whether it's supported depends on the
+    /// hints is an opaque data structure that can be used to carry additional information from
+    /// the store. The content of this field and whether it's supported depends on the
     /// implementation of a specific store. It's also implementation specific if it's allowed that
     /// multiple SeriesResponse frames contain hints for a single Series() request and how should they
     /// be handled in such case (ie. merged vs keep the first/last one).

From 6b0f095457aedb2e8704e5e12a471319ff7770f3 Mon Sep 17 00:00:00 2001
From: Marco Pracucci <marco@pracucci.com>
Date: Thu, 23 Apr 2020 10:15:17 +0200
Subject: [PATCH 4/5] Removed hints_enabled from SeriesRequest

Signed-off-by: Marco Pracucci <marco@pracucci.com>
---
 CHANGELOG.md                |   2 +-
 pkg/store/storepb/rpc.pb.go | 162 ++++++++++++++----------------------
 pkg/store/storepb/rpc.proto |   5 --
 3 files changed, 63 insertions(+), 106 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6109598efa..1c66e5071f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,7 +17,7 @@ We use *breaking* word for marking changes that are not backward compatible (rel
 
 ### Added
 
-- [#2502](https://github.com/thanos-io/thanos/pull/2502) Added `hints_enabled` proto field to `SeriesRequest` and `hints` field to `SeriesResponse`. Hints in an opaque data structure that can be used to carry additional information from the store and its content is implementation specific.
+- [#2502](https://github.com/thanos-io/thanos/pull/2502) Added `hints` field to `SeriesResponse`. Hints in an opaque data structure that can be used to carry additional information from the store and its content is implementation specific.
 
 ### Changed
 
diff --git a/pkg/store/storepb/rpc.pb.go b/pkg/store/storepb/rpc.pb.go
index 273a0f7adf..ee79ba2419 100644
--- a/pkg/store/storepb/rpc.pb.go
+++ b/pkg/store/storepb/rpc.pb.go
@@ -341,10 +341,6 @@ type SeriesRequest struct {
 	PartialResponseStrategy PartialResponseStrategy `protobuf:"varint,7,opt,name=partial_response_strategy,json=partialResponseStrategy,proto3,enum=thanos.PartialResponseStrategy" json:"partial_response_strategy,omitempty"`
 	// skip_chunks controls whether sending chunks or not in series responses.
 	SkipChunks bool `protobuf:"varint,8,opt,name=skip_chunks,json=skipChunks,proto3" json:"skip_chunks,omitempty"`
-	// hints_enabled controls whether sending hints or not in the series responses. Hints
-	// are store implementation specific and used to carry information about how the series
-	// have been queried.
-	HintsEnabled bool `protobuf:"varint,9,opt,name=hints_enabled,json=hintsEnabled,proto3" json:"hints_enabled,omitempty"`
 }
 
 func (m *SeriesRequest) Reset()         { *m = SeriesRequest{} }
@@ -653,69 +649,68 @@ func init() {
 func init() { proto.RegisterFile("rpc.proto", fileDescriptor_77a6da22d6a3feb1) }
 
 var fileDescriptor_77a6da22d6a3feb1 = []byte{
-	// 984 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xa4, 0x56, 0x4b, 0x6f, 0x23, 0x45,
-	0x10, 0x9e, 0xf6, 0xf8, 0x59, 0x4e, 0xc2, 0x6c, 0xe7, 0xb1, 0x13, 0xaf, 0xe4, 0x44, 0x83, 0x90,
-	0xac, 0xb0, 0x72, 0xc0, 0x08, 0x10, 0x88, 0x8b, 0x93, 0xf5, 0x2a, 0x11, 0x1b, 0x07, 0xda, 0xc9,
-	0x86, 0xc7, 0xc1, 0x1a, 0x27, 0xbd, 0xe3, 0xd1, 0xce, 0x8b, 0xe9, 0x36, 0x89, 0xaf, 0x70, 0x47,
-	0xfc, 0x10, 0x7e, 0x03, 0x17, 0x2e, 0x39, 0xee, 0x11, 0x2e, 0x08, 0x92, 0x3f, 0x82, 0xfa, 0x31,
-	0x8e, 0x67, 0xc9, 0x46, 0x5a, 0xe5, 0x36, 0xf5, 0x7d, 0xd5, 0x5d, 0x55, 0x5f, 0x75, 0x75, 0x0f,
-	0xd4, 0xd2, 0xe4, 0xb4, 0x9d, 0xa4, 0x31, 0x8f, 0x71, 0x99, 0x8f, 0xdd, 0x28, 0x66, 0x8d, 0x3a,
-	0x9f, 0x26, 0x94, 0x29, 0xb0, 0xb1, 0xe2, 0xc5, 0x5e, 0x2c, 0x3f, 0xb7, 0xc5, 0x97, 0x46, 0x71,
-	0x92, 0xc6, 0x61, 0x32, 0xda, 0x9e, 0xf7, 0x5c, 0xf7, 0xe2, 0xd8, 0x0b, 0xe8, 0xb6, 0xb4, 0x46,
-	0x93, 0x17, 0xdb, 0x6e, 0x34, 0x55, 0x94, 0xf3, 0x0e, 0x2c, 0x9e, 0xa4, 0x3e, 0xa7, 0x84, 0xb2,
-	0x24, 0x8e, 0x18, 0x75, 0x7e, 0x46, 0xb0, 0xa0, 0x91, 0x1f, 0x26, 0x94, 0x71, 0xdc, 0x05, 0xe0,
-	0x7e, 0x48, 0x19, 0x4d, 0x7d, 0xca, 0x6c, 0xb4, 0x69, 0xb6, 0xea, 0x9d, 0x47, 0x62, 0x75, 0x48,
-	0xf9, 0x98, 0x4e, 0xd8, 0xf0, 0x34, 0x4e, 0xa6, 0xed, 0x23, 0x3f, 0xa4, 0x03, 0xe9, 0xb2, 0x53,
-	0xbc, 0xfc, 0x7b, 0xc3, 0x20, 0x73, 0x8b, 0xf0, 0x1a, 0x94, 0x39, 0x8d, 0xdc, 0x88, 0xdb, 0x85,
-	0x4d, 0xd4, 0xaa, 0x11, 0x6d, 0x61, 0x1b, 0x2a, 0x29, 0x4d, 0x02, 0xff, 0xd4, 0xb5, 0xcd, 0x4d,
-	0xd4, 0x32, 0x49, 0x66, 0x3a, 0x8b, 0x50, 0xdf, 0x8f, 0x5e, 0xc4, 0x3a, 0x07, 0xe7, 0x2f, 0x04,
-	0x0b, 0xca, 0x56, 0x59, 0xe2, 0xf7, 0xa1, 0x1c, 0xb8, 0x23, 0x1a, 0x64, 0x09, 0x2d, 0xb6, 0x95,
-	0x42, 0xed, 0x67, 0x02, 0xd5, 0x29, 0x68, 0x17, 0xbc, 0x0e, 0xd5, 0xd0, 0x8f, 0x86, 0x22, 0x21,
-	0x99, 0x80, 0x49, 0x2a, 0xa1, 0x1f, 0x89, 0x8c, 0x25, 0xe5, 0x5e, 0x28, 0x4a, 0xa7, 0x10, 0xba,
-	0x17, 0x92, 0xda, 0x86, 0x1a, 0xe3, 0x71, 0x4a, 0x8f, 0xa6, 0x09, 0xb5, 0x8b, 0x9b, 0xa8, 0xb5,
-	0xd4, 0x79, 0x90, 0x45, 0x19, 0x64, 0x04, 0xb9, 0xf1, 0xc1, 0x1f, 0x03, 0xc8, 0x80, 0x43, 0x46,
-	0x39, 0xb3, 0x4b, 0x32, 0x2f, 0x2b, 0x97, 0xd7, 0x80, 0x72, 0x9d, 0x5a, 0x2d, 0xd0, 0x36, 0x73,
-	0x3e, 0x85, 0x6a, 0x46, 0xbe, 0x55, 0x59, 0xce, 0xef, 0x26, 0x2c, 0x2a, 0xc9, 0xb3, 0x56, 0xcd,
-	0x17, 0x8a, 0xde, 0x5c, 0x68, 0x21, 0x5f, 0xe8, 0x27, 0x82, 0xe2, 0xa7, 0x63, 0x9a, 0x32, 0xdb,
-	0x94, 0x61, 0x57, 0x72, 0x61, 0x0f, 0x14, 0xa9, 0xa3, 0xcf, 0x7c, 0x71, 0x07, 0x56, 0xc5, 0x96,
-	0x29, 0x65, 0x71, 0x30, 0xe1, 0x7e, 0x1c, 0x0d, 0xcf, 0xfd, 0xe8, 0x2c, 0x3e, 0x97, 0x62, 0x99,
-	0x64, 0x39, 0x74, 0x2f, 0xc8, 0x8c, 0x3b, 0x91, 0x14, 0x7e, 0x0c, 0xe0, 0x7a, 0x5e, 0x4a, 0x3d,
-	0x97, 0x53, 0xa5, 0xd1, 0x52, 0x67, 0x21, 0x8b, 0xd6, 0xf5, 0xbc, 0x94, 0xcc, 0xf1, 0xf8, 0x73,
-	0x58, 0x4f, 0xdc, 0x94, 0xfb, 0x6e, 0x20, 0xa2, 0xc8, 0xce, 0x0f, 0xcf, 0x7c, 0xe6, 0x8e, 0x02,
-	0x7a, 0x66, 0x97, 0x37, 0x51, 0xab, 0x4a, 0x1e, 0x6a, 0x87, 0xec, 0x64, 0x3c, 0xd1, 0x34, 0xfe,
-	0xfe, 0x96, 0xb5, 0x8c, 0xa7, 0x2e, 0xa7, 0xde, 0xd4, 0xae, 0xc8, 0x76, 0x6e, 0x64, 0x81, 0xbf,
-	0xca, 0xef, 0x31, 0xd0, 0x6e, 0xff, 0xdb, 0x3c, 0x23, 0xf0, 0x06, 0xd4, 0xd9, 0x4b, 0x3f, 0x19,
-	0x9e, 0x8e, 0x27, 0xd1, 0x4b, 0x66, 0x57, 0x65, 0x2a, 0x20, 0xa0, 0x5d, 0x89, 0xe0, 0x77, 0x61,
-	0x71, 0xec, 0x47, 0x9c, 0x0d, 0x69, 0xa4, 0xb2, 0xad, 0x49, 0x97, 0x05, 0x09, 0xf6, 0x14, 0xe6,
-	0xfc, 0x82, 0x60, 0x29, 0x6b, 0xa0, 0x3e, 0xd7, 0x2d, 0x28, 0xcf, 0x06, 0x0d, 0xb5, 0xea, 0x9d,
-	0xa5, 0xd9, 0x89, 0x93, 0xe8, 0x9e, 0x41, 0x34, 0x8f, 0x1b, 0x50, 0x39, 0x77, 0xd3, 0xc8, 0x8f,
-	0x3c, 0x35, 0x54, 0x7b, 0x06, 0xc9, 0x00, 0xfc, 0x18, 0x4a, 0x32, 0x90, 0x3c, 0xd2, 0xa2, 0x9d,
-	0x6a, 0xfe, 0xdb, 0xd9, 0xfc, 0xb7, 0xbb, 0xd1, 0x74, 0xcf, 0x20, 0xca, 0x69, 0xa7, 0x0a, 0xe5,
-	0x94, 0xb2, 0x49, 0xc0, 0x9d, 0xdf, 0x10, 0x3c, 0x90, 0x2d, 0xef, 0xbb, 0xe1, 0xcd, 0xa9, 0xba,
-	0xb3, 0x0b, 0xe8, 0x1e, 0x5d, 0x28, 0xdc, 0xaf, 0x0b, 0xce, 0x53, 0xc0, 0xf3, 0xd9, 0x6a, 0x09,
-	0x57, 0xa0, 0x14, 0x09, 0x40, 0x8e, 0x50, 0x8d, 0x28, 0x03, 0x37, 0xa0, 0xaa, 0xd5, 0x61, 0x76,
-	0x41, 0x12, 0x33, 0xdb, 0xf9, 0x03, 0xe9, 0x8d, 0x9e, 0xbb, 0xc1, 0xe4, 0xa6, 0xee, 0x15, 0x28,
-	0xc9, 0x49, 0x93, 0x35, 0xd6, 0x88, 0x32, 0xee, 0x56, 0xa3, 0x70, 0x0f, 0x35, 0xcc, 0x7b, 0xaa,
-	0xb1, 0x0f, 0xcb, 0xb9, 0x22, 0xb4, 0x1c, 0x6b, 0x50, 0xfe, 0x51, 0x22, 0x5a, 0x0f, 0x6d, 0xdd,
-	0x25, 0xc8, 0x16, 0x81, 0xda, 0xec, 0x86, 0xc3, 0x75, 0xa8, 0x1c, 0xf7, 0xbf, 0xec, 0x1f, 0x9e,
-	0xf4, 0x2d, 0x03, 0xd7, 0xa0, 0xf4, 0xf5, 0x71, 0x8f, 0x7c, 0x6b, 0x21, 0x5c, 0x85, 0x22, 0x39,
-	0x7e, 0xd6, 0xb3, 0x0a, 0xc2, 0x63, 0xb0, 0xff, 0xa4, 0xb7, 0xdb, 0x25, 0x96, 0x29, 0x3c, 0x06,
-	0x47, 0x87, 0xa4, 0x67, 0x15, 0x05, 0x4e, 0x7a, 0xbb, 0xbd, 0xfd, 0xe7, 0x3d, 0xab, 0xb4, 0xd5,
-	0x86, 0x87, 0x6f, 0x28, 0x49, 0xec, 0x74, 0xd2, 0x25, 0x7a, 0xfb, 0xee, 0xce, 0x21, 0x39, 0xb2,
-	0xd0, 0xd6, 0x0e, 0x14, 0xc5, 0x7d, 0x80, 0x2b, 0x60, 0x92, 0xee, 0x89, 0xe2, 0x76, 0x0f, 0x8f,
-	0xfb, 0x47, 0x16, 0x12, 0xd8, 0xe0, 0xf8, 0xc0, 0x2a, 0x88, 0x8f, 0x83, 0xfd, 0xbe, 0x65, 0xca,
-	0x8f, 0xee, 0x37, 0x2a, 0xa6, 0xf4, 0xea, 0x11, 0xab, 0xd4, 0xf9, 0xa9, 0x00, 0x25, 0x59, 0x08,
-	0xfe, 0x10, 0x8a, 0xe2, 0xfd, 0xc0, 0xcb, 0x99, 0xbc, 0x73, 0xaf, 0x4b, 0x63, 0x25, 0x0f, 0x6a,
-	0xe1, 0x3e, 0x83, 0xb2, 0x1a, 0x3a, 0xbc, 0x9a, 0x1f, 0xc2, 0x6c, 0xd9, 0xda, 0xeb, 0xb0, 0x5a,
-	0xf8, 0x01, 0xc2, 0xbb, 0x00, 0x37, 0x07, 0x13, 0xaf, 0xe7, 0x6e, 0xd3, 0xf9, 0xd1, 0x6a, 0x34,
-	0x6e, 0xa3, 0x74, 0xfc, 0xa7, 0x50, 0x9f, 0xeb, 0x27, 0xce, 0xbb, 0xe6, 0x4e, 0x6a, 0xe3, 0xd1,
-	0xad, 0x9c, 0xda, 0xa7, 0xd3, 0x87, 0x25, 0xf9, 0x9e, 0x8b, 0x23, 0xa8, 0xc4, 0xf8, 0x02, 0xea,
-	0x84, 0x86, 0x31, 0xa7, 0x12, 0xc7, 0xb3, 0xf2, 0xe7, 0x9f, 0xfd, 0xc6, 0xea, 0x6b, 0xa8, 0xfe,
-	0x3d, 0x30, 0x76, 0xde, 0xbb, 0xfc, 0xb7, 0x69, 0x5c, 0x5e, 0x35, 0xd1, 0xab, 0xab, 0x26, 0xfa,
-	0xe7, 0xaa, 0x89, 0x7e, 0xbd, 0x6e, 0x1a, 0xaf, 0xae, 0x9b, 0xc6, 0x9f, 0xd7, 0x4d, 0xe3, 0xbb,
-	0x8a, 0x7c, 0x0f, 0x93, 0xd1, 0xa8, 0x2c, 0x2f, 0x9b, 0x8f, 0xfe, 0x0b, 0x00, 0x00, 0xff, 0xff,
-	0xd8, 0xca, 0x6b, 0xe1, 0xc6, 0x08, 0x00, 0x00,
+	// 966 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xa4, 0x55, 0x4b, 0x6f, 0x23, 0x45,
+	0x10, 0x9e, 0xf6, 0xf8, 0x59, 0xde, 0x84, 0xd9, 0xce, 0x63, 0x27, 0x5e, 0xc9, 0x89, 0x46, 0x42,
+	0xb2, 0xc2, 0xca, 0x01, 0x23, 0x40, 0x20, 0x2e, 0x4e, 0xd6, 0xab, 0x44, 0x6c, 0x1c, 0x68, 0x27,
+	0x1b, 0x1e, 0x07, 0x6b, 0xec, 0xf4, 0x8e, 0x47, 0x3b, 0x2f, 0xa6, 0xdb, 0x24, 0xbe, 0xc2, 0x1d,
+	0x71, 0xe5, 0x3f, 0xf0, 0x2f, 0xb8, 0xe4, 0xb8, 0x47, 0xb8, 0x20, 0x48, 0xfe, 0x08, 0xea, 0xc7,
+	0x38, 0x9e, 0x25, 0x1b, 0x09, 0xe5, 0x36, 0xf5, 0x7d, 0xd5, 0x5d, 0x55, 0x5f, 0x55, 0x4d, 0x43,
+	0x2d, 0x4d, 0xc6, 0xed, 0x24, 0x8d, 0x79, 0x8c, 0xcb, 0x7c, 0xe2, 0x46, 0x31, 0x6b, 0xd4, 0xf9,
+	0x2c, 0xa1, 0x4c, 0x81, 0x8d, 0x55, 0x2f, 0xf6, 0x62, 0xf9, 0xb9, 0x23, 0xbe, 0x34, 0x8a, 0x93,
+	0x34, 0x0e, 0x93, 0xd1, 0xce, 0xa2, 0xe7, 0x86, 0x17, 0xc7, 0x5e, 0x40, 0x77, 0xa4, 0x35, 0x9a,
+	0xbe, 0xdc, 0x71, 0xa3, 0x99, 0xa2, 0x9c, 0x77, 0x60, 0xe9, 0x34, 0xf5, 0x39, 0x25, 0x94, 0x25,
+	0x71, 0xc4, 0xa8, 0xf3, 0x13, 0x82, 0x07, 0x1a, 0xf9, 0x7e, 0x4a, 0x19, 0xc7, 0x5d, 0x00, 0xee,
+	0x87, 0x94, 0xd1, 0xd4, 0xa7, 0xcc, 0x46, 0x5b, 0x66, 0xab, 0xde, 0x79, 0x2c, 0x4e, 0x87, 0x94,
+	0x4f, 0xe8, 0x94, 0x0d, 0xc7, 0x71, 0x32, 0x6b, 0x1f, 0xfb, 0x21, 0x1d, 0x48, 0x97, 0xdd, 0xe2,
+	0xe5, 0x5f, 0x9b, 0x06, 0x59, 0x38, 0x84, 0xd7, 0xa1, 0xcc, 0x69, 0xe4, 0x46, 0xdc, 0x2e, 0x6c,
+	0xa1, 0x56, 0x8d, 0x68, 0x0b, 0xdb, 0x50, 0x49, 0x69, 0x12, 0xf8, 0x63, 0xd7, 0x36, 0xb7, 0x50,
+	0xcb, 0x24, 0x99, 0xe9, 0x2c, 0x41, 0xfd, 0x20, 0x7a, 0x19, 0xeb, 0x1c, 0x9c, 0x3f, 0x11, 0x3c,
+	0x50, 0xb6, 0xca, 0x12, 0xbf, 0x07, 0xe5, 0xc0, 0x1d, 0xd1, 0x20, 0x4b, 0x68, 0xa9, 0xad, 0x14,
+	0x6a, 0x3f, 0x17, 0xa8, 0x4e, 0x41, 0xbb, 0xe0, 0x0d, 0xa8, 0x86, 0x7e, 0x34, 0x14, 0x09, 0xc9,
+	0x04, 0x4c, 0x52, 0x09, 0xfd, 0x48, 0x64, 0x2c, 0x29, 0xf7, 0x42, 0x51, 0x3a, 0x85, 0xd0, 0xbd,
+	0x90, 0xd4, 0x0e, 0xd4, 0x18, 0x8f, 0x53, 0x7a, 0x3c, 0x4b, 0xa8, 0x5d, 0xdc, 0x42, 0xad, 0xe5,
+	0xce, 0xc3, 0x2c, 0xca, 0x20, 0x23, 0xc8, 0x8d, 0x0f, 0xfe, 0x08, 0x40, 0x06, 0x1c, 0x32, 0xca,
+	0x99, 0x5d, 0x92, 0x79, 0x59, 0xb9, 0xbc, 0x06, 0x94, 0xeb, 0xd4, 0x6a, 0x81, 0xb6, 0x99, 0xf3,
+	0x09, 0x54, 0x33, 0xf2, 0x7f, 0x95, 0xe5, 0xfc, 0x6a, 0xc2, 0x92, 0x92, 0x3c, 0x6b, 0xd5, 0x62,
+	0xa1, 0xe8, 0xed, 0x85, 0x16, 0xf2, 0x85, 0x7e, 0x2c, 0x28, 0x3e, 0x9e, 0xd0, 0x94, 0xd9, 0xa6,
+	0x0c, 0xbb, 0x9a, 0x0b, 0x7b, 0xa8, 0x48, 0x1d, 0x7d, 0xee, 0x8b, 0x3b, 0xb0, 0x26, 0xae, 0x4c,
+	0x29, 0x8b, 0x83, 0x29, 0xf7, 0xe3, 0x68, 0x78, 0xee, 0x47, 0x67, 0xf1, 0xb9, 0x14, 0xcb, 0x24,
+	0x2b, 0xa1, 0x7b, 0x41, 0xe6, 0xdc, 0xa9, 0xa4, 0xf0, 0x13, 0x00, 0xd7, 0xf3, 0x52, 0xea, 0xb9,
+	0x9c, 0x2a, 0x8d, 0x96, 0x3b, 0x0f, 0xb2, 0x68, 0x5d, 0xcf, 0x4b, 0xc9, 0x02, 0x8f, 0x3f, 0x83,
+	0x8d, 0xc4, 0x4d, 0xb9, 0xef, 0x06, 0x22, 0x8a, 0xec, 0xfc, 0xf0, 0xcc, 0x67, 0xee, 0x28, 0xa0,
+	0x67, 0x76, 0x79, 0x0b, 0xb5, 0xaa, 0xe4, 0x91, 0x76, 0xc8, 0x26, 0xe3, 0xa9, 0xa6, 0xf1, 0x77,
+	0xb7, 0x9c, 0x65, 0x3c, 0x75, 0x39, 0xf5, 0x66, 0x76, 0x45, 0xb6, 0x73, 0x33, 0x0b, 0xfc, 0x65,
+	0xfe, 0x8e, 0x81, 0x76, 0xfb, 0xcf, 0xe5, 0x19, 0x81, 0x37, 0xa1, 0xce, 0x5e, 0xf9, 0xc9, 0x70,
+	0x3c, 0x99, 0x46, 0xaf, 0x98, 0x5d, 0x95, 0xa9, 0x80, 0x80, 0xf6, 0x24, 0xe2, 0xfc, 0x8c, 0x60,
+	0x39, 0xeb, 0x8d, 0x1e, 0xd9, 0x16, 0x94, 0xe7, 0x3b, 0x84, 0x5a, 0xf5, 0xce, 0xf2, 0x7c, 0x98,
+	0x24, 0xba, 0x6f, 0x10, 0xcd, 0xe3, 0x06, 0x54, 0xce, 0xdd, 0x34, 0xf2, 0x23, 0x4f, 0xed, 0xcb,
+	0xbe, 0x41, 0x32, 0x00, 0x3f, 0x81, 0xd2, 0xc4, 0x8f, 0x38, 0x93, 0xd3, 0x2a, 0x3a, 0xa5, 0x56,
+	0xbb, 0x9d, 0xad, 0x76, 0xbb, 0x1b, 0xcd, 0xf6, 0x0d, 0xa2, 0x9c, 0x76, 0xab, 0x50, 0x4e, 0x29,
+	0x9b, 0x06, 0xdc, 0xf9, 0x0d, 0xc1, 0x43, 0xd9, 0xcd, 0xbe, 0x1b, 0xde, 0x0c, 0xcc, 0x9d, 0x02,
+	0xa3, 0x7b, 0x08, 0x5c, 0xb8, 0x9f, 0xc0, 0xce, 0x33, 0xc0, 0x8b, 0xd9, 0x6a, 0x09, 0x57, 0xa1,
+	0x14, 0x09, 0x40, 0x6e, 0x47, 0x8d, 0x28, 0x03, 0x37, 0xa0, 0xaa, 0xd5, 0x61, 0x76, 0x41, 0x12,
+	0x73, 0xdb, 0xf9, 0x1d, 0xe9, 0x8b, 0x5e, 0xb8, 0xc1, 0xf4, 0xa6, 0xee, 0x55, 0x28, 0xc9, 0x25,
+	0x92, 0x35, 0xd6, 0x88, 0x32, 0xee, 0x56, 0xa3, 0x70, 0x0f, 0x35, 0xcc, 0x7b, 0xaa, 0x71, 0x00,
+	0x2b, 0xb9, 0x22, 0xb4, 0x1c, 0xeb, 0x50, 0xfe, 0x41, 0x22, 0x5a, 0x0f, 0x6d, 0xdd, 0x25, 0xc8,
+	0x36, 0x81, 0xda, 0xfc, 0xe7, 0x85, 0xeb, 0x50, 0x39, 0xe9, 0x7f, 0xd1, 0x3f, 0x3a, 0xed, 0x5b,
+	0x06, 0xae, 0x41, 0xe9, 0xab, 0x93, 0x1e, 0xf9, 0xc6, 0x42, 0xb8, 0x0a, 0x45, 0x72, 0xf2, 0xbc,
+	0x67, 0x15, 0x84, 0xc7, 0xe0, 0xe0, 0x69, 0x6f, 0xaf, 0x4b, 0x2c, 0x53, 0x78, 0x0c, 0x8e, 0x8f,
+	0x48, 0xcf, 0x2a, 0x0a, 0x9c, 0xf4, 0xf6, 0x7a, 0x07, 0x2f, 0x7a, 0x56, 0x69, 0xbb, 0x0d, 0x8f,
+	0xde, 0x52, 0x92, 0xb8, 0xe9, 0xb4, 0x4b, 0xf4, 0xf5, 0xdd, 0xdd, 0x23, 0x72, 0x6c, 0xa1, 0xed,
+	0x5d, 0x28, 0x8a, 0x55, 0xc7, 0x15, 0x30, 0x49, 0xf7, 0x54, 0x71, 0x7b, 0x47, 0x27, 0xfd, 0x63,
+	0x0b, 0x09, 0x6c, 0x70, 0x72, 0x68, 0x15, 0xc4, 0xc7, 0xe1, 0x41, 0xdf, 0x32, 0xe5, 0x47, 0xf7,
+	0x6b, 0x15, 0x53, 0x7a, 0xf5, 0x88, 0x55, 0xea, 0xfc, 0x58, 0x80, 0x92, 0x2c, 0x04, 0x7f, 0x00,
+	0x45, 0xf1, 0x34, 0xe0, 0x95, 0x4c, 0xde, 0x85, 0x87, 0xa3, 0xb1, 0x9a, 0x07, 0xb5, 0x70, 0x9f,
+	0x42, 0x59, 0x2d, 0x1d, 0x5e, 0xcb, 0x2f, 0x61, 0x76, 0x6c, 0xfd, 0x4d, 0x58, 0x1d, 0x7c, 0x1f,
+	0xe1, 0x3d, 0x80, 0x9b, 0xc1, 0xc4, 0x1b, 0xb9, 0x1f, 0xe5, 0xe2, 0x6a, 0x35, 0x1a, 0xb7, 0x51,
+	0x3a, 0xfe, 0x33, 0xa8, 0x2f, 0xf4, 0x13, 0xe7, 0x5d, 0x73, 0x93, 0xda, 0x78, 0x7c, 0x2b, 0xa7,
+	0xee, 0xe9, 0xf4, 0x61, 0x59, 0x3e, 0xd5, 0x62, 0x04, 0x95, 0x18, 0x9f, 0x43, 0x9d, 0xd0, 0x30,
+	0xe6, 0x54, 0xe2, 0x78, 0x5e, 0xfe, 0xe2, 0x8b, 0xde, 0x58, 0x7b, 0x03, 0xd5, 0x2f, 0xbf, 0xb1,
+	0xfb, 0xee, 0xe5, 0x3f, 0x4d, 0xe3, 0xf2, 0xaa, 0x89, 0x5e, 0x5f, 0x35, 0xd1, 0xdf, 0x57, 0x4d,
+	0xf4, 0xcb, 0x75, 0xd3, 0x78, 0x7d, 0xdd, 0x34, 0xfe, 0xb8, 0x6e, 0x1a, 0xdf, 0x56, 0xe4, 0x53,
+	0x97, 0x8c, 0x46, 0x65, 0xf9, 0xb3, 0xf9, 0xf0, 0xdf, 0x00, 0x00, 0x00, 0xff, 0xff, 0x74, 0xaa,
+	0x41, 0xe4, 0xa1, 0x08, 0x00, 0x00,
 }
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -1248,16 +1243,6 @@ func (m *SeriesRequest) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	_ = i
 	var l int
 	_ = l
-	if m.HintsEnabled {
-		i--
-		if m.HintsEnabled {
-			dAtA[i] = 1
-		} else {
-			dAtA[i] = 0
-		}
-		i--
-		dAtA[i] = 0x48
-	}
 	if m.SkipChunks {
 		i--
 		if m.SkipChunks {
@@ -1719,9 +1704,6 @@ func (m *SeriesRequest) Size() (n int) {
 	if m.SkipChunks {
 		n += 2
 	}
-	if m.HintsEnabled {
-		n += 2
-	}
 	return n
 }
 
@@ -2610,26 +2592,6 @@ func (m *SeriesRequest) Unmarshal(dAtA []byte) error {
 				}
 			}
 			m.SkipChunks = bool(v != 0)
-		case 9:
-			if wireType != 0 {
-				return fmt.Errorf("proto: wrong wireType = %d for field HintsEnabled", wireType)
-			}
-			var v int
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return ErrIntOverflowRpc
-				}
-				if iNdEx >= l {
-					return io.ErrUnexpectedEOF
-				}
-				b := dAtA[iNdEx]
-				iNdEx++
-				v |= int(b&0x7F) << shift
-				if b < 0x80 {
-					break
-				}
-			}
-			m.HintsEnabled = bool(v != 0)
 		default:
 			iNdEx = preIndex
 			skippy, err := skipRpc(dAtA[iNdEx:])
diff --git a/pkg/store/storepb/rpc.proto b/pkg/store/storepb/rpc.proto
index a6fce8f2f1..d37492439d 100644
--- a/pkg/store/storepb/rpc.proto
+++ b/pkg/store/storepb/rpc.proto
@@ -115,11 +115,6 @@ message SeriesRequest {
 
   // skip_chunks controls whether sending chunks or not in series responses.
   bool skip_chunks = 8;
-
-  // hints_enabled controls whether sending hints or not in the series responses. Hints
-  // are store implementation specific and used to carry information about how the series
-  // have been queried.
-  bool hints_enabled  = 9;
 }
 
 enum Aggr {

From 978fdda2e129386800d0d1435ec3dcb09d650f73 Mon Sep 17 00:00:00 2001
From: Marco Pracucci <marco@pracucci.com>
Date: Thu, 23 Apr 2020 13:41:54 +0200
Subject: [PATCH 5/5] Remove spurious newline after rebase

Signed-off-by: Marco Pracucci <marco@pracucci.com>
---
 CHANGELOG.md | 1 -
 1 file changed, 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1c66e5071f..bf19725f45 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -23,7 +23,6 @@ We use *breaking* word for marking changes that are not backward compatible (rel
 
 - [#2505](https://github.com/thanos.io/thanos/pull/2505) Store: remove obsolete `thanos_store_node_info` metric.
 
-
 ## [v0.12.1](https://github.com/thanos-io/thanos/releases/tag/v0.12.1) - 2020.04.20
 
 ### Fixed