diff --git a/gopher_tech.md b/gopher_tech.md
index 05609770e98b77c28fba050ba6a9a5059cd73905..fed8b029512a4bb076cc564aeecbbd9ceb07a063 100644
--- a/gopher_tech.md
+++ b/gopher_tech.md
@@ -296,18 +296,19 @@
 
 支持版本：openssl 1.1.1
 
-| metrics_name | table_name    | metrics_type | unit | KPI  | metrics description              |
-| ------------ | ------------- | ------------ | ---- | ---- | -------------------------------- |
-| tgid         |               | key          |      |      | 进程ID                           |
-| ins_id       |               | key          |      |      | 实例ID                           |
-| app          |               | key          |      |      | 应用名                           |
-| method       |               | key          |      |      | 请求方法                         |
-| server_ip    |               | label        |      |      | 服务端IP                         |
-| server_port  |               | label        |      |      | 服务端端口                       |
-| client_ip    |               | label        |      |      | 客户端IP                         |
-| client_port  |               | label        |      |      | 客户端端口                       |
-| rtt_nsec     | pg_sli        | gauge        | ns   | Y    | Postgre协议请求RTT               |
-| max_rtt_nsec | pg_max_sli    | gauge        | ns   | Y    | Postgre协议采样周期内最大请求RTT |
+| metrics_name | table_name | metrics_type | unit | KPI  | metrics description                   |
+| ------------ | ---------- | ------------ | ---- | ---- | ------------------------------------- |
+| tgid         |            | key          |      |      | 进程ID                                |
+| ins_id       |            | key          |      |      | 实例ID                                |
+| app          |            | key          |      |      | 应用名                                |
+| method       |            | key          |      |      | 请求方法                              |
+| server_ip    |            | label        |      |      | 服务端IP                              |
+| server_port  |            | label        |      |      | 服务端端口                            |
+| client_ip    |            | label        |      |      | 客户端IP                              |
+| client_port  |            | label        |      |      | 客户端端口                            |
+| rtt_nsec     | pg_sli     | gauge        | ns   | Y    | Postgre协议请求RTT                    |
+| max_rtt_nsec | pg_max_sli | gauge        | ns   | Y    | Postgre协议采样周期内最大请求RTT      |
+| tps          | pg_tps     | gauge        |      | Y    | 数据库吞吐量，目前只支持openGauss 2.0 |
 
 # HTTP SLI