From 2a56d7e2949265e520675856d5b1174998b19c38 Mon Sep 17 00:00:00 2001
From: wenshao <szujobs@hotmail.com>
Date: Fri, 10 May 2013 11:07:29 +0800
Subject: [PATCH] improve support tddl

---
 .../MySqlParameterizedOutputVisitor.java      | 17 ++++
 .../filter/MergeStatFilterTest_tddl_1.java    | 78 +++++++++++++++++++
 2 files changed, 95 insertions(+)
 create mode 100644 src/test/java/com/alibaba/druid/bvt/proxy/filter/MergeStatFilterTest_tddl_1.java

diff --git a/src/main/java/com/alibaba/druid/sql/dialect/mysql/visitor/MySqlParameterizedOutputVisitor.java b/src/main/java/com/alibaba/druid/sql/dialect/mysql/visitor/MySqlParameterizedOutputVisitor.java
index cd7316d2e0..1b2bbafcde 100644
--- a/src/main/java/com/alibaba/druid/sql/dialect/mysql/visitor/MySqlParameterizedOutputVisitor.java
+++ b/src/main/java/com/alibaba/druid/sql/dialect/mysql/visitor/MySqlParameterizedOutputVisitor.java
@@ -61,6 +61,23 @@ public class MySqlParameterizedOutputVisitor extends MySqlOutputVisitor {
                     return false;
                 }
             }
+            
+            int numberCount = 0;
+            for (int i = name.length() - 1; i >= 0; --i) {
+                char ch = name.charAt(i);
+                if (ch < '0' || ch > '9') {
+                    break;
+                } else {
+                    numberCount++;
+                }
+            }
+            
+            if (numberCount > 1) {
+                int numPos = name.length() - numberCount;
+                String realName = name.substring(0, numPos);
+                print(realName);
+                return false;
+            }
         }
         print(name);
         return false;
diff --git a/src/test/java/com/alibaba/druid/bvt/proxy/filter/MergeStatFilterTest_tddl_1.java b/src/test/java/com/alibaba/druid/bvt/proxy/filter/MergeStatFilterTest_tddl_1.java
new file mode 100644
index 0000000000..2e598dd871
--- /dev/null
+++ b/src/test/java/com/alibaba/druid/bvt/proxy/filter/MergeStatFilterTest_tddl_1.java
@@ -0,0 +1,78 @@
+/*
+ * Copyright 1999-2011 Alibaba Group Holding Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.druid.bvt.proxy.filter;
+
+import java.sql.Connection;
+import java.sql.Statement;
+import java.util.Set;
+
+import javax.management.openmbean.TabularData;
+
+import junit.framework.TestCase;
+
+import org.junit.Assert;
+
+import com.alibaba.druid.pool.DruidDataSource;
+import com.alibaba.druid.stat.DruidDataSourceStatManager;
+import com.alibaba.druid.stat.JdbcStatManager;
+import com.alibaba.druid.support.json.JSONUtils;
+import com.alibaba.druid.util.JdbcUtils;
+
+public class MergeStatFilterTest_tddl_1 extends TestCase {
+
+    private DruidDataSource dataSource;
+
+    protected void setUp() throws Exception {
+        TabularData sqlList = JdbcStatManager.getInstance().getSqlList();
+        if (sqlList.size() > 0) {
+            for (Object item : JdbcStatManager.getInstance().getSqlList().values()) {
+                String text = JSONUtils.toJSONString(item);
+                System.out.println(text);
+            }
+        }
+        
+        Assert.assertEquals(0, JdbcStatManager.getInstance().getSqlList().size());
+
+        dataSource = new DruidDataSource();
+        dataSource.setUrl("jdbc:mock:xx");
+        dataSource.setFilters("mergeStat");
+        dataSource.setDbType("mysql");
+    }
+
+    protected void tearDown() throws Exception {
+        JdbcUtils.close(dataSource);
+
+        Assert.assertEquals(0, JdbcStatManager.getInstance().getSqlList().size());
+    }
+
+    public void test_merge() throws Exception {
+        for (int i = 1000; i < 2000; ++i) {
+            String tableName = "t" + i;
+            String sql = "select * from " + tableName + " where " + tableName + ".id = " + i;
+            Connection conn = dataSource.getConnection();
+
+            Statement stmt = conn.createStatement();
+            stmt.execute(sql);
+            stmt.close();
+
+            conn.close();
+        }
+
+        Assert.assertEquals(1, dataSource.getDataSourceStat().getSqlStatMap().size());
+
+    }
+
+}