chore: add param reset test & tag release (#683)

- chore: add `RESET` test for #682
- chore: tag release

Author: levkk

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "pgdog"
-version = "0.1.18"
+version = "0.1.19"
 edition = "2021"
 description = "Modern PostgreSQL proxy, pooler and load balancer."
 authors = ["PgDog <hi@pgdog.dev>"]

pgdog/Cargo.toml

@@ -2450,4 +2450,38 @@ pub mod test {
             "state should be Error after detecting desync"
         )
     }
+
+    #[tokio::test]
+    async fn test_reset_clears_client_params() {
+        let mut server = test_server().await;
+        let mut params = Parameters::default();
+        params.insert("application_name", "test_reset");
+
+        // Sync params to server
+        let changed = server
+            .link_client(&BackendKeyData::new(), &params, None)
+            .await
+            .unwrap();
+        assert_eq!(changed, 1);
+
+        // Same params should not need re-sync
+        let changed = server
+            .link_client(&BackendKeyData::new(), &params, None)
+            .await
+            .unwrap();
+        assert_eq!(changed, 0);
+
+        // Execute RESET ALL which clears client_params
+        server.execute("RESET ALL").await.unwrap();
+
+        // Now link_client should need to re-sync because client_params was cleared
+        let changed = server
+            .link_client(&BackendKeyData::new(), &params, None)
+            .await
+            .unwrap();
+        assert!(
+            changed > 0,
+            "expected re-sync after RESET ALL cleared client_params"
+        );
+    }
 }

pgdog/src/backend/server.rs

@@ -679,4 +679,19 @@ mod test {
     fn test_empty_parameter_value() {
         assert_eq!(ParameterValue::String("".into()).to_string(), "''");
     }
+
+    #[test]
+    fn test_clear_resets_hash() {
+        let mut params = Parameters::default();
+        params.insert("application_name", "test_app");
+        params.insert("TimeZone", "UTC");
+
+        // Verify params are not identical to empty (hash differs)
+        assert!(!params.identical(&Parameters::default()));
+
+        params.clear();
+
+        // After clear, hash should be reset to match empty Parameters
+        assert!(params.identical(&Parameters::default()));
+    }
 }