From 7fa018ca0c5714fe0f2a11279824f3ae927f95a8 Mon Sep 17 00:00:00 2001
From: thinkphp <thinkphp@qq.com>
Date: Tue, 3 Jan 2017 14:37:41 +0800
Subject: [PATCH] =?UTF-8?q?=E6=94=B9=E8=BF=9BMysql=E9=A9=B1=E5=8A=A8?=
 =?UTF-8?q?=E7=9A=84getFields=E6=96=B9=E6=B3=95?=
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---
 library/think/db/connector/Mysql.php | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/library/think/db/connector/Mysql.php b/library/think/db/connector/Mysql.php
index fd6f4ece..31435694 100644
--- a/library/think/db/connector/Mysql.php
+++ b/library/think/db/connector/Mysql.php
@@ -51,10 +51,13 @@ class Mysql extends Connection
     {
         $this->initConnect(true);
         list($tableName) = explode(' ', $tableName);
-        if (strpos($tableName, '.')) {
-            $tableName = str_replace('.', '`.`', $tableName);
+        if (false === strpos($tableName, '`')) {
+            if (strpos($tableName, '.')) {
+                $tableName = str_replace('.', '`.`', $tableName);
+            }
+            $tableName = '`' . $tableName . '`';
         }
-        $sql = 'SHOW COLUMNS FROM `' . $tableName . '`';
+        $sql = 'SHOW COLUMNS FROM ' . $tableName;
         // 调试开始
         $this->debug(true);
         $pdo = $this->linkID->query($sql);