From 774533e1dff7dcfd3a59f244194e4200f8e8a88a Mon Sep 17 00:00:00 2001
From: Steven Fackler <sfackler@gmail.com>
Date: Fri, 7 Feb 2014 18:07:25 -0800
Subject: [PATCH] Add a size_hint to result iterator

---
 src/lib.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/lib.rs b/src/lib.rs
index 918e3984..082a4724 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1198,6 +1198,16 @@ impl<'stmt> Iterator<PostgresRow<'stmt>> for PostgresResult<'stmt> {
             }
         })
     }
+
+    fn size_hint(&self) -> (uint, Option<uint>) {
+        let lower = self.data.len();
+        let upper = if self.more_rows {
+            None
+         } else {
+            Some(lower)
+         };
+         (lower, upper)
+    }
 }
 
 /// A single result row of a query.