From cf213e5b341b58dd4186898b99a3a719fd378336 Mon Sep 17 00:00:00 2001
From: mkmoisen <mkmoisen@gmail.com>
Date: Wed, 27 Apr 2016 21:27:28 -0700
Subject: [PATCH] Modify cursor.fetchmany() to break after no results

Currently, if you call `cur.fetchmany(1000)` while there is only 1 row left to fetch, the loop will call `self.fetchone()` 1000 times and will return an array of size 1000, where 999 values are None.

This file change breaks out of the loop if `self.fetchone()` returns None to prevent this behavior, exactly what `fetchall()` does.
---
 pyhs2/cursor.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/pyhs2/cursor.py b/pyhs2/cursor.py
index 32dc76a..053129d 100644
--- a/pyhs2/cursor.py
+++ b/pyhs2/cursor.py
@@ -153,7 +153,10 @@ def fetchmany(self,size=-1):
            size = self.arraysize
         recs = []
         for i in range(0,size):
-            recs.append(self.fetchone())
+            rec = self.fetchone()
+            if rec is None:
+                break
+            recs.append(rec)
 
         self._cursorLock.release()
         return recs