diff --git a/src/main/java/com/alibaba/druid/sql/dialect/mysql/visitor/MySqlSchemaStatVisitor.java b/src/main/java/com/alibaba/druid/sql/dialect/mysql/visitor/MySqlSchemaStatVisitor.java
index 510c6d638b..3c782b0e97 100644
--- a/src/main/java/com/alibaba/druid/sql/dialect/mysql/visitor/MySqlSchemaStatVisitor.java
+++ b/src/main/java/com/alibaba/druid/sql/dialect/mysql/visitor/MySqlSchemaStatVisitor.java
@@ -20,6 +20,9 @@ import com.alibaba.druid.sql.ast.statement.SQLSubqueryTableSource;
 import com.alibaba.druid.sql.ast.statement.SQLUpdateStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlDeleteStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlInsertStatement;
+import com.alibaba.druid.stat.TableStat;
+import com.alibaba.druid.stat.TableStat.Column;
+import com.alibaba.druid.stat.TableStat.Mode;
 
 public class MySqlSchemaStatVisitor extends MySqlASTVisitorAdapter {
 
@@ -52,16 +55,16 @@ public class MySqlSchemaStatVisitor extends MySqlASTVisitorAdapter {
             Mode mode = modeLocal.get();
             switch (mode) {
                 case Delete:
-                    stat.deleteCount++;
+                    stat.incrementDeleteCount();
                     break;
                 case Insert:
-                    stat.insertCount++;
+                    stat.incrementInsertCount();
                     break;
                 case Update:
-                    stat.updateCount++;
+                    stat.incrementUpdateCount();
                     break;
                 case Select:
-                    stat.selectCount++;
+                    stat.incrementSelectCount();
                     break;
                 default:
                     break;
@@ -97,7 +100,7 @@ public class MySqlSchemaStatVisitor extends MySqlASTVisitorAdapter {
             stat = new TableStat();
             tableStats.put(ident, stat);
         }
-        stat.updateCount++;
+        stat.incrementUpdateCount();
 
         Map<String, String> aliasMap = aliasLocal.get();
         aliasMap.put(ident, ident);
@@ -132,7 +135,7 @@ public class MySqlSchemaStatVisitor extends MySqlASTVisitorAdapter {
                 stat = new TableStat();
                 tableStats.put(ident, stat);
             }
-            stat.deleteCount++;
+            stat.incrementDeleteCount();
         }
 
         accept(x.getWhere());
@@ -182,7 +185,7 @@ public class MySqlSchemaStatVisitor extends MySqlASTVisitorAdapter {
                 stat = new TableStat();
                 tableStats.put(ident, stat);
             }
-            stat.insertCount++;
+            stat.incrementInsertCount();
 
             Map<String, String> aliasMap = aliasLocal.get();
             if (aliasMap != null) {
@@ -220,7 +223,7 @@ public class MySqlSchemaStatVisitor extends MySqlASTVisitorAdapter {
                 stat = new TableStat();
                 tableStats.put(ident, stat);
             }
-            stat.insertCount++;
+            stat.incrementInsertCount();
 
             Map<String, String> aliasMap = aliasLocal.get();
             if (aliasMap != null) {
@@ -323,143 +326,5 @@ public class MySqlSchemaStatVisitor extends MySqlASTVisitorAdapter {
         return fields;
     }
 
-    public static class Column {
-
-        private String table;
-        private String name;
-
-        public Column(){
-
-        }
-
-        public Column(String table, String name){
-            this.table = table;
-            this.name = name;
-        }
-
-        public String getTable() {
-            return table;
-        }
-
-        public void setTable(String table) {
-            this.table = table;
-        }
-
-        public String getName() {
-            return name;
-        }
-
-        public void setName(String name) {
-            this.name = name;
-        }
-
-        public int hashCode() {
-            int tableHashCode = table != null ? table.toLowerCase().hashCode() : 0;
-            int nameHashCode = name != null ? name.toLowerCase().hashCode() : 0;
-
-            return tableHashCode + nameHashCode;
-        }
-
-        public String toString() {
-            if (table != null) {
-                return table + "." + name;
-            }
-
-            return name;
-        }
-
-        public boolean equals(Object obj) {
-            Column column = (Column) obj;
-
-            if (table == null) {
-                if (column.getTable() != null) {
-                    return false;
-                }
-            } else {
-                if (!table.equalsIgnoreCase(column.getTable())) {
-                    return false;
-                }
-            }
-
-            if (name == null) {
-                if (column.getName() != null) {
-                    return false;
-                }
-            } else {
-                if (!name.equalsIgnoreCase(column.getName())) {
-                    return false;
-                }
-            }
-
-            return true;
-        }
-    }
-
-    public static enum Mode {
-        Insert(1), Update(2), Delete(4), Select(8);
-
-        public final int mark;
-
-        private Mode(int mark){
-            this.mark = mark;
-        }
-    }
-
-    public static class TableStat {
-
-        private int selectCount = 0;
-        private int updateCount = 0;
-        private int deleteCount = 0;
-        private int insertCount = 0;
-
-        public int getSelectCount() {
-            return selectCount;
-        }
-
-        public void setSelectCount(int selectCount) {
-            this.selectCount = selectCount;
-        }
-
-        public int getUpdateCount() {
-            return updateCount;
-        }
-
-        public void setUpdateCount(int updateCount) {
-            this.updateCount = updateCount;
-        }
-
-        public int getDeleteCount() {
-            return deleteCount;
-        }
-
-        public void setDeleteCount(int deleteCount) {
-            this.deleteCount = deleteCount;
-        }
-
-        public int getInsertCount() {
-            return insertCount;
-        }
-
-        public void setInsertCount(int insertCount) {
-            this.insertCount = insertCount;
-        }
-
-        public String toString() {
-            StringBuilder buf = new StringBuilder(4);
-            if (insertCount > 0) {
-                buf.append("C");
-            }
-            if (updateCount > 0) {
-                buf.append("U");
-            }
-            if (selectCount > 0) {
-                buf.append("R");
-            }
-            if (deleteCount > 0) {
-                buf.append("D");
-            }
-
-            return buf.toString();
-        }
-    }
+   
 }
diff --git a/src/main/java/com/alibaba/druid/stat/TableStat.java b/src/main/java/com/alibaba/druid/stat/TableStat.java
new file mode 100644
index 0000000000..78740ffb2e
--- /dev/null
+++ b/src/main/java/com/alibaba/druid/stat/TableStat.java
@@ -0,0 +1,158 @@
+package com.alibaba.druid.stat;
+
+public class TableStat {
+
+    int selectCount = 0;
+    int updateCount = 0;
+    int deleteCount = 0;
+    int insertCount = 0;
+
+    public int getSelectCount() {
+        return selectCount;
+    }
+
+    public void incrementSelectCount() {
+        selectCount++;
+    }
+
+    public void setSelectCount(int selectCount) {
+        this.selectCount = selectCount;
+    }
+
+    public int getUpdateCount() {
+        return updateCount;
+    }
+    
+
+    public void incrementUpdateCount() {
+        updateCount++;
+    }
+
+    public void setUpdateCount(int updateCount) {
+        this.updateCount = updateCount;
+    }
+
+    public int getDeleteCount() {
+        return deleteCount;
+    }
+    
+    public void incrementDeleteCount() {
+        this.deleteCount++;
+    }
+
+    public void setDeleteCount(int deleteCount) {
+        this.deleteCount = deleteCount;
+    }
+    
+    public void incrementInsertCount() {
+        this.insertCount++;
+    }
+
+    public int getInsertCount() {
+        return insertCount;
+    }
+
+    public void setInsertCount(int insertCount) {
+        this.insertCount = insertCount;
+    }
+
+    public String toString() {
+        StringBuilder buf = new StringBuilder(4);
+        if (insertCount > 0) {
+            buf.append("C");
+        }
+        if (updateCount > 0) {
+            buf.append("U");
+        }
+        if (selectCount > 0) {
+            buf.append("R");
+        }
+        if (deleteCount > 0) {
+            buf.append("D");
+        }
+
+        return buf.toString();
+    }
+
+    public static class Column {
+
+        private String table;
+        private String name;
+
+        public Column(){
+
+        }
+
+        public Column(String table, String name){
+            this.table = table;
+            this.name = name;
+        }
+
+        public String getTable() {
+            return table;
+        }
+
+        public void setTable(String table) {
+            this.table = table;
+        }
+
+        public String getName() {
+            return name;
+        }
+
+        public void setName(String name) {
+            this.name = name;
+        }
+
+        public int hashCode() {
+            int tableHashCode = table != null ? table.toLowerCase().hashCode() : 0;
+            int nameHashCode = name != null ? name.toLowerCase().hashCode() : 0;
+
+            return tableHashCode + nameHashCode;
+        }
+
+        public String toString() {
+            if (table != null) {
+                return table + "." + name;
+            }
+
+            return name;
+        }
+
+        public boolean equals(Object obj) {
+            Column column = (Column) obj;
+
+            if (table == null) {
+                if (column.getTable() != null) {
+                    return false;
+                }
+            } else {
+                if (!table.equalsIgnoreCase(column.getTable())) {
+                    return false;
+                }
+            }
+
+            if (name == null) {
+                if (column.getName() != null) {
+                    return false;
+                }
+            } else {
+                if (!name.equalsIgnoreCase(column.getName())) {
+                    return false;
+                }
+            }
+
+            return true;
+        }
+    }
+
+    public static enum Mode {
+        Insert(1), Update(2), Delete(4), Select(8);
+
+        public final int mark;
+
+        private Mode(int mark){
+            this.mark = mark;
+        }
+    }
+}
diff --git a/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest1.java b/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest1.java
index 262fe00dbd..d28488d598 100644
--- a/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest1.java
+++ b/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest1.java
@@ -8,7 +8,7 @@ import junit.framework.TestCase;
 import com.alibaba.druid.sql.ast.SQLStatement;
 import com.alibaba.druid.sql.dialect.mysql.parser.MySqlStatementParser;
 import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor;
-import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor.Column;
+import com.alibaba.druid.stat.TableStat.Column;
 
 public class MySqlSchemaStatVisitorTest1 extends TestCase {
 
diff --git a/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest2.java b/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest2.java
index 719443dddc..0056b1f0f8 100644
--- a/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest2.java
+++ b/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest2.java
@@ -8,7 +8,7 @@ import junit.framework.TestCase;
 import com.alibaba.druid.sql.ast.SQLStatement;
 import com.alibaba.druid.sql.dialect.mysql.parser.MySqlStatementParser;
 import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor;
-import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor.Column;
+import com.alibaba.druid.stat.TableStat.Column;
 
 public class MySqlSchemaStatVisitorTest2 extends TestCase {
 
diff --git a/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest3.java b/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest3.java
index bf7ef82ee0..19e321d3f3 100644
--- a/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest3.java
+++ b/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest3.java
@@ -8,7 +8,7 @@ import junit.framework.TestCase;
 import com.alibaba.druid.sql.ast.SQLStatement;
 import com.alibaba.druid.sql.dialect.mysql.parser.MySqlStatementParser;
 import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor;
-import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor.Column;
+import com.alibaba.druid.stat.TableStat.Column;
 
 public class MySqlSchemaStatVisitorTest3 extends TestCase {
 
diff --git a/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest4.java b/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest4.java
index a88a3c5a38..1024fb1f67 100644
--- a/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest4.java
+++ b/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest4.java
@@ -8,7 +8,7 @@ import junit.framework.TestCase;
 import com.alibaba.druid.sql.ast.SQLStatement;
 import com.alibaba.druid.sql.dialect.mysql.parser.MySqlStatementParser;
 import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor;
-import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor.Column;
+import com.alibaba.druid.stat.TableStat.Column;
 
 public class MySqlSchemaStatVisitorTest4 extends TestCase {
 
diff --git a/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest_Delete.java b/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest_Delete.java
index 8696d45bb8..94ca569304 100644
--- a/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest_Delete.java
+++ b/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest_Delete.java
@@ -8,7 +8,7 @@ import junit.framework.TestCase;
 import com.alibaba.druid.sql.ast.SQLStatement;
 import com.alibaba.druid.sql.dialect.mysql.parser.MySqlStatementParser;
 import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor;
-import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor.Column;
+import com.alibaba.druid.stat.TableStat.Column;
 
 public class MySqlSchemaStatVisitorTest_Delete extends TestCase {
 
diff --git a/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest_Subquery.java b/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest_Subquery.java
index 773f66674a..c0ea8852de 100644
--- a/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest_Subquery.java
+++ b/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest_Subquery.java
@@ -8,7 +8,7 @@ import junit.framework.TestCase;
 import com.alibaba.druid.sql.ast.SQLStatement;
 import com.alibaba.druid.sql.dialect.mysql.parser.MySqlStatementParser;
 import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor;
-import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor.Column;
+import com.alibaba.druid.stat.TableStat.Column;
 
 public class MySqlSchemaStatVisitorTest_Subquery extends TestCase {
 
diff --git a/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest_Subquery2.java b/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest_Subquery2.java
index de765b397d..23ab56fc67 100644
--- a/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest_Subquery2.java
+++ b/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest_Subquery2.java
@@ -8,7 +8,7 @@ import junit.framework.TestCase;
 import com.alibaba.druid.sql.ast.SQLStatement;
 import com.alibaba.druid.sql.dialect.mysql.parser.MySqlStatementParser;
 import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor;
-import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor.Column;
+import com.alibaba.druid.stat.TableStat.Column;
 
 public class MySqlSchemaStatVisitorTest_Subquery2 extends TestCase {
 
diff --git a/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest_Update.java b/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest_Update.java
index 890cf3029e..53d6737cf3 100644
--- a/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest_Update.java
+++ b/src/test/java/com/alibaba/druid/sql/mysql/bvt/visitor/MySqlSchemaStatVisitorTest_Update.java
@@ -8,7 +8,7 @@ import junit.framework.TestCase;
 import com.alibaba.druid.sql.ast.SQLStatement;
 import com.alibaba.druid.sql.dialect.mysql.parser.MySqlStatementParser;
 import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor;
-import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor.Column;
+import com.alibaba.druid.stat.TableStat.Column;
 
 public class MySqlSchemaStatVisitorTest_Update extends TestCase {