From 04b54f03a51f9c102ea07e612268aae86160ef10 Mon Sep 17 00:00:00 2001
From: Karl Seguin <karl@openmymind.io>
Date: Sun, 16 Nov 2014 12:43:47 +0700
Subject: [PATCH] Use LastIndex instead of Split for better performance getting
 the number of rows affected from CommandTag

---
 conn.go | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/conn.go b/conn.go
index c0aa36a4..acfb1d16 100644
--- a/conn.go
+++ b/conn.go
@@ -74,8 +74,12 @@ type CommandTag string
 // RowsAffected returns the number of rows affected. If the CommandTag was not
 // for a row affecting command (such as "CREATE TABLE") then it returns 0
 func (ct CommandTag) RowsAffected() int64 {
-	words := strings.Split(string(ct), " ")
-	n, _ := strconv.ParseInt(words[len(words)-1], 10, 64)
+	s := string(ct)
+	index := strings.LastIndex(s, " ")
+	if index == -1 {
+		return 0
+	}
+	n, _ := strconv.ParseInt(s[index+1:], 10, 64)
 	return n
 }