From 28ca0add971c6dff89039bb2c6f315677f50cb03 Mon Sep 17 00:00:00 2001
From: Justin Kramer <jkkramer@gmail.com>
Date: Mon, 3 Dec 2012 12:39:06 -0500
Subject: [PATCH] count-distinct fn handler

---
 src/honeysql/format.clj | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/honeysql/format.clj b/src/honeysql/format.clj
index 04b4eb3..250089f 100644
--- a/src/honeysql/format.clj
+++ b/src/honeysql/format.clj
@@ -60,6 +60,9 @@
       (paren-wrap (string/join (str " " op-upper " ") args))
       (str op-upper (paren-wrap (comma-join args))))))
 
+(defmethod fn-handler "count-distinct" [_ & args]
+  (str "COUNT(DISTINCT " (comma-join (map to-sql args)) ")"))
+
 (defmethod fn-handler "=" [_ a b & more]
   (if (seq more)
     (apply expand-binary-ops "=" a b more)