From 6b9134a064e8a93c96a87212084c92340878fa84 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mr=C2=B7x?= <as2252258@163.com>
Date: Thu, 5 Nov 2020 19:06:57 +0800
Subject: [PATCH] =?UTF-8?q?=E6=94=B9=E5=90=8D?=
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---
 Database/Mysql/Columns.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Database/Mysql/Columns.php b/Database/Mysql/Columns.php
index 00add674..04357456 100644
--- a/Database/Mysql/Columns.php
+++ b/Database/Mysql/Columns.php
@@ -275,7 +275,7 @@ class Columns extends Component
 	 */
 	private function structure($table)
 	{
-		if (isset($this->columns[$table])) {
+		if (!isset($this->columns[$table]) || empty($this->columns[$table])) {
 			$sql = $this->db->getBuild()->getColumn($table);
 			$column = $this->db->createCommand($sql)->all();
 			if (empty($column)) {