From 1a34f0231450cb477d9944b2452af3b9d62c86a8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=B8=A9=E5=B0=91?= <szujobs@hotmail.com>
Date: Wed, 18 Apr 2012 18:15:28 +0800
Subject: [PATCH] bug fixed for updateCount

---
 src/main/java/com/alibaba/druid/stat/JdbcSqlStat.java | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/main/java/com/alibaba/druid/stat/JdbcSqlStat.java b/src/main/java/com/alibaba/druid/stat/JdbcSqlStat.java
index 9905cee1e2..dbcdea4b26 100644
--- a/src/main/java/com/alibaba/druid/stat/JdbcSqlStat.java
+++ b/src/main/java/com/alibaba/druid/stat/JdbcSqlStat.java
@@ -230,7 +230,10 @@ public final class JdbcSqlStat implements JdbcSqlStatMBean {
     }
 
     public void addUpdateCount(int delta) {
-        this.updateCount.addAndGet(delta);
+        if (delta > 0) {
+            this.updateCount.addAndGet(delta);
+        }
+        
         this.updateCountHistogram.recode(delta);
         this.fetchRowCountHistogram.recode(0);