From f133c00223627d3182d0c29c657fcf353a03b10d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=95=86=E8=AE=AF=E5=9C=A8=E7=BA=BF?= <swhbox@foxmail.com>
Date: Mon, 5 May 2014 23:08:17 +0800
Subject: [PATCH] bug fixed
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Signed-off-by: 商讯在线 <swhbox@foxmail.com>
---
 mysql_dialect.go | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/mysql_dialect.go b/mysql_dialect.go
index 66107c47..637a4af2 100644
--- a/mysql_dialect.go
+++ b/mysql_dialect.go
@@ -151,6 +151,9 @@ func (db *mysql) GetColumns(tableName string) ([]string, map[string]*core.Column
 
 		if colDefault != nil {
 			col.Default = *colDefault
+			if col.Default == "" {
+				col.DefaultIsEmpty = true
+			}
 		}
 
 		cts := strings.Split(colType, "(")
@@ -203,6 +206,10 @@ func (db *mysql) GetColumns(tableName string) ([]string, map[string]*core.Column
 		if col.SQLType.IsText() {
 			if col.Default != "" {
 				col.Default = "'" + col.Default + "'"
+			} else {
+				if col.DefaultIsEmpty {
+					col.Default = "''"
+				}
 			}
 		}
 		cols[col.Name] = col