From caa03079dccf9dbd752c926998f2378bc099b9fb Mon Sep 17 00:00:00 2001
From: Ed Costello <epc@10gen.com>
Date: Fri, 12 Apr 2013 12:32:51 -0400
Subject: [PATCH] DOCS-1387 add unique option to shardCollection command

---
 source/reference/command/shardCollection.txt | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/source/reference/command/shardCollection.txt b/source/reference/command/shardCollection.txt
index a55a0fee8c7..121388bd9d3 100644
--- a/source/reference/command/shardCollection.txt
+++ b/source/reference/command/shardCollection.txt
@@ -38,6 +38,12 @@ shardCollection
          use the specified field as a :ref:`hashed shard key
          <sharding-hashed-shard-key-internals>` .
 
+   :param boolean unique:
+
+      When true, the ``unique`` option ensures that the underlying
+      index enforces a unique constraint. :term:`Hashed shard keys
+      <hashed shard key>` do not support unique constraints.
+
    :param integer numInitialChunks:
 
       .. versionadded:: 2.4