1 files changed, 30 insertions, 0 deletions
diff --git a/pkgs/servers/sql/postgresql/ext/periods.nix b/pkgs/servers/sql/postgresql/ext/periods.nix
new file mode 100644
index 00000000000..cf859a4bde0
--- /dev/null
+++ b/pkgs/servers/sql/postgresql/ext/periods.nix
@@ -0,0 +1,30 @@
+{ stdenv, fetchFromGitHub, postgresql }:
+
+stdenv.mkDerivation rec {
+  pname = "periods";
+  version = "1.1";
+
+  src = fetchFromGitHub {
+    owner = "xocolatl";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "0gdnlbh7kp7c0kvsrri2kxdbmm2qgib1qqpl37203z6c3fk45kfh";
+  };
+
+  buildInputs = [ postgresql ];
+
+  installPhase = ''
+    install -D -t $out/lib *.so
+    install -D -t $out/share/postgresql/extension *.sql
+    install -D -t $out/share/postgresql/extension *.control
+  '';
+
+  meta = with stdenv.lib; {
+    description = "PostgreSQL extension implementing SQL standard functionality for PERIODs and SYSTEM VERSIONING";
+    homepage = "https://github.com/xocolatl/periods";
+    maintainers = with maintainers; [ ivan ];
+    platforms = postgresql.meta.platforms;
+    license = licenses.postgresql;
+    broken = versionOlder postgresql.version "9.5";
+  };
+}