change

src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBStatement.java

@@ -17,6 +17,7 @@ package com.taosdata.jdbc;
 import java.sql.*;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.concurrent.TimeUnit;
 
 public class TSDBStatement implements Statement {
     private TSDBJNIConnector connector = null;
@@ -67,6 +68,12 @@ public class TSDBStatement implements Statement {
         // TODO make sure it is not a update query
         pSql = this.connector.executeQuery(sql);
 
+        try {
+            TimeUnit.SECONDS.sleep(10);
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+
         long resultSetPointer = this.connector.getResultSet();
 
         if (resultSetPointer == TSDBConstants.JNI_CONNECTION_NULL) {

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/MultiThreadsWithSameStatmentTest.java

@@ -31,7 +31,6 @@ public class MultiThreadsWithSameStatmentTest {
         Thread t1 = new Thread(() -> {
             try {
                 ResultSet resultSet = stmt.executeQuery("select * from jdbctest.weather");
-                sleep(5000);
                 while (resultSet.next()) {
                     ResultSetMetaData metaData = resultSet.getMetaData();
                     for (int i = 1; i <= metaData.getColumnCount(); i++) {