fix: query private table time zone bug.

src/observer/virtual_table/ob_agent_virtual_table.cpp

@@ -145,11 +145,19 @@ int ObAgentVirtualTable::do_open()
 {
   int ret = OB_SUCCESS;
   ObSqlString sql;
+  ObSessionParam session_param;
+  ObTimeZoneInfoWrap tz_wrap;
+  if (OB_NOT_NULL(session_)) {
+    tz_wrap.deep_copy(session_->get_tz_info_wrap());
+    session_param.tz_info_wrap_ = &tz_wrap;
+  } else {
+    session_param.tz_info_wrap_ = nullptr;
+  }
   if (OB_FAIL(ObAgentTableBase::do_open())) {
     LOG_WARN("base agent table open failed", KR(ret));
   } else if (OB_FAIL(construct_sql(base_tenant_id_, sql))) {
     LOG_WARN("construct sql failed", KR(ret), K(base_tenant_id_));
-  } else if (OB_FAIL(GCTX.sql_proxy_->read(*sql_res_, base_tenant_id_, sql.ptr()))) {
+  } else if (OB_FAIL(GCTX.sql_proxy_->read(*sql_res_, base_tenant_id_, sql.ptr(), &session_param))) {
     LOG_WARN("execute sql failed", KR(ret), K(base_tenant_id_), K(sql));
   } else if (OB_ISNULL(sql_res_->get_result())) {
     ret = OB_ERR_UNEXPECTED;

src/observer/virtual_table/ob_iterate_private_virtual_table.cpp

@@ -278,6 +278,14 @@ int ObIteratePrivateVirtualTable::next_tenant_()
   if (tenant_idx_ + 1 >= tenants_.count()) {
     ret = OB_ITER_END;
   } else {
+    ObSessionParam session_param;
+    ObTimeZoneInfoWrap tz_wrap;
+    if (OB_NOT_NULL(session_)) {
+      tz_wrap.deep_copy(session_->get_tz_info_wrap());
+      session_param.tz_info_wrap_ = &tz_wrap;
+    } else {
+      session_param.tz_info_wrap_ = nullptr;
+    }
     tenant_idx_ += 1;
     cur_tenant_id_ = tenants_.at(tenant_idx_);
     const uint64_t exec_tenant_id = get_exec_tenant_id_(cur_tenant_id_);
@@ -297,7 +305,7 @@ int ObIteratePrivateVirtualTable::next_tenant_()
       sql_res_->~ReadResult();
       inner_sql_res_ = NULL;
       new (sql_res_) ObMySQLProxy::MySQLResult();
-      if (OB_FAIL(GCTX.sql_proxy_->read(*sql_res_, exec_tenant_id, sql_.ptr()))) {
+      if (OB_FAIL(GCTX.sql_proxy_->read(*sql_res_, exec_tenant_id, sql_.ptr(), &session_param))) {
         LOG_WARN("execute sql failed", KR(ret), K(exec_tenant_id), K_(cur_tenant_id), K(sql_));
       } else if (OB_ISNULL(sql_res_->get_result())) {
         ret = OB_ERR_UNEXPECTED;