improve sql parser

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

@@ -53,4 +53,37 @@ public class MySqlCreateTableTest extends MysqlTest {
 
 //        Assert.assertTrue(visitor.getColumns().contains(new Column("mytable", "last_name")));
     }
+    
+    
+    public void test_1() throws Exception {
+        String sql = "CREATE TABLE `ins_ebay_auth` ("
+                + " `auth_id` int(10) NOT NULL AUTO_INCREMENT COMMENT '主键id',"
+                + " `usr_id` int(10) NOT NULL COMMENT '外键，用户表',"
+                + " `status` char(1) COLLATE utf8_bin NOT NULL COMMENT '状态 0.有效?1.无效',"
+                + " `ebay_token` varchar(255) COLLATE utf8_bin NOT NULL COMMENT 'eBay授权码',"
+                + " `ebay_name` varchar(50) COLLATE utf8_bin NOT NULL COMMENT 'eBay唯一名',"
+                + " `create_time` datetime NOT NULL COMMENT '授权时间', "
+                + " `invalid_time` datetime NOT NULL COMMENT '授权失效时间',"
+                + " PRIMARY KEY (`auth_id`)"
+                + " ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='INS_EBAY_AUTH';";
+
+        MySqlStatementParser parser = new MySqlStatementParser(sql);
+        List<SQLStatement> statementList = parser.parseStatementList();
+        SQLStatement statemen = statementList.get(0);
+        print(statementList);
+
+        Assert.assertEquals(1, statementList.size());
+
+        MySqlSchemaStatVisitor visitor = new MySqlSchemaStatVisitor();
+        statemen.accept(visitor);
+
+        System.out.println("Tables : " + visitor.getTables());
+        System.out.println("fields : " + visitor.getColumns());
+        System.out.println("coditions : " + visitor.getConditions());
+        System.out.println("orderBy : " + visitor.getOrderByColumns());
+        
+        Assert.assertEquals(1, visitor.getTables().size());
+        Assert.assertEquals(7, visitor.getColumns().size());
+        Assert.assertEquals(0, visitor.getConditions().size());
+    }
 }