bug fixed for issue #1266

src/test/java/com/alibaba/druid/bvt/sql/mysql/MySqlAlterTableTest25.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright 1999-2101 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.sql.mysql;
+
+import junit.framework.TestCase;
+
+import org.junit.Assert;
+
+import com.alibaba.druid.sql.SQLUtils;
+import com.alibaba.druid.sql.ast.SQLStatement;
+import com.alibaba.druid.sql.dialect.mysql.parser.MySqlStatementParser;
+import com.alibaba.druid.sql.parser.Token;
+
+public class MySqlAlterTableTest25 extends TestCase {
+
+    public void test_alter_add_key() throws Exception {
+        String sql = "alter table xxxx add over bigint unsigned comment 'xxxx';";
+        MySqlStatementParser parser = new MySqlStatementParser(sql);
+        SQLStatement stmt = parser.parseStatementList().get(0);
+        parser.match(Token.EOF);
+        String output = SQLUtils.toMySqlString(stmt);
+        Assert.assertEquals("ALTER TABLE xxxx"
+                + "\n\tADD COLUMN over bigint UNSIGNED COMMENT 'xxxx'", output);
+    }
+}

src/test/java/com/alibaba/druid/demo/sql/LimitDetect.java

@@ -0,0 +1,9 @@
+package com.alibaba.druid.demo.sql;
+
+import junit.framework.TestCase;
+
+public class LimitDetect extends TestCase {
+    public void test_limit() throws Exception {
+        String sql = "select * from t limit 1";
+    }
+}