From 149c7c3a40ae06ad795d1c875a23296d2f681559 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ren=C3=A9=20Canna=C3=B2?= <rene.cannao@gmail.com>
Date: Sat, 28 Sep 2019 18:10:24 +1000
Subject: [PATCH] More verbose output for error 2019 #2273

If the backend doesn't support the charset required by the client, an error is returned.
This commit adds more verbosity.
---
 lib/MySQL_Session.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/MySQL_Session.cpp b/lib/MySQL_Session.cpp
index 4e1169443..c07d12acc 100644
--- a/lib/MySQL_Session.cpp
+++ b/lib/MySQL_Session.cpp
@@ -2907,6 +2907,7 @@ bool MySQL_Session::handler_again___status_CHANGING_CHARSET(int *_rc) {
 			int myerr=mysql_errno(myconn->mysql);
 			if (myerr >= 2000) {
 				if (myerr == 2019) {
+					proxy_error("Client trying to set a charset/collation (%d) not supported by backend (%s:%d). Changing it to %d\n", client_myds->myconn->options.charset, myconn->parent->address, myconn->parent->port, mysql_thread___default_charset);
 					client_myds->myconn->options.charset = mysql_thread___default_charset;
 				}
 				bool retry_conn=false;