Handle ParameterStatus in PgStream

sqlx-core/src/postgres/connection/establish.rs

@@ -98,13 +98,6 @@ impl PgConnection {
                     }
                 },
 
-                MessageFormat::ParameterStatus => {
-                    // informs the frontend about the current (initial)
-                    // setting of backend parameters
-
-                    // we currently have no use for that data so we promptly ignore this message
-                }
-
                 MessageFormat::BackendKeyData => {
                     // provides secret-key data that the frontend must save if it wants to be
                     // able to issue cancel requests later

sqlx-core/src/postgres/connection/stream.rs

@@ -104,6 +104,14 @@ impl PgStream {
                     }
                 }
 
+                MessageFormat::ParameterStatus => {
+                    // informs the frontend about the current (initial)
+                    // setting of backend parameters
+
+                    // we currently have no use for that data so we promptly ignore this message
+                    continue;
+                }
+
                 MessageFormat::NoticeResponse => {
                     // do we need this to be more configurable?
                     // if you are reading this comment and think so, open an issue

tests/postgres/postgres.rs

@@ -546,3 +546,9 @@ async fn it_closes_statement_from_cache_issue_470() -> anyhow::Result<()> {
 
     Ok(())
 }
+
+#[sqlx_macros::test]
+async fn it_can_handle_parameter_status_message_issue_484() -> anyhow::Result<()> {
+    new::<Postgres>().await?.execute("SET NAMES 'UTF8'").await?;
+    Ok(())
+}