diff --git a/database/models.go b/database/models.go
index 9abba3c0..ebbeb658 100644
--- a/database/models.go
+++ b/database/models.go
@@ -166,22 +166,23 @@ func NewNamespace(name string, versionFormat string) *Namespace {
 // dpkg is the version format of the installer package manager, which in this
 // case could be dpkg or apk.
 type Feature struct {
-	Name          string      `json:"name"`
-	Version       string      `json:"version"`
-	VersionFormat string      `json:"versionFormat"`
-	Type          FeatureType `json:"type"`
+	Name               string      `json:"name"`
+	Version            string      `json:"version"`
+	VersionFormat      string      `json:"versionFormat"`
+	Type               FeatureType `json:"type"`
+	PotentialNamespace Namespace   `json:"potentialNamespace"`
 }
 
-func NewFeature(name string, version string, versionFormat string, featureType FeatureType) *Feature {
-	return &Feature{name, version, versionFormat, featureType}
+func NewFeature(name string, version string, versionFormat string, featureType FeatureType, namespace Namespace) *Feature {
+	return &Feature{name, version, versionFormat, featureType, namespace}
 }
 
-func NewBinaryPackage(name string, version string, versionFormat string) *Feature {
-	return &Feature{name, version, versionFormat, BinaryPackage}
+func NewBinaryPackage(name string, version string, versionFormat string, namespace Namespace) *Feature {
+	return &Feature{name, version, versionFormat, BinaryPackage, namespace}
 }
 
-func NewSourcePackage(name string, version string, versionFormat string) *Feature {
-	return &Feature{name, version, versionFormat, SourcePackage}
+func NewSourcePackage(name string, version string, versionFormat string, namespace Namespace) *Feature {
+	return &Feature{name, version, versionFormat, SourcePackage, namespace}
 }
 
 // NamespacedFeature is a feature with determined namespace and can be affected
diff --git a/database/pgsql/complex_test.go b/database/pgsql/complex_test.go
index 5b42ccfa..28e14479 100644
--- a/database/pgsql/complex_test.go
+++ b/database/pgsql/complex_test.go
@@ -65,7 +65,7 @@ func testGenRandomVulnerabilityAndNamespacedFeature(t *testing.T, store database
 	for i := 0; i < numFeatures; i++ {
 		version := rand.Intn(numFeatures)
 
-		features[i] = *database.NewSourcePackage(featureName, strconv.Itoa(version), featureVersionFormat)
+		features[i] = *database.NewSourcePackage(featureName, strconv.Itoa(version), featureVersionFormat, database.Namespace{})
 		nsFeatures[i] = database.NamespacedFeature{
 			Namespace: namespace,
 			Feature:   features[i],
diff --git a/database/pgsql/feature_test.go b/database/pgsql/feature_test.go
index 574bfeab..4f546c91 100644
--- a/database/pgsql/feature_test.go
+++ b/database/pgsql/feature_test.go
@@ -28,7 +28,7 @@ func TestPersistFeatures(t *testing.T) {
 	defer cleanup()
 
 	invalid := database.Feature{}
-	valid := *database.NewBinaryPackage("mount", "2.31.1-0.4ubuntu3.1", "dpkg")
+	valid := *database.NewBinaryPackage("mount", "2.31.1-0.4ubuntu3.1", "dpkg", database.Namespace{})
 
 	// invalid
 	require.NotNil(t, tx.PersistFeatures([]database.Feature{invalid}))
@@ -45,9 +45,9 @@ func TestPersistNamespacedFeatures(t *testing.T) {
 	defer cleanup()
 
 	// existing features
-	f1 := database.NewSourcePackage("ourchat", "0.5", "dpkg")
+	f1 := database.NewSourcePackage("ourchat", "0.5", "dpkg", database.Namespace{})
 	// non-existing features
-	f2 := database.NewSourcePackage("fake!", "", "")
+	f2 := database.NewSourcePackage("fake!", "", "", database.Namespace{})
 	// exising namespace
 	n1 := database.NewNamespace("debian:7", "dpkg")
 	// non-existing namespace
diff --git a/database/pgsql/testutil.go b/database/pgsql/testutil.go
index abfb743a..475a1b43 100644
--- a/database/pgsql/testutil.go
+++ b/database/pgsql/testutil.go
@@ -38,11 +38,11 @@ import (
 // int keys must be the consistent with the database ID.
 var (
 	realFeatures = map[int]database.Feature{
-		1: {"ourchat", "0.5", "dpkg", "source"},
-		2: {"openssl", "1.0", "dpkg", "source"},
-		3: {"openssl", "2.0", "dpkg", "source"},
-		4: {"fake", "2.0", "rpm", "source"},
-		5: {"mount", "2.31.1-0.4ubuntu3.1", "dpkg", "binary"},
+		1: {"ourchat", "0.5", "dpkg", "source", database.Namespace{}},
+		2: {"openssl", "1.0", "dpkg", "source", database.Namespace{}},
+		3: {"openssl", "2.0", "dpkg", "source", database.Namespace{}},
+		4: {"fake", "2.0", "rpm", "source", database.Namespace{}},
+		5: {"mount", "2.31.1-0.4ubuntu3.1", "dpkg", "binary", database.Namespace{}},
 	}
 
 	realNamespaces = map[int]database.Namespace{
diff --git a/ext/featurefmt/apk/apk_test.go b/ext/featurefmt/apk/apk_test.go
index 72ec5098..ef9fcb24 100644
--- a/ext/featurefmt/apk/apk_test.go
+++ b/ext/featurefmt/apk/apk_test.go
@@ -28,17 +28,17 @@ func TestAPKFeatureDetection(t *testing.T) {
 			"valid case",
 			map[string]string{"lib/apk/db/installed": "apk/testdata/valid"},
 			[]database.Feature{
-				{"apk-tools", "2.6.7-r0", "dpkg", "binary"},
-				{"musl", "1.1.14-r10", "dpkg", "binary"},
-				{"libssl1.0", "1.0.2h-r1", "dpkg", "binary"},
-				{"libc-utils", "0.7-r0", "dpkg", "binary"},
-				{"busybox", "1.24.2-r9", "dpkg", "binary"},
-				{"scanelf", "1.1.6-r0", "dpkg", "binary"},
-				{"alpine-keys", "1.1-r0", "dpkg", "binary"},
-				{"libcrypto1.0", "1.0.2h-r1", "dpkg", "binary"},
-				{"zlib", "1.2.8-r2", "dpkg", "binary"},
-				{"musl-utils", "1.1.14-r10", "dpkg", "binary"},
-				{"alpine-baselayout", "3.0.3-r0", "dpkg", "binary"},
+				{"apk-tools", "2.6.7-r0", "dpkg", "binary", database.Namespace{}},
+				{"musl", "1.1.14-r10", "dpkg", "binary", database.Namespace{}},
+				{"libssl1.0", "1.0.2h-r1", "dpkg", "binary", database.Namespace{}},
+				{"libc-utils", "0.7-r0", "dpkg", "binary", database.Namespace{}},
+				{"busybox", "1.24.2-r9", "dpkg", "binary", database.Namespace{}},
+				{"scanelf", "1.1.6-r0", "dpkg", "binary", database.Namespace{}},
+				{"alpine-keys", "1.1-r0", "dpkg", "binary", database.Namespace{}},
+				{"libcrypto1.0", "1.0.2h-r1", "dpkg", "binary", database.Namespace{}},
+				{"zlib", "1.2.8-r2", "dpkg", "binary", database.Namespace{}},
+				{"musl-utils", "1.1.14-r10", "dpkg", "binary", database.Namespace{}},
+				{"alpine-baselayout", "3.0.3-r0", "dpkg", "binary", database.Namespace{}},
 			},
 		},
 	} {
diff --git a/ext/featurefmt/dpkg/dpkg.go b/ext/featurefmt/dpkg/dpkg.go
index e68f7be1..829b3813 100644
--- a/ext/featurefmt/dpkg/dpkg.go
+++ b/ext/featurefmt/dpkg/dpkg.go
@@ -123,7 +123,7 @@ func parseDpkgDB(scanner *bufio.Scanner) (binaryPackage *database.Feature, sourc
 		if err := versionfmt.Valid(dpkg.ParserName, version); err != nil {
 			log.WithError(err).WithFields(log.Fields{"name": name, "version": version}).Warning("skipped unparseable package")
 		} else {
-			binaryPackage = &database.Feature{name, version, dpkg.ParserName, database.BinaryPackage}
+			binaryPackage = &database.Feature{name, version, dpkg.ParserName, database.BinaryPackage, database.Namespace{}}
 		}
 	}
 
@@ -145,7 +145,7 @@ func parseDpkgDB(scanner *bufio.Scanner) (binaryPackage *database.Feature, sourc
 		if err := versionfmt.Valid(dpkg.ParserName, version); err != nil {
 			log.WithError(err).WithFields(log.Fields{"name": name, "version": version}).Warning("skipped unparseable package")
 		} else {
-			sourcePackage = &database.Feature{sourceName, sourceVersion, dpkg.ParserName, database.SourcePackage}
+			sourcePackage = &database.Feature{sourceName, sourceVersion, dpkg.ParserName, database.SourcePackage, database.Namespace{}}
 		}
 	}
 
diff --git a/ext/featurefmt/dpkg/dpkg_test.go b/ext/featurefmt/dpkg/dpkg_test.go
index 6bfb9bc7..7039e3f9 100644
--- a/ext/featurefmt/dpkg/dpkg_test.go
+++ b/ext/featurefmt/dpkg/dpkg_test.go
@@ -28,168 +28,168 @@ func TestListFeatures(t *testing.T) {
 			"valid status file",
 			map[string]string{"var/lib/dpkg/status": "dpkg/testdata/valid"},
 			[]database.Feature{
-				{"libapt-pkg5.0", "1.6.3ubuntu0.1", "dpkg", "binary"},
-				{"perl-base", "5.26.1-6ubuntu0.2", "dpkg", "binary"},
-				{"libmount1", "2.31.1-0.4ubuntu3.1", "dpkg", "binary"},
-				{"perl", "5.26.1-6ubuntu0.2", "dpkg", "source"},
-				{"libgnutls30", "3.5.18-1ubuntu1", "dpkg", "binary"},
-				{"liblzma5", "5.2.2-1.3", "dpkg", "binary"},
-				{"ncurses-bin", "6.1-1ubuntu1.18.04", "dpkg", "binary"},
-				{"lsb", "9.20170808ubuntu1", "dpkg", "source"},
-				{"sed", "4.4-2", "dpkg", "source"},
-				{"libsystemd0", "237-3ubuntu10.3", "dpkg", "binary"},
-				{"procps", "2:3.3.12-3ubuntu1.1", "dpkg", "source"},
-				{"login", "1:4.5-1ubuntu1", "dpkg", "binary"},
-				{"libunistring2", "0.9.9-0ubuntu1", "dpkg", "binary"},
-				{"sed", "4.4-2", "dpkg", "binary"},
-				{"libselinux", "2.7-2build2", "dpkg", "source"},
-				{"libseccomp", "2.3.1-2.1ubuntu4", "dpkg", "source"},
-				{"libss2", "1.44.1-1", "dpkg", "binary"},
-				{"liblz4-1", "0.0~r131-2ubuntu3", "dpkg", "binary"},
-				{"libsemanage1", "2.7-2build2", "dpkg", "binary"},
-				{"libtasn1-6", "4.13-2", "dpkg", "source"},
-				{"libzstd1", "1.3.3+dfsg-2ubuntu1", "dpkg", "binary"},
-				{"fdisk", "2.31.1-0.4ubuntu3.1", "dpkg", "binary"},
-				{"xz-utils", "5.2.2-1.3", "dpkg", "source"},
-				{"lsb-base", "9.20170808ubuntu1", "dpkg", "binary"},
-				{"libpam-modules-bin", "1.1.8-3.6ubuntu2", "dpkg", "binary"},
-				{"dash", "0.5.8-2.10", "dpkg", "binary"},
-				{"gnupg2", "2.2.4-1ubuntu1.1", "dpkg", "source"},
-				{"libfdisk1", "2.31.1-0.4ubuntu3.1", "dpkg", "binary"},
-				{"lz4", "0.0~r131-2ubuntu3", "dpkg", "source"},
-				{"libpam0g", "1.1.8-3.6ubuntu2", "dpkg", "binary"},
-				{"libc-bin", "2.27-3ubuntu1", "dpkg", "binary"},
-				{"libcap-ng", "0.7.7-3.1", "dpkg", "source"},
-				{"libcom-err2", "1.44.1-1", "dpkg", "binary"},
-				{"libudev1", "237-3ubuntu10.3", "dpkg", "binary"},
-				{"debconf", "1.5.66", "dpkg", "binary"},
-				{"tar", "1.29b-2", "dpkg", "binary"},
-				{"diffutils", "1:3.6-1", "dpkg", "source"},
-				{"gcc-8", "8-20180414-1ubuntu2", "dpkg", "source"},
-				{"e2fsprogs", "1.44.1-1", "dpkg", "source"},
-				{"bzip2", "1.0.6-8.1", "dpkg", "source"},
-				{"diffutils", "1:3.6-1", "dpkg", "binary"},
-				{"grep", "3.1-2", "dpkg", "binary"},
-				{"libgcc1", "1:8-20180414-1ubuntu2", "dpkg", "binary"},
-				{"bash", "4.4.18-2ubuntu1", "dpkg", "source"},
-				{"libtinfo5", "6.1-1ubuntu1.18.04", "dpkg", "binary"},
-				{"procps", "2:3.3.12-3ubuntu1.1", "dpkg", "binary"},
-				{"bzip2", "1.0.6-8.1", "dpkg", "binary"},
-				{"init-system-helpers", "1.51", "dpkg", "binary"},
-				{"libncursesw5", "6.1-1ubuntu1.18.04", "dpkg", "binary"},
-				{"init-system-helpers", "1.51", "dpkg", "source"},
-				{"libpam-modules", "1.1.8-3.6ubuntu2", "dpkg", "binary"},
-				{"libext2fs2", "1.44.1-1", "dpkg", "binary"},
-				{"libacl1", "2.2.52-3build1", "dpkg", "binary"},
-				{"hostname", "3.20", "dpkg", "binary"},
-				{"libgpg-error", "1.27-6", "dpkg", "source"},
-				{"acl", "2.2.52-3build1", "dpkg", "source"},
-				{"apt", "1.6.3ubuntu0.1", "dpkg", "binary"},
-				{"base-files", "10.1ubuntu2.2", "dpkg", "source"},
-				{"libgpg-error0", "1.27-6", "dpkg", "binary"},
-				{"audit", "1:2.8.2-1ubuntu1", "dpkg", "source"},
-				{"hostname", "3.20", "dpkg", "source"},
-				{"gzip", "1.6-5ubuntu1", "dpkg", "binary"},
-				{"libc6", "2.27-3ubuntu1", "dpkg", "binary"},
-				{"libnettle6", "3.4-1", "dpkg", "binary"},
-				{"sysvinit-utils", "2.88dsf-59.10ubuntu1", "dpkg", "binary"},
-				{"debianutils", "4.8.4", "dpkg", "source"},
-				{"libstdc++6", "8-20180414-1ubuntu2", "dpkg", "binary"},
-				{"libsepol", "2.7-1", "dpkg", "source"},
-				{"libpcre3", "2:8.39-9", "dpkg", "binary"},
-				{"libuuid1", "2.31.1-0.4ubuntu3.1", "dpkg", "binary"},
-				{"systemd", "237-3ubuntu10.3", "dpkg", "source"},
-				{"tar", "1.29b-2", "dpkg", "source"},
-				{"ubuntu-keyring", "2018.02.28", "dpkg", "source"},
-				{"passwd", "1:4.5-1ubuntu1", "dpkg", "binary"},
-				{"sysvinit", "2.88dsf-59.10ubuntu1", "dpkg", "source"},
-				{"libidn2-0", "2.0.4-1.1build2", "dpkg", "binary"},
-				{"libhogweed4", "3.4-1", "dpkg", "binary"},
-				{"db5.3", "5.3.28-13.1ubuntu1", "dpkg", "source"},
-				{"sensible-utils", "0.0.12", "dpkg", "source"},
-				{"dpkg", "1.19.0.5ubuntu2", "dpkg", "source"},
-				{"libp11-kit0", "0.23.9-2", "dpkg", "binary"},
-				{"glibc", "2.27-3ubuntu1", "dpkg", "source"},
-				{"mount", "2.31.1-0.4ubuntu3.1", "dpkg", "binary"},
-				{"libsemanage-common", "2.7-2build2", "dpkg", "binary"},
-				{"libblkid1", "2.31.1-0.4ubuntu3.1", "dpkg", "binary"},
-				{"libdebconfclient0", "0.213ubuntu1", "dpkg", "binary"},
-				{"libffi", "3.2.1-8", "dpkg", "source"},
-				{"pam", "1.1.8-3.6ubuntu2", "dpkg", "source"},
-				{"bsdutils", "1:2.31.1-0.4ubuntu3.1", "dpkg", "binary"},
-				{"libtasn1-6", "4.13-2", "dpkg", "binary"},
-				{"libaudit-common", "1:2.8.2-1ubuntu1", "dpkg", "binary"},
-				{"gpgv", "2.2.4-1ubuntu1.1", "dpkg", "binary"},
-				{"libzstd", "1.3.3+dfsg-2ubuntu1", "dpkg", "source"},
-				{"base-passwd", "3.5.44", "dpkg", "source"},
-				{"adduser", "3.116ubuntu1", "dpkg", "binary"},
-				{"libattr1", "1:2.4.47-2build1", "dpkg", "binary"},
-				{"libncurses5", "6.1-1ubuntu1.18.04", "dpkg", "binary"},
-				{"coreutils", "8.28-1ubuntu1", "dpkg", "binary"},
-				{"base-passwd", "3.5.44", "dpkg", "binary"},
-				{"ubuntu-keyring", "2018.02.28", "dpkg", "binary"},
-				{"adduser", "3.116ubuntu1", "dpkg", "source"},
-				{"libsmartcols1", "2.31.1-0.4ubuntu3.1", "dpkg", "binary"},
-				{"libunistring", "0.9.9-0ubuntu1", "dpkg", "source"},
-				{"mawk", "1.3.3-17ubuntu3", "dpkg", "source"},
-				{"coreutils", "8.28-1ubuntu1", "dpkg", "source"},
-				{"attr", "1:2.4.47-2build1", "dpkg", "source"},
-				{"gmp", "2:6.1.2+dfsg-2", "dpkg", "source"},
-				{"libsemanage", "2.7-2build2", "dpkg", "source"},
-				{"libselinux1", "2.7-2build2", "dpkg", "binary"},
-				{"libseccomp2", "2.3.1-2.1ubuntu4", "dpkg", "binary"},
-				{"zlib1g", "1:1.2.11.dfsg-0ubuntu2", "dpkg", "binary"},
-				{"dash", "0.5.8-2.10", "dpkg", "source"},
-				{"gnutls28", "3.5.18-1ubuntu1", "dpkg", "source"},
-				{"libpam-runtime", "1.1.8-3.6ubuntu2", "dpkg", "binary"},
-				{"libgcrypt20", "1.8.1-4ubuntu1.1", "dpkg", "source"},
-				{"sensible-utils", "0.0.12", "dpkg", "binary"},
-				{"p11-kit", "0.23.9-2", "dpkg", "source"},
-				{"ncurses-base", "6.1-1ubuntu1.18.04", "dpkg", "binary"},
-				{"e2fsprogs", "1.44.1-1", "dpkg", "binary"},
-				{"libgcrypt20", "1.8.1-4ubuntu1.1", "dpkg", "binary"},
-				{"libprocps6", "2:3.3.12-3ubuntu1.1", "dpkg", "binary"},
-				{"debconf", "1.5.66", "dpkg", "source"},
-				{"gcc-8-base", "8-20180414-1ubuntu2", "dpkg", "binary"},
-				{"base-files", "10.1ubuntu2.2", "dpkg", "binary"},
-				{"libbz2-1.0", "1.0.6-8.1", "dpkg", "binary"},
-				{"grep", "3.1-2", "dpkg", "source"},
-				{"bash", "4.4.18-2ubuntu1", "dpkg", "binary"},
-				{"libgmp10", "2:6.1.2+dfsg-2", "dpkg", "binary"},
-				{"shadow", "1:4.5-1ubuntu1", "dpkg", "source"},
-				{"libidn2", "2.0.4-1.1build2", "dpkg", "source"},
-				{"gzip", "1.6-5ubuntu1", "dpkg", "source"},
-				{"util-linux", "2.31.1-0.4ubuntu3.1", "dpkg", "binary"},
-				{"libaudit1", "1:2.8.2-1ubuntu1", "dpkg", "binary"},
-				{"libsepol1", "2.7-1", "dpkg", "binary"},
-				{"pcre3", "2:8.39-9", "dpkg", "source"},
-				{"apt", "1.6.3ubuntu0.1", "dpkg", "source"},
-				{"nettle", "3.4-1", "dpkg", "source"},
-				{"util-linux", "2.31.1-0.4ubuntu3.1", "dpkg", "source"},
-				{"libcap-ng0", "0.7.7-3.1", "dpkg", "binary"},
-				{"debianutils", "4.8.4", "dpkg", "binary"},
-				{"ncurses", "6.1-1ubuntu1.18.04", "dpkg", "source"},
-				{"libffi6", "3.2.1-8", "dpkg", "binary"},
-				{"cdebconf", "0.213ubuntu1", "dpkg", "source"},
-				{"findutils", "4.6.0+git+20170828-2", "dpkg", "source"},
-				{"libdb5.3", "5.3.28-13.1ubuntu1", "dpkg", "binary"},
-				{"zlib", "1:1.2.11.dfsg-0ubuntu2", "dpkg", "source"},
-				{"findutils", "4.6.0+git+20170828-2", "dpkg", "binary"},
-				{"dpkg", "1.19.0.5ubuntu2", "dpkg", "binary"},
-				{"mawk", "1.3.3-17ubuntu3", "dpkg", "binary"},
+				{"libapt-pkg5.0", "1.6.3ubuntu0.1", "dpkg", "binary", database.Namespace{}},
+				{"perl-base", "5.26.1-6ubuntu0.2", "dpkg", "binary", database.Namespace{}},
+				{"libmount1", "2.31.1-0.4ubuntu3.1", "dpkg", "binary", database.Namespace{}},
+				{"perl", "5.26.1-6ubuntu0.2", "dpkg", "source", database.Namespace{}},
+				{"libgnutls30", "3.5.18-1ubuntu1", "dpkg", "binary", database.Namespace{}},
+				{"liblzma5", "5.2.2-1.3", "dpkg", "binary", database.Namespace{}},
+				{"ncurses-bin", "6.1-1ubuntu1.18.04", "dpkg", "binary", database.Namespace{}},
+				{"lsb", "9.20170808ubuntu1", "dpkg", "source", database.Namespace{}},
+				{"sed", "4.4-2", "dpkg", "source", database.Namespace{}},
+				{"libsystemd0", "237-3ubuntu10.3", "dpkg", "binary", database.Namespace{}},
+				{"procps", "2:3.3.12-3ubuntu1.1", "dpkg", "source", database.Namespace{}},
+				{"login", "1:4.5-1ubuntu1", "dpkg", "binary", database.Namespace{}},
+				{"libunistring2", "0.9.9-0ubuntu1", "dpkg", "binary", database.Namespace{}},
+				{"sed", "4.4-2", "dpkg", "binary", database.Namespace{}},
+				{"libselinux", "2.7-2build2", "dpkg", "source", database.Namespace{}},
+				{"libseccomp", "2.3.1-2.1ubuntu4", "dpkg", "source", database.Namespace{}},
+				{"libss2", "1.44.1-1", "dpkg", "binary", database.Namespace{}},
+				{"liblz4-1", "0.0~r131-2ubuntu3", "dpkg", "binary", database.Namespace{}},
+				{"libsemanage1", "2.7-2build2", "dpkg", "binary", database.Namespace{}},
+				{"libtasn1-6", "4.13-2", "dpkg", "source", database.Namespace{}},
+				{"libzstd1", "1.3.3+dfsg-2ubuntu1", "dpkg", "binary", database.Namespace{}},
+				{"fdisk", "2.31.1-0.4ubuntu3.1", "dpkg", "binary", database.Namespace{}},
+				{"xz-utils", "5.2.2-1.3", "dpkg", "source", database.Namespace{}},
+				{"lsb-base", "9.20170808ubuntu1", "dpkg", "binary", database.Namespace{}},
+				{"libpam-modules-bin", "1.1.8-3.6ubuntu2", "dpkg", "binary", database.Namespace{}},
+				{"dash", "0.5.8-2.10", "dpkg", "binary", database.Namespace{}},
+				{"gnupg2", "2.2.4-1ubuntu1.1", "dpkg", "source", database.Namespace{}},
+				{"libfdisk1", "2.31.1-0.4ubuntu3.1", "dpkg", "binary", database.Namespace{}},
+				{"lz4", "0.0~r131-2ubuntu3", "dpkg", "source", database.Namespace{}},
+				{"libpam0g", "1.1.8-3.6ubuntu2", "dpkg", "binary", database.Namespace{}},
+				{"libc-bin", "2.27-3ubuntu1", "dpkg", "binary", database.Namespace{}},
+				{"libcap-ng", "0.7.7-3.1", "dpkg", "source", database.Namespace{}},
+				{"libcom-err2", "1.44.1-1", "dpkg", "binary", database.Namespace{}},
+				{"libudev1", "237-3ubuntu10.3", "dpkg", "binary", database.Namespace{}},
+				{"debconf", "1.5.66", "dpkg", "binary", database.Namespace{}},
+				{"tar", "1.29b-2", "dpkg", "binary", database.Namespace{}},
+				{"diffutils", "1:3.6-1", "dpkg", "source", database.Namespace{}},
+				{"gcc-8", "8-20180414-1ubuntu2", "dpkg", "source", database.Namespace{}},
+				{"e2fsprogs", "1.44.1-1", "dpkg", "source", database.Namespace{}},
+				{"bzip2", "1.0.6-8.1", "dpkg", "source", database.Namespace{}},
+				{"diffutils", "1:3.6-1", "dpkg", "binary", database.Namespace{}},
+				{"grep", "3.1-2", "dpkg", "binary", database.Namespace{}},
+				{"libgcc1", "1:8-20180414-1ubuntu2", "dpkg", "binary", database.Namespace{}},
+				{"bash", "4.4.18-2ubuntu1", "dpkg", "source", database.Namespace{}},
+				{"libtinfo5", "6.1-1ubuntu1.18.04", "dpkg", "binary", database.Namespace{}},
+				{"procps", "2:3.3.12-3ubuntu1.1", "dpkg", "binary", database.Namespace{}},
+				{"bzip2", "1.0.6-8.1", "dpkg", "binary", database.Namespace{}},
+				{"init-system-helpers", "1.51", "dpkg", "binary", database.Namespace{}},
+				{"libncursesw5", "6.1-1ubuntu1.18.04", "dpkg", "binary", database.Namespace{}},
+				{"init-system-helpers", "1.51", "dpkg", "source", database.Namespace{}},
+				{"libpam-modules", "1.1.8-3.6ubuntu2", "dpkg", "binary", database.Namespace{}},
+				{"libext2fs2", "1.44.1-1", "dpkg", "binary", database.Namespace{}},
+				{"libacl1", "2.2.52-3build1", "dpkg", "binary", database.Namespace{}},
+				{"hostname", "3.20", "dpkg", "binary", database.Namespace{}},
+				{"libgpg-error", "1.27-6", "dpkg", "source", database.Namespace{}},
+				{"acl", "2.2.52-3build1", "dpkg", "source", database.Namespace{}},
+				{"apt", "1.6.3ubuntu0.1", "dpkg", "binary", database.Namespace{}},
+				{"base-files", "10.1ubuntu2.2", "dpkg", "source", database.Namespace{}},
+				{"libgpg-error0", "1.27-6", "dpkg", "binary", database.Namespace{}},
+				{"audit", "1:2.8.2-1ubuntu1", "dpkg", "source", database.Namespace{}},
+				{"hostname", "3.20", "dpkg", "source", database.Namespace{}},
+				{"gzip", "1.6-5ubuntu1", "dpkg", "binary", database.Namespace{}},
+				{"libc6", "2.27-3ubuntu1", "dpkg", "binary", database.Namespace{}},
+				{"libnettle6", "3.4-1", "dpkg", "binary", database.Namespace{}},
+				{"sysvinit-utils", "2.88dsf-59.10ubuntu1", "dpkg", "binary", database.Namespace{}},
+				{"debianutils", "4.8.4", "dpkg", "source", database.Namespace{}},
+				{"libstdc++6", "8-20180414-1ubuntu2", "dpkg", "binary", database.Namespace{}},
+				{"libsepol", "2.7-1", "dpkg", "source", database.Namespace{}},
+				{"libpcre3", "2:8.39-9", "dpkg", "binary", database.Namespace{}},
+				{"libuuid1", "2.31.1-0.4ubuntu3.1", "dpkg", "binary", database.Namespace{}},
+				{"systemd", "237-3ubuntu10.3", "dpkg", "source", database.Namespace{}},
+				{"tar", "1.29b-2", "dpkg", "source", database.Namespace{}},
+				{"ubuntu-keyring", "2018.02.28", "dpkg", "source", database.Namespace{}},
+				{"passwd", "1:4.5-1ubuntu1", "dpkg", "binary", database.Namespace{}},
+				{"sysvinit", "2.88dsf-59.10ubuntu1", "dpkg", "source", database.Namespace{}},
+				{"libidn2-0", "2.0.4-1.1build2", "dpkg", "binary", database.Namespace{}},
+				{"libhogweed4", "3.4-1", "dpkg", "binary", database.Namespace{}},
+				{"db5.3", "5.3.28-13.1ubuntu1", "dpkg", "source", database.Namespace{}},
+				{"sensible-utils", "0.0.12", "dpkg", "source", database.Namespace{}},
+				{"dpkg", "1.19.0.5ubuntu2", "dpkg", "source", database.Namespace{}},
+				{"libp11-kit0", "0.23.9-2", "dpkg", "binary", database.Namespace{}},
+				{"glibc", "2.27-3ubuntu1", "dpkg", "source", database.Namespace{}},
+				{"mount", "2.31.1-0.4ubuntu3.1", "dpkg", "binary", database.Namespace{}},
+				{"libsemanage-common", "2.7-2build2", "dpkg", "binary", database.Namespace{}},
+				{"libblkid1", "2.31.1-0.4ubuntu3.1", "dpkg", "binary", database.Namespace{}},
+				{"libdebconfclient0", "0.213ubuntu1", "dpkg", "binary", database.Namespace{}},
+				{"libffi", "3.2.1-8", "dpkg", "source", database.Namespace{}},
+				{"pam", "1.1.8-3.6ubuntu2", "dpkg", "source", database.Namespace{}},
+				{"bsdutils", "1:2.31.1-0.4ubuntu3.1", "dpkg", "binary", database.Namespace{}},
+				{"libtasn1-6", "4.13-2", "dpkg", "binary", database.Namespace{}},
+				{"libaudit-common", "1:2.8.2-1ubuntu1", "dpkg", "binary", database.Namespace{}},
+				{"gpgv", "2.2.4-1ubuntu1.1", "dpkg", "binary", database.Namespace{}},
+				{"libzstd", "1.3.3+dfsg-2ubuntu1", "dpkg", "source", database.Namespace{}},
+				{"base-passwd", "3.5.44", "dpkg", "source", database.Namespace{}},
+				{"adduser", "3.116ubuntu1", "dpkg", "binary", database.Namespace{}},
+				{"libattr1", "1:2.4.47-2build1", "dpkg", "binary", database.Namespace{}},
+				{"libncurses5", "6.1-1ubuntu1.18.04", "dpkg", "binary", database.Namespace{}},
+				{"coreutils", "8.28-1ubuntu1", "dpkg", "binary", database.Namespace{}},
+				{"base-passwd", "3.5.44", "dpkg", "binary", database.Namespace{}},
+				{"ubuntu-keyring", "2018.02.28", "dpkg", "binary", database.Namespace{}},
+				{"adduser", "3.116ubuntu1", "dpkg", "source", database.Namespace{}},
+				{"libsmartcols1", "2.31.1-0.4ubuntu3.1", "dpkg", "binary", database.Namespace{}},
+				{"libunistring", "0.9.9-0ubuntu1", "dpkg", "source", database.Namespace{}},
+				{"mawk", "1.3.3-17ubuntu3", "dpkg", "source", database.Namespace{}},
+				{"coreutils", "8.28-1ubuntu1", "dpkg", "source", database.Namespace{}},
+				{"attr", "1:2.4.47-2build1", "dpkg", "source", database.Namespace{}},
+				{"gmp", "2:6.1.2+dfsg-2", "dpkg", "source", database.Namespace{}},
+				{"libsemanage", "2.7-2build2", "dpkg", "source", database.Namespace{}},
+				{"libselinux1", "2.7-2build2", "dpkg", "binary", database.Namespace{}},
+				{"libseccomp2", "2.3.1-2.1ubuntu4", "dpkg", "binary", database.Namespace{}},
+				{"zlib1g", "1:1.2.11.dfsg-0ubuntu2", "dpkg", "binary", database.Namespace{}},
+				{"dash", "0.5.8-2.10", "dpkg", "source", database.Namespace{}},
+				{"gnutls28", "3.5.18-1ubuntu1", "dpkg", "source", database.Namespace{}},
+				{"libpam-runtime", "1.1.8-3.6ubuntu2", "dpkg", "binary", database.Namespace{}},
+				{"libgcrypt20", "1.8.1-4ubuntu1.1", "dpkg", "source", database.Namespace{}},
+				{"sensible-utils", "0.0.12", "dpkg", "binary", database.Namespace{}},
+				{"p11-kit", "0.23.9-2", "dpkg", "source", database.Namespace{}},
+				{"ncurses-base", "6.1-1ubuntu1.18.04", "dpkg", "binary", database.Namespace{}},
+				{"e2fsprogs", "1.44.1-1", "dpkg", "binary", database.Namespace{}},
+				{"libgcrypt20", "1.8.1-4ubuntu1.1", "dpkg", "binary", database.Namespace{}},
+				{"libprocps6", "2:3.3.12-3ubuntu1.1", "dpkg", "binary", database.Namespace{}},
+				{"debconf", "1.5.66", "dpkg", "source", database.Namespace{}},
+				{"gcc-8-base", "8-20180414-1ubuntu2", "dpkg", "binary", database.Namespace{}},
+				{"base-files", "10.1ubuntu2.2", "dpkg", "binary", database.Namespace{}},
+				{"libbz2-1.0", "1.0.6-8.1", "dpkg", "binary", database.Namespace{}},
+				{"grep", "3.1-2", "dpkg", "source", database.Namespace{}},
+				{"bash", "4.4.18-2ubuntu1", "dpkg", "binary", database.Namespace{}},
+				{"libgmp10", "2:6.1.2+dfsg-2", "dpkg", "binary", database.Namespace{}},
+				{"shadow", "1:4.5-1ubuntu1", "dpkg", "source", database.Namespace{}},
+				{"libidn2", "2.0.4-1.1build2", "dpkg", "source", database.Namespace{}},
+				{"gzip", "1.6-5ubuntu1", "dpkg", "source", database.Namespace{}},
+				{"util-linux", "2.31.1-0.4ubuntu3.1", "dpkg", "binary", database.Namespace{}},
+				{"libaudit1", "1:2.8.2-1ubuntu1", "dpkg", "binary", database.Namespace{}},
+				{"libsepol1", "2.7-1", "dpkg", "binary", database.Namespace{}},
+				{"pcre3", "2:8.39-9", "dpkg", "source", database.Namespace{}},
+				{"apt", "1.6.3ubuntu0.1", "dpkg", "source", database.Namespace{}},
+				{"nettle", "3.4-1", "dpkg", "source", database.Namespace{}},
+				{"util-linux", "2.31.1-0.4ubuntu3.1", "dpkg", "source", database.Namespace{}},
+				{"libcap-ng0", "0.7.7-3.1", "dpkg", "binary", database.Namespace{}},
+				{"debianutils", "4.8.4", "dpkg", "binary", database.Namespace{}},
+				{"ncurses", "6.1-1ubuntu1.18.04", "dpkg", "source", database.Namespace{}},
+				{"libffi6", "3.2.1-8", "dpkg", "binary", database.Namespace{}},
+				{"cdebconf", "0.213ubuntu1", "dpkg", "source", database.Namespace{}},
+				{"findutils", "4.6.0+git+20170828-2", "dpkg", "source", database.Namespace{}},
+				{"libdb5.3", "5.3.28-13.1ubuntu1", "dpkg", "binary", database.Namespace{}},
+				{"zlib", "1:1.2.11.dfsg-0ubuntu2", "dpkg", "source", database.Namespace{}},
+				{"findutils", "4.6.0+git+20170828-2", "dpkg", "binary", database.Namespace{}},
+				{"dpkg", "1.19.0.5ubuntu2", "dpkg", "binary", database.Namespace{}},
+				{"mawk", "1.3.3-17ubuntu3", "dpkg", "binary", database.Namespace{}},
 			},
 		},
 		{
 			"corrupted status file",
 			map[string]string{"var/lib/dpkg/status": "dpkg/testdata/corrupted"},
 			[]database.Feature{
-				{"libpam-modules-bin", "1.1.8-3.1ubuntu3", "dpkg", "binary"},
-				{"gcc-5", "5.1.1-12ubuntu1", "dpkg", "source"},
-				{"makedev", "2.3.1-93ubuntu1", "dpkg", "binary"},
-				{"libgcc1", "1:5.1.1-12ubuntu1", "dpkg", "binary"},
-				{"pam", "1.1.8-3.1ubuntu3", "dpkg", "source"},
-				{"makedev", "2.3.1-93ubuntu1", "dpkg", "source"},
-				{"libpam-runtime", "1.1.8-3.1ubuntu3", "dpkg", "binary"},
+				{"libpam-modules-bin", "1.1.8-3.1ubuntu3", "dpkg", "binary", database.Namespace{}},
+				{"gcc-5", "5.1.1-12ubuntu1", "dpkg", "source", database.Namespace{}},
+				{"makedev", "2.3.1-93ubuntu1", "dpkg", "binary", database.Namespace{}},
+				{"libgcc1", "1:5.1.1-12ubuntu1", "dpkg", "binary", database.Namespace{}},
+				{"pam", "1.1.8-3.1ubuntu3", "dpkg", "source", database.Namespace{}},
+				{"makedev", "2.3.1-93ubuntu1", "dpkg", "source", database.Namespace{}},
+				{"libpam-runtime", "1.1.8-3.1ubuntu3", "dpkg", "binary", database.Namespace{}},
 			},
 		},
 	} {
diff --git a/ext/featurefmt/rpm/rpm.go b/ext/featurefmt/rpm/rpm.go
index 388212ea..f8ae887c 100644
--- a/ext/featurefmt/rpm/rpm.go
+++ b/ext/featurefmt/rpm/rpm.go
@@ -122,7 +122,7 @@ func parseRPMOutput(raw string) (rpmPackage *database.Feature, srpmPackage *data
 		return
 	}
 
-	rpmPackage = &database.Feature{name, version, rpm.ParserName, database.BinaryPackage}
+	rpmPackage = &database.Feature{name, version, rpm.ParserName, database.BinaryPackage, database.Namespace{}}
 	srpmName, srpmVersion, srpmRelease, _, err := parseSourceRPM(srpm)
 	if err != nil {
 		log.WithError(err).WithFields(log.Fields{"name": name, "sourcerpm": srpm}).Warning("skipped unparseable package")
@@ -134,7 +134,7 @@ func parseRPMOutput(raw string) (rpmPackage *database.Feature, srpmPackage *data
 		return
 	}
 
-	srpmPackage = &database.Feature{srpmName, srpmVersion, rpm.ParserName, database.SourcePackage}
+	srpmPackage = &database.Feature{srpmName, srpmVersion, rpm.ParserName, database.SourcePackage, database.Namespace{}}
 	return
 }
 
diff --git a/ext/featurefmt/rpm/rpm_test.go b/ext/featurefmt/rpm/rpm_test.go
index ae5a70c5..b85b96d5 100644
--- a/ext/featurefmt/rpm/rpm_test.go
+++ b/ext/featurefmt/rpm/rpm_test.go
@@ -25,307 +25,307 @@ import (
 )
 
 var expectedBigCaseInfo = []database.Feature{
-	{"libmount", "2.32.1-1.fc28", "rpm", "binary"},
-	{"libffi", "3.1-16.fc28", "rpm", "binary"},
-	{"libunistring", "0.9.10-1.fc28", "rpm", "binary"},
-	{"fedora-repos", "28-5", "rpm", "binary"},
-	{"libarchive", "3.3.1-4.fc28", "rpm", "source"},
-	{"langpacks", "1.0-12.fc28", "rpm", "source"},
-	{"readline", "7.0-11.fc28", "rpm", "source"},
-	{"gzip", "1.9-3.fc28", "rpm", "source"},
-	{"libverto", "0.3.0-5.fc28", "rpm", "source"},
-	{"ncurses-base", "6.1-5.20180224.fc28", "rpm", "binary"},
-	{"libfdisk", "2.32.1-1.fc28", "rpm", "binary"},
-	{"libselinux", "2.8-1.fc28", "rpm", "source"},
-	{"nss-util", "3.38.0-1.0.fc28", "rpm", "source"},
-	{"mpfr", "3.1.6-1.fc28", "rpm", "source"},
-	{"libunistring", "0.9.10-1.fc28", "rpm", "source"},
-	{"libpcap", "14:1.9.0-1.fc28", "rpm", "binary"},
-	{"libarchive", "3.3.1-4.fc28", "rpm", "binary"},
-	{"gmp", "1:6.1.2-7.fc28", "rpm", "binary"},
-	{"crypto-policies", "20180425-5.git6ad4018.fc28", "rpm", "source"},
-	{"gzip", "1.9-3.fc28", "rpm", "binary"},
-	{"fedora-release", "28-2", "rpm", "source"},
-	{"zlib", "1.2.11-8.fc28", "rpm", "binary"},
-	{"crypto-policies", "20180425-5.git6ad4018.fc28", "rpm", "binary"},
-	{"lz4", "1.8.1.2-4.fc28", "rpm", "source"},
-	{"keyutils", "1.5.10-6.fc28", "rpm", "source"},
-	{"gpgme", "1.10.0-4.fc28", "rpm", "binary"},
-	{"libgpg-error", "1.31-1.fc28", "rpm", "binary"},
-	{"gnutls", "3.6.3-4.fc28", "rpm", "source"},
-	{"coreutils", "8.29-7.fc28", "rpm", "source"},
-	{"libsepol", "2.8-1.fc28", "rpm", "source"},
-	{"libssh", "0.8.2-1.fc28", "rpm", "binary"},
-	{"libpwquality", "1.4.0-7.fc28", "rpm", "binary"},
-	{"dnf-conf", "2.7.5-12.fc28", "rpm", "binary"},
-	{"basesystem", "11-5.fc28", "rpm", "source"},
-	{"setup", "2.11.4-1.fc28", "rpm", "binary"},
-	{"libmetalink", "0.1.3-6.fc28", "rpm", "source"},
-	{"texinfo", "6.5-4.fc28", "rpm", "source"},
-	{"expat", "2.2.5-3.fc28", "rpm", "source"},
-	{"ncurses", "6.1-5.20180224.fc28", "rpm", "source"},
-	{"libpwquality", "1.4.0-7.fc28", "rpm", "source"},
-	{"pcre", "8.42-3.fc28", "rpm", "binary"},
-	{"sssd", "1.16.3-2.fc28", "rpm", "source"},
-	{"basesystem", "11-5.fc28", "rpm", "binary"},
-	{"systemd-pam", "238-9.git0e0aa59.fc28", "rpm", "binary"},
-	{"python3-six", "1.11.0-3.fc28", "rpm", "binary"},
-	{"libcurl", "7.59.0-6.fc28", "rpm", "binary"},
-	{"qrencode", "3.4.4-5.fc28", "rpm", "source"},
-	{"xz", "5.2.4-2.fc28", "rpm", "source"},
-	{"libpkgconf", "1.4.2-1.fc28", "rpm", "binary"},
-	{"libzstd", "1.3.5-1.fc28", "rpm", "binary"},
-	{"bash", "4.4.23-1.fc28", "rpm", "binary"},
-	{"cyrus-sasl", "2.1.27-0.2rc7.fc28", "rpm", "source"},
-	{"ncurses-libs", "6.1-5.20180224.fc28", "rpm", "binary"},
-	{"xz-libs", "5.2.4-2.fc28", "rpm", "binary"},
-	{"dbus", "1.12.10-1.fc28", "rpm", "source"},
-	{"grep", "3.1-5.fc28", "rpm", "binary"},
-	{"libusbx", "1.0.22-1.fc28", "rpm", "binary"},
-	{"audit", "2.8.4-2.fc28", "rpm", "source"},
-	{"sed", "4.5-1.fc28", "rpm", "binary"},
-	{"sqlite", "3.22.0-4.fc28", "rpm", "source"},
-	{"openldap", "2.4.46-3.fc28", "rpm", "binary"},
-	{"gawk", "4.2.1-1.fc28", "rpm", "binary"},
-	{"gpgme", "1.10.0-4.fc28", "rpm", "source"},
-	{"lvm2", "2.02.177-5.fc28", "rpm", "source"},
-	{"nspr", "4.19.0-1.fc28", "rpm", "source"},
-	{"libsolv", "0.6.35-1.fc28", "rpm", "source"},
-	{"info", "6.5-4.fc28", "rpm", "binary"},
-	{"openssl-libs", "1:1.1.0h-3.fc28", "rpm", "binary"},
-	{"libxcrypt", "4.1.2-1.fc28", "rpm", "binary"},
-	{"libselinux", "2.8-1.fc28", "rpm", "binary"},
-	{"libgcc", "8.1.1-5.fc28", "rpm", "binary"},
-	{"cracklib", "2.9.6-13.fc28", "rpm", "binary"},
-	{"python3-libs", "3.6.6-1.fc28", "rpm", "binary"},
-	{"glibc-langpack-en", "2.27-32.fc28", "rpm", "binary"},
-	{"json-c", "0.13.1-2.fc28", "rpm", "binary"},
-	{"gnupg2", "2.2.8-1.fc28", "rpm", "source"},
-	{"openssl", "1:1.1.0h-3.fc28", "rpm", "binary"},
-	{"glibc-common", "2.27-32.fc28", "rpm", "binary"},
-	{"p11-kit-trust", "0.23.12-1.fc28", "rpm", "binary"},
-	{"zstd", "1.3.5-1.fc28", "rpm", "source"},
-	{"libxml2", "2.9.8-4.fc28", "rpm", "source"},
-	{"dbus", "1:1.12.10-1.fc28", "rpm", "binary"},
-	{"ca-certificates", "2018.2.24-1.0.fc28", "rpm", "binary"},
-	{"libcomps", "0.1.8-11.fc28", "rpm", "binary"},
-	{"nss", "3.38.0-1.0.fc28", "rpm", "binary"},
-	{"libcom_err", "1.44.2-0.fc28", "rpm", "binary"},
-	{"keyutils-libs", "1.5.10-6.fc28", "rpm", "binary"},
-	{"libseccomp", "2.3.3-2.fc28", "rpm", "binary"},
-	{"elfutils-libs", "0.173-1.fc28", "rpm", "binary"},
-	{"libuuid", "2.32.1-1.fc28", "rpm", "binary"},
-	{"pkgconf", "1.4.2-1.fc28", "rpm", "source"},
-	{"grep", "3.1-5.fc28", "rpm", "source"},
-	{"libpcap", "1.9.0-1.fc28", "rpm", "source"},
-	{"deltarpm", "3.6-25.fc28", "rpm", "binary"},
-	{"krb5-libs", "1.16.1-13.fc28", "rpm", "binary"},
-	{"glibc", "2.27-32.fc28", "rpm", "binary"},
-	{"libseccomp", "2.3.3-2.fc28", "rpm", "source"},
-	{"libsemanage", "2.8-2.fc28", "rpm", "binary"},
-	{"openssl-pkcs11", "0.4.8-1.fc28", "rpm", "binary"},
-	{"libxml2", "2.9.8-4.fc28", "rpm", "binary"},
-	{"e2fsprogs", "1.44.2-0.fc28", "rpm", "source"},
-	{"file-libs", "5.33-7.fc28", "rpm", "binary"},
-	{"elfutils-default-yama-scope", "0.173-1.fc28", "rpm", "binary"},
-	{"glibc", "2.27-32.fc28", "rpm", "source"},
-	{"publicsuffix-list-dafsa", "20180514-1.fc28", "rpm", "binary"},
-	{"popt", "1.16-14.fc28", "rpm", "binary"},
-	{"libnsl2", "1.2.0-2.20180605git4a062cf.fc28", "rpm", "binary"},
-	{"lua-libs", "5.3.4-10.fc28", "rpm", "binary"},
-	{"libsemanage", "2.8-2.fc28", "rpm", "source"},
-	{"glibc-minimal-langpack", "2.27-32.fc28", "rpm", "binary"},
-	{"attr", "2.4.48-3.fc28", "rpm", "source"},
-	{"gdbm", "1.14.1-4.fc28", "rpm", "source"},
-	{"pkgconf", "1.4.2-1.fc28", "rpm", "binary"},
-	{"acl", "2.2.53-1.fc28", "rpm", "source"},
-	{"gnutls", "3.6.3-4.fc28", "rpm", "binary"},
-	{"fedora-repos", "28-5", "rpm", "source"},
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+	{"openssl-pkcs11", "0.4.8-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"libxml2", "2.9.8-4.fc28", "rpm", "binary", database.Namespace{}},
+	{"e2fsprogs", "1.44.2-0.fc28", "rpm", "source", database.Namespace{}},
+	{"file-libs", "5.33-7.fc28", "rpm", "binary", database.Namespace{}},
+	{"elfutils-default-yama-scope", "0.173-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"glibc", "2.27-32.fc28", "rpm", "source", database.Namespace{}},
+	{"publicsuffix-list-dafsa", "20180514-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"popt", "1.16-14.fc28", "rpm", "binary", database.Namespace{}},
+	{"libnsl2", "1.2.0-2.20180605git4a062cf.fc28", "rpm", "binary", database.Namespace{}},
+	{"lua-libs", "5.3.4-10.fc28", "rpm", "binary", database.Namespace{}},
+	{"libsemanage", "2.8-2.fc28", "rpm", "source", database.Namespace{}},
+	{"glibc-minimal-langpack", "2.27-32.fc28", "rpm", "binary", database.Namespace{}},
+	{"attr", "2.4.48-3.fc28", "rpm", "source", database.Namespace{}},
+	{"gdbm", "1.14.1-4.fc28", "rpm", "source", database.Namespace{}},
+	{"pkgconf", "1.4.2-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"acl", "2.2.53-1.fc28", "rpm", "source", database.Namespace{}},
+	{"gnutls", "3.6.3-4.fc28", "rpm", "binary", database.Namespace{}},
+	{"fedora-repos", "28-5", "rpm", "source", database.Namespace{}},
+	{"python3-pip", "9.0.3-2.fc28", "rpm", "binary", database.Namespace{}},
+	{"libnsl2", "1.2.0-2.20180605git4a062cf.fc28", "rpm", "source", database.Namespace{}},
+	{"rpm", "4.14.1-9.fc28", "rpm", "binary", database.Namespace{}},
+	{"libutempter", "1.1.6-14.fc28", "rpm", "source", database.Namespace{}},
+	{"libdnf", "0.11.1-3.fc28", "rpm", "source", database.Namespace{}},
+	{"vim-minimal", "2:8.1.328-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"tzdata", "2018e-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"nettle", "3.4-2.fc28", "rpm", "binary", database.Namespace{}},
+	{"python-pip", "9.0.3-2.fc28", "rpm", "source", database.Namespace{}},
+	{"python-six", "1.11.0-3.fc28", "rpm", "source", database.Namespace{}},
+	{"diffutils", "3.6-4.fc28", "rpm", "binary", database.Namespace{}},
+	{"rpm-plugin-selinux", "4.14.1-9.fc28", "rpm", "binary", database.Namespace{}},
+	{"shadow-utils", "2:4.6-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"pkgconf-pkg-config", "1.4.2-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"cracklib-dicts", "2.9.6-13.fc28", "rpm", "binary", database.Namespace{}},
+	{"libblkid", "2.32.1-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"python-setuptools", "39.2.0-6.fc28", "rpm", "source", database.Namespace{}},
+	{"libsss_idmap", "1.16.3-2.fc28", "rpm", "binary", database.Namespace{}},
+	{"libksba", "1.3.5-7.fc28", "rpm", "source", database.Namespace{}},
+	{"sssd-client", "1.16.3-2.fc28", "rpm", "binary", database.Namespace{}},
+	{"curl", "7.59.0-6.fc28", "rpm", "binary", database.Namespace{}},
+	{"pam", "1.3.1-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"libsigsegv", "2.11-5.fc28", "rpm", "binary", database.Namespace{}},
+	{"langpacks-en", "1.0-12.fc28", "rpm", "binary", database.Namespace{}},
+	{"nss-softokn-freebl", "3.38.0-1.0.fc28", "rpm", "binary", database.Namespace{}},
+	{"glib2", "2.56.1-4.fc28", "rpm", "binary", database.Namespace{}},
+	{"python3-gobject-base", "3.28.3-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"libffi", "3.1-16.fc28", "rpm", "source", database.Namespace{}},
+	{"libmodulemd", "1.6.2-2.fc28", "rpm", "source", database.Namespace{}},
+	{"openssl", "1.1.0h-3.fc28", "rpm", "source", database.Namespace{}},
+	{"libyaml", "0.1.7-5.fc28", "rpm", "source", database.Namespace{}},
+	{"pam", "1.3.1-1.fc28", "rpm", "source", database.Namespace{}},
+	{"iptables", "1.6.2-3.fc28", "rpm", "source", database.Namespace{}},
+	{"util-linux", "2.32.1-1.fc28", "rpm", "source", database.Namespace{}},
+	{"libsmartcols", "2.32.1-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"dnf", "2.7.5-12.fc28", "rpm", "binary", database.Namespace{}},
+	{"glib2", "2.56.1-4.fc28", "rpm", "source", database.Namespace{}},
+	{"lua", "5.3.4-10.fc28", "rpm", "source", database.Namespace{}},
+	{"nss-softokn", "3.38.0-1.0.fc28", "rpm", "source", database.Namespace{}},
+	{"python3-dnf", "2.7.5-12.fc28", "rpm", "binary", database.Namespace{}},
+	{"filesystem", "3.8-2.fc28", "rpm", "binary", database.Namespace{}},
+	{"libsss_nss_idmap", "1.16.3-2.fc28", "rpm", "binary", database.Namespace{}},
+	{"pcre2", "10.31-10.fc28", "rpm", "source", database.Namespace{}},
+	{"libyaml", "0.1.7-5.fc28", "rpm", "binary", database.Namespace{}},
+	{"python3-rpm", "4.14.1-9.fc28", "rpm", "binary", database.Namespace{}},
+	{"zlib", "1.2.11-8.fc28", "rpm", "source", database.Namespace{}},
+	{"libutempter", "1.1.6-14.fc28", "rpm", "binary", database.Namespace{}},
+	{"pcre2", "10.31-10.fc28", "rpm", "binary", database.Namespace{}},
+	{"libtirpc", "1.0.3-3.rc2.fc28", "rpm", "source", database.Namespace{}},
+	{"pkgconf-m4", "1.4.2-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"libreport", "2.9.5-1.fc28", "rpm", "source", database.Namespace{}},
+	{"vim", "8.1.328-1.fc28", "rpm", "source", database.Namespace{}},
+	{"file", "5.33-7.fc28", "rpm", "source", database.Namespace{}},
+	{"shadow-utils", "4.6-1.fc28", "rpm", "source", database.Namespace{}},
+	{"sqlite-libs", "3.22.0-4.fc28", "rpm", "binary", database.Namespace{}},
+	{"setup", "2.11.4-1.fc28", "rpm", "source", database.Namespace{}},
+	{"gcc", "8.1.1-5.fc28", "rpm", "source", database.Namespace{}},
+	{"mpfr", "3.1.6-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"device-mapper", "1.02.146-5.fc28", "rpm", "binary", database.Namespace{}},
+	{"p11-kit", "0.23.12-1.fc28", "rpm", "source", database.Namespace{}},
+	{"fedora-release", "28-2", "rpm", "binary", database.Namespace{}},
+	{"libnghttp2", "1.32.1-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"libcap-ng", "0.7.9-4.fc28", "rpm", "source", database.Namespace{}},
+	{"iptables-libs", "1.6.2-3.fc28", "rpm", "binary", database.Namespace{}},
+	{"audit-libs", "2.8.4-2.fc28", "rpm", "binary", database.Namespace{}},
+	{"libsigsegv", "2.11-5.fc28", "rpm", "source", database.Namespace{}},
+	{"rootfiles", "8.1-22.fc28", "rpm", "source", database.Namespace{}},
+	{"kmod-libs", "25-2.fc28", "rpm", "binary", database.Namespace{}},
+	{"lz4-libs", "1.8.1.2-4.fc28", "rpm", "binary", database.Namespace{}},
+	{"libassuan", "2.5.1-3.fc28", "rpm", "source", database.Namespace{}},
+	{"p11-kit", "0.23.12-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"nss-sysinit", "3.38.0-1.0.fc28", "rpm", "binary", database.Namespace{}},
+	{"libcap-ng", "0.7.9-4.fc28", "rpm", "binary", database.Namespace{}},
+	{"bash", "4.4.23-1.fc28", "rpm", "source", database.Namespace{}},
+	{"pygobject3", "3.28.3-1.fc28", "rpm", "source", database.Namespace{}},
+	{"dnf-yum", "2.7.5-12.fc28", "rpm", "binary", database.Namespace{}},
+	{"nss-softokn", "3.38.0-1.0.fc28", "rpm", "binary", database.Namespace{}},
+	{"expat", "2.2.5-3.fc28", "rpm", "binary", database.Namespace{}},
+	{"libassuan", "2.5.1-3.fc28", "rpm", "binary", database.Namespace{}},
+	{"libdb", "5.3.28-30.fc28", "rpm", "binary", database.Namespace{}},
+	{"tar", "2:1.30-3.fc28", "rpm", "binary", database.Namespace{}},
+	{"sed", "4.5-1.fc28", "rpm", "source", database.Namespace{}},
+	{"libmetalink", "0.1.3-6.fc28", "rpm", "binary", database.Namespace{}},
+	{"python-smartcols", "0.3.0-2.fc28", "rpm", "source", database.Namespace{}},
+	{"systemd", "238-9.git0e0aa59.fc28", "rpm", "source", database.Namespace{}},
+	{"python-iniparse", "0.4-30.fc28", "rpm", "source", database.Namespace{}},
+	{"libsepol", "2.8-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"libattr", "2.4.48-3.fc28", "rpm", "binary", database.Namespace{}},
+	{"python3-smartcols", "0.3.0-2.fc28", "rpm", "binary", database.Namespace{}},
+	{"libdb", "5.3.28-30.fc28", "rpm", "source", database.Namespace{}},
+	{"libmodulemd", "1.6.2-2.fc28", "rpm", "binary", database.Namespace{}},
+	{"python3-hawkey", "0.11.1-3.fc28", "rpm", "binary", database.Namespace{}},
+	{"dbus-libs", "1:1.12.10-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"chkconfig", "1.10-4.fc28", "rpm", "source", database.Namespace{}},
+	{"libargon2", "20161029-5.fc28", "rpm", "binary", database.Namespace{}},
+	{"openssl-pkcs11", "0.4.8-1.fc28", "rpm", "source", database.Namespace{}},
+	{"libusbx", "1.0.22-1.fc28", "rpm", "source", database.Namespace{}},
+	{"python3-setuptools", "39.2.0-6.fc28", "rpm", "binary", database.Namespace{}},
+	{"chkconfig", "1.10-4.fc28", "rpm", "binary", database.Namespace{}},
+	{"openldap", "2.4.46-3.fc28", "rpm", "source", database.Namespace{}},
+	{"bzip2", "1.0.6-26.fc28", "rpm", "source", database.Namespace{}},
+	{"npth", "1.5-4.fc28", "rpm", "source", database.Namespace{}},
+	{"libtirpc", "1.0.3-3.rc2.fc28", "rpm", "binary", database.Namespace{}},
+	{"util-linux", "2.32.1-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"nss", "3.38.0-1.0.fc28", "rpm", "source", database.Namespace{}},
+	{"elfutils", "0.173-1.fc28", "rpm", "source", database.Namespace{}},
+	{"libcomps", "0.1.8-11.fc28", "rpm", "source", database.Namespace{}},
+	{"libxcrypt", "4.1.2-1.fc28", "rpm", "source", database.Namespace{}},
+	{"gnupg2", "2.2.8-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"libdnf", "0.11.1-3.fc28", "rpm", "binary", database.Namespace{}},
+	{"cracklib", "2.9.6-13.fc28", "rpm", "source", database.Namespace{}},
+	{"libidn2", "2.0.5-1.fc28", "rpm", "source", database.Namespace{}},
+	{"bzip2-libs", "1.0.6-26.fc28", "rpm", "binary", database.Namespace{}},
+	{"json-c", "0.13.1-2.fc28", "rpm", "source", database.Namespace{}},
+	{"gdbm", "1:1.14.1-4.fc28", "rpm", "binary", database.Namespace{}},
+	{"pcre", "8.42-3.fc28", "rpm", "source", database.Namespace{}},
+	{"systemd", "238-9.git0e0aa59.fc28", "rpm", "binary", database.Namespace{}},
+	{"cryptsetup-libs", "2.0.4-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"dnf", "2.7.5-12.fc28", "rpm", "source", database.Namespace{}},
+	{"ca-certificates", "2018.2.24-1.0.fc28", "rpm", "source", database.Namespace{}},
+	{"libidn2", "2.0.5-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"libpsl", "0.20.2-2.fc28", "rpm", "binary", database.Namespace{}},
+	{"gdbm-libs", "1:1.14.1-4.fc28", "rpm", "binary", database.Namespace{}},
+	{"kmod", "25-2.fc28", "rpm", "source", database.Namespace{}},
+	{"libreport-filesystem", "2.9.5-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"ima-evm-utils", "1.1-2.fc28", "rpm", "source", database.Namespace{}},
+	{"nghttp2", "1.32.1-1.fc28", "rpm", "source", database.Namespace{}},
+	{"cyrus-sasl-lib", "2.1.27-0.2rc7.fc28", "rpm", "binary", database.Namespace{}},
+	{"libsolv", "0.6.35-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"cryptsetup", "2.0.4-1.fc28", "rpm", "source", database.Namespace{}},
+	{"filesystem", "3.8-2.fc28", "rpm", "source", database.Namespace{}},
+	{"libcap", "2.25-9.fc28", "rpm", "source", database.Namespace{}},
+	{"libpsl", "0.20.2-2.fc28", "rpm", "source", database.Namespace{}},
+	{"deltarpm", "3.6-25.fc28", "rpm", "source", database.Namespace{}},
+	{"fedora-gpg-keys", "28-5", "rpm", "binary", database.Namespace{}},
+	{"ima-evm-utils", "1.1-2.fc28", "rpm", "binary", database.Namespace{}},
+	{"nss-tools", "3.38.0-1.0.fc28", "rpm", "binary", database.Namespace{}},
+	{"libtasn1", "4.13-2.fc28", "rpm", "source", database.Namespace{}},
+	{"elfutils-libelf", "0.173-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"device-mapper-libs", "1.02.146-5.fc28", "rpm", "binary", database.Namespace{}},
+	{"gobject-introspection", "1.56.1-1.fc28", "rpm", "source", database.Namespace{}},
+	{"publicsuffix-list", "20180514-1.fc28", "rpm", "source", database.Namespace{}},
+	{"libcap", "2.25-9.fc28", "rpm", "binary", database.Namespace{}},
+	{"librepo", "1.8.1-7.fc28", "rpm", "binary", database.Namespace{}},
+	{"rpm-sign-libs", "4.14.1-9.fc28", "rpm", "binary", database.Namespace{}},
+	{"coreutils-single", "8.29-7.fc28", "rpm", "binary", database.Namespace{}},
+	{"libacl", "2.2.53-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"popt", "1.16-14.fc28", "rpm", "source", database.Namespace{}},
+	{"libtasn1", "4.13-2.fc28", "rpm", "binary", database.Namespace{}},
+	{"gawk", "4.2.1-1.fc28", "rpm", "source", database.Namespace{}},
+	{"diffutils", "3.6-4.fc28", "rpm", "source", database.Namespace{}},
+	{"libgpg-error", "1.31-1.fc28", "rpm", "source", database.Namespace{}},
+	{"libdb-utils", "5.3.28-30.fc28", "rpm", "binary", database.Namespace{}},
+	{"python3-iniparse", "0.4-30.fc28", "rpm", "binary", database.Namespace{}},
+	{"acl", "2.2.53-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"libssh", "0.8.2-1.fc28", "rpm", "source", database.Namespace{}},
+	{"python3-librepo", "1.8.1-7.fc28", "rpm", "binary", database.Namespace{}},
+	{"gobject-introspection", "1.56.1-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"rpm", "4.14.1-9.fc28", "rpm", "source", database.Namespace{}},
+	{"libgcrypt", "1.8.3-1.fc28", "rpm", "source", database.Namespace{}},
+	{"curl", "7.59.0-6.fc28", "rpm", "source", database.Namespace{}},
+	{"tzdata", "2018e-1.fc28", "rpm", "source", database.Namespace{}},
+	{"krb5", "1.16.1-13.fc28", "rpm", "source", database.Namespace{}},
+	{"librepo", "1.8.1-7.fc28", "rpm", "source", database.Namespace{}},
+	{"python3-gpg", "1.10.0-4.fc28", "rpm", "binary", database.Namespace{}},
+	{"nettle", "3.4-2.fc28", "rpm", "source", database.Namespace{}},
+	{"libgcrypt", "1.8.3-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"python3", "3.6.6-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"python3-libcomps", "0.1.8-11.fc28", "rpm", "binary", database.Namespace{}},
+	{"rpm-libs", "4.14.1-9.fc28", "rpm", "binary", database.Namespace{}},
+	{"nspr", "4.19.0-1.fc28", "rpm", "binary", database.Namespace{}},
+	{"argon2", "20161029-5.fc28", "rpm", "source", database.Namespace{}},
+	{"tar", "1.30-3.fc28", "rpm", "source", database.Namespace{}},
+	{"qrencode-libs", "3.4.4-5.fc28", "rpm", "binary", database.Namespace{}},
+	{"gmp", "6.1.2-7.fc28", "rpm", "source", database.Namespace{}},
+	{"libverto", "0.3.0-5.fc28", "rpm", "binary", database.Namespace{}},
+	{"python3", "3.6.6-1.fc28", "rpm", "source", database.Namespace{}},
+	{"libksba", "1.3.5-7.fc28", "rpm", "binary", database.Namespace{}},
+	{"readline", "7.0-11.fc28", "rpm", "binary", database.Namespace{}},
+	{"rpm-build-libs", "4.14.1-9.fc28", "rpm", "binary", database.Namespace{}},
+	{"npth", "1.5-4.fc28", "rpm", "binary", database.Namespace{}},
+	{"rootfiles", "8.1-22.fc28", "rpm", "binary", database.Namespace{}},
+	{"rpm-plugin-systemd-inhibit", "4.14.1-9.fc28", "rpm", "binary", database.Namespace{}},
+	{"systemd-libs", "238-9.git0e0aa59.fc28", "rpm", "binary", database.Namespace{}},
+	{"nss-util", "3.38.0-1.0.fc28", "rpm", "binary", database.Namespace{}},
 }
 
 func TestRpmFeatureDetection(t *testing.T) {
@@ -334,10 +334,10 @@ func TestRpmFeatureDetection(t *testing.T) {
 			"valid small case",
 			map[string]string{"var/lib/rpm/Packages": "rpm/testdata/valid"},
 			[]database.Feature{
-				{"centos-release", "7-1.1503.el7.centos.2.8", "rpm", "binary"},
-				{"filesystem", "3.2-18.el7", "rpm", "binary"},
-				{"centos-release", "7-1.1503.el7.centos.2.8", "rpm", "source"},
-				{"filesystem", "3.2-18.el7", "rpm", "source"},
+				{"centos-release", "7-1.1503.el7.centos.2.8", "rpm", "binary", database.Namespace{}},
+				{"filesystem", "3.2-18.el7", "rpm", "binary", database.Namespace{}},
+				{"centos-release", "7-1.1503.el7.centos.2.8", "rpm", "source", database.Namespace{}},
+				{"filesystem", "3.2-18.el7", "rpm", "source", database.Namespace{}},
 			},
 		},
 		{