# name       : bug813587.patch
# maintainer : Alexey
#
# Fix for LP bug #813587 / MySQL bug #51196 / MySQL bug #61790
#
# Clear MySQL connection errors in ha_federated::close(), since they
# can affect queries on other tables due to table cache eviction.
#
--- a/storage/federated/ha_federated.cc
+++ b/storage/federated/ha_federated.cc
@@ -1675,6 +1675,8 @@
 
 int ha_federated::close(void)
 {
+  THD *thd= current_thd;
+
   DBUG_ENTER("ha_federated::close");
 
   free_result();
@@ -1685,6 +1687,10 @@
   mysql_close(mysql);
   mysql= NULL;
 
+  /* Clear possible errors from mysql_close(), see LP bug #813587. */
+  if (thd)
+    thd->clear_error();
+
   DBUG_RETURN(free_share(share));
 }