fix: pass client_found_rows on latest mysql_async

src/connector/mysql.rs

@@ -314,7 +314,9 @@ impl MysqlUrl {
             .stmt_cache_size(Some(0))
             .user(Some(self.username()))
             .pass(self.password())
-            .db_name(Some(self.dbname()));
+            .db_name(Some(self.dbname()))
+            // See https://github.com/prisma/prisma-engines/pull/3679 as to why this is needed.
+            .client_found_rows(true);
 
         match self.socket() {
             Some(ref socket) => {

src/tests/query.rs

@@ -3564,3 +3564,23 @@ async fn overflowing_int_errors_out(api: &mut dyn TestApi) -> crate::Result<()>
 
     Ok(())
 }
+
+// TODO: Couldn't run this test on latest MySQL because of a compile error
+// TODO: Once the compile error is fixed and we get back to latest MySQL,
+// TODO: Uncomment me and make sure it returns `1` for mysql on a noop update
+// async fn noop_update(api: &mut dyn TestApi) -> crate::Result<()> {
+//     let table = api.create_temp_table("id int4 name varchar(255)").await?;
+//
+//     let insert = Insert::multi_into(&table, vec!["id", name])
+//         .values(vec![1, "Romulus"])
+//         .values(vec![2, "Remus"]);
+//
+//     api.conn().query(insert.into()).await?;
+//
+//     let update = Update::table(&table).set("name", "Romulus").so_that("id".equals(1));
+//     let changes = api.conn().execute(update.into()).await?;
+//
+//     assert_eq!(1, changes);
+//
+//     Ok(())
+// }