change test case

src/connector/jdbc/src/test/java/com/taosdata/jdbc/rs/RestfulDatabaseMetaDataTest.java

@@ -1095,7 +1095,7 @@ public class RestfulDatabaseMetaDataTest {
         stmt.execute("drop database if exists log");
         stmt.execute("create database if not exists log precision 'us'");
         stmt.execute("use log");
-        stmt.execute("create table `dn` (ts TIMESTAMP,cpu_taosd FLOAT,cpu_system FLOAT,cpu_cores INT,mem_taosd FLOAT,mem_system FLOAT,mem_total INT,disk_used FLOAT,disk_total INT,band_speed FLOAT,io_read FLOAT,io_write FLOAT,req_http INT,req_select INT,req_insert INT) TAGS (dnodeid INT,fqdn BINARY(128))");
+        stmt.execute("create table dn (ts TIMESTAMP,cpu_taosd FLOAT,cpu_system FLOAT,cpu_cores INT,mem_taosd FLOAT,mem_system FLOAT,mem_total INT,disk_used FLOAT,disk_total INT,band_speed FLOAT,io_read FLOAT,io_write FLOAT,req_http INT,req_select INT,req_insert INT) TAGS (dnodeid INT,fqdn BINARY(128))");
         stmt.execute("insert into dn1 using dn tags(1,'a') (ts) values(now)");
 
         metaData = connection.getMetaData().unwrap(RestfulDatabaseMetaData.class);