[#177] metabase: Add index by object ID

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>

go.mod

@@ -14,7 +14,7 @@ require (
 	github.com/multiformats/go-multiaddr-net v0.1.2 // v0.1.1 => v0.1.2
 	github.com/multiformats/go-multihash v0.0.13 // indirect
 	github.com/nspcc-dev/neo-go v0.91.1-pre.0.20201030072836-71216865717b
-	github.com/nspcc-dev/neofs-api-go v1.20.2
+	github.com/nspcc-dev/neofs-api-go v1.20.3-0.20201120074117-20ede88fe753
 	github.com/nspcc-dev/neofs-crypto v0.3.0
 	github.com/nspcc-dev/tzhash v1.4.0
 	github.com/panjf2000/ants/v2 v2.3.0

pkg/local_object_storage/metabase/put.go

@@ -124,6 +124,10 @@ func objectIndices(obj *object.Object, parent bool) []bucketItem {
 			key: v2object.FilterHeaderParent,
 			val: obj.ParentID().String(),
 		},
+		bucketItem{
+			key: v2object.FilterHeaderObjectID,
+			val: obj.ID().String(),
+		},
 		// TODO: add remaining fields after neofs-api#72
 	)
 

pkg/local_object_storage/metabase/select_test.go

@@ -207,3 +207,20 @@ func TestSelectParentID(t *testing.T) {
 
 	testSelect(t, db, fs, obj1.Address())
 }
+
+func TestSelectObjectID(t *testing.T) {
+	db := newDB(t)
+	defer releaseDB(db)
+
+	// generate object
+	obj := generateObject(t, testPrm{})
+
+	// store objects
+	require.NoError(t, db.Put(obj))
+
+	// filter by object ID
+	fs := objectSDK.SearchFilters{}
+	fs.AddObjectIDFilter(objectSDK.MatchStringEqual, obj.ID())
+
+	testSelect(t, db, fs, obj.Address())
+}