From c3818ff064a13e2a413425adbec33aa6ef3689e7 Mon Sep 17 00:00:00 2001
From: ljhrot <296093710@qq.com>
Date: Sat, 25 Jul 2020 23:07:13 +0800
Subject: [PATCH] Fix bad SQL grammar (#3445)

---
 .../repository/embedded/EmbeddedStoragePersistServiceImpl.java  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/config/src/main/java/com/alibaba/nacos/config/server/service/repository/embedded/EmbeddedStoragePersistServiceImpl.java b/config/src/main/java/com/alibaba/nacos/config/server/service/repository/embedded/EmbeddedStoragePersistServiceImpl.java
index cf9e19124..7e5298de1 100755
--- a/config/src/main/java/com/alibaba/nacos/config/server/service/repository/embedded/EmbeddedStoragePersistServiceImpl.java
+++ b/config/src/main/java/com/alibaba/nacos/config/server/service/repository/embedded/EmbeddedStoragePersistServiceImpl.java
@@ -2194,7 +2194,7 @@ public class EmbeddedStoragePersistServiceImpl implements PersistService {
     
     @Override
     public boolean isExistTable(String tableName) {
-        String sql = String.format("select 1 from %s limit 1", tableName);
+        String sql = String.format("SELECT 1 FROM %s FETCH FIRST ROW ONLY", tableName);
         try {
             databaseOperate.queryOne(sql, Integer.class);
             return true;