Fix for CONC-634:

Don't switch to compressed protocol if it's not supported by server.
mariadb-corporation · Feb 11, 2023 · 14df82c · 14df82c
1 parent 916000e
commit 14df82c
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/plugins/auth/my_auth.c b/plugins/auth/my_auth.c
@@ -262,7 +262,7 @@ static int send_client_reply_packet(MCPVIO_EXT *mpvio,
   if (mysql->client_flag & CLIENT_COMPRESS)
     mysql->options.compress= 1;
 
-  if (mysql->options.compress)
+  if (mysql->options.compress && (mysql->server_capabilities & CLIENT_COMPRESS))
   {
     /* For MySQL 8.0 we will use zstd compression */
     if (mysql->server_capabilities & CLIENT_ZSTD_COMPRESSION)