1 files changed, 32 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/servers/sql/postgresql/topn/default.nix b/nixpkgs/pkgs/servers/sql/postgresql/topn/default.nix
new file mode 100644
index 000000000000..dae30aadabd0
--- /dev/null
+++ b/nixpkgs/pkgs/servers/sql/postgresql/topn/default.nix
@@ -0,0 +1,32 @@
+{ stdenv, fetchFromGitHub, postgresql, protobufc }:
+
+stdenv.mkDerivation rec {
+  name = "pg_topn-${version}";
+  version = "2.2.0";
+
+  nativeBuildInputs = [ protobufc ];
+  buildInputs = [ postgresql ];
+
+  src = fetchFromGitHub {
+    owner  = "citusdata";
+    repo   = "postgresql-topn";
+    rev    = "refs/tags/v${version}";
+    sha256 = "1i5fn517mdvzfhlcj7fh4z0iniynanshcn7kzhsq19sgci0g31fr";
+  };
+
+  installPhase = ''
+    mkdir -p $out/{lib,share/extension}
+
+    cp *.so      $out/lib
+    cp *.sql     $out/share/extension
+    cp *.control $out/share/extension
+  '';
+
+  meta = with stdenv.lib; {
+    description = "Efficient querying of 'top values' for PostgreSQL";
+    homepage    = https://www.citusdata.com/;
+    maintainers = with maintainers; [ thoughtpolice ];
+    platforms   = platforms.linux;
+    license     = licenses.agpl3;
+  };
+}