gnu: Add python-pgspecial.

* gnu/packages/databases.scm (python-pgspecial): New variable.

Signed-off-by: Nicolas Goaziou <mail@nicolasgoaziou.fr>

gnu/packages/databases.scm

@@ -54,6 +54,7 @@
 ;;; Copyright © 2021 Alexandre Hannud Abdo <abdo@member.fsf.org>
 ;;; Copyright © 2021 Simon Tournier <zimon.toutoune@gmail.com>
 ;;; Copyright © 2021 jgart <jgart@dismail.de>
+;;; Copyright © 2021 Foo Chuan Wei <chuanwei.foo@hotmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -654,6 +655,27 @@ (define-public litecli
 auto-completion and syntax highlighting.")
   (license license:bsd-3)))
 
+(define-public python-pgspecial
+  (package
+    (name "python-pgspecial")
+    (version "1.13.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "pgspecial" version))
+       (sha256
+        (base32 "00ddkf565rjcxmfml1z4mmkns1aq8x5s5g85xmnz2scln42y4irq"))))
+    (build-system python-build-system)
+    (propagated-inputs
+     (list python-click python-sqlparse python-psycopg2))
+    (home-page "https://github.com/dbcli/pgspecial")
+    (synopsis
+     "Python implementation of PostgreSQL meta commands (backslash commands)")
+    (description
+     "This Python package provides an API to execute meta-commands (AKA
+\"special\", or \"backslash commands\") on PostgreSQL.")
+    (license license:bsd-3)))
+
 (define-public mycli
   (package
     (name "mycli")