diff --git a/example/25-MetadataTools.jl b/example/25-MetadataTools.jl
new file mode 100644
index 00000000..48f7b22d
--- /dev/null
+++ b/example/25-MetadataTools.jl
@@ -0,0 +1,21 @@
+using MetadataTools, Query, DataFrames
+
+pkg = values(get_all_pkg())
+
+# This query creates a list of packages on which at least one other
+# package depends, and orders that list by the number of packages that
+# depend on a given package.
+
+q = @from i in pkg begin
+    @where length(i.versions)>0
+    @let j = last(i.versions)
+    @from k in j.requires
+    @group k by String(k.package) into g
+    @where g.key!="julia"
+    @let num_deps = length(g)
+    @orderby descending(num_deps)
+    @select {Name=g.key, Num_Deps=num_deps}
+    @collect DataFrame
+end
+
+println(q)
diff --git a/test/REQUIRE b/test/REQUIRE
index 831c673a..cad0ca65 100644
--- a/test/REQUIRE
+++ b/test/REQUIRE
@@ -9,3 +9,4 @@ JSON
 Feather
 NullableArrays
 IndexedTables
+MetadataTools
diff --git a/test/runtests.jl b/test/runtests.jl
index bbfafc2b..b26f88df 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -615,7 +615,8 @@ end
         "../example/21-nulls.jl",
         "../example/22-datastreams-sink.jl",
         "../example/23-dict-sink.jl",
-        "../example/24-DataTable.jl"]
+        "../example/24-DataTable.jl",
+        "../example/25-MetadataTools.jl"]
 
     color = Base.have_color ? "--color=yes" : "--color=no"
     compilecache = "--compilecache=" * (Bool(Base.JLOptions().use_compilecache) ? "yes" : "no")