Merge remote-tracking branch 'origin/10.2' into bb-10.2-ext

Conflicts:
	mysql-test/r/cte_nonrecursive.result
	mysql-test/suite/galera/r/galera_bf_abort.result
	mysql-test/suite/galera/r/galera_bf_abort_get_lock.result
	mysql-test/suite/galera/r/galera_bf_abort_sleep.result
	mysql-test/suite/galera/r/galera_enum.result
	mysql-test/suite/galera/r/galera_fk_conflict.result
	mysql-test/suite/galera/r/galera_insert_multi.result
	mysql-test/suite/galera/r/galera_many_indexes.result
	mysql-test/suite/galera/r/galera_mdl_race.result
	mysql-test/suite/galera/r/galera_nopk_bit.result
	mysql-test/suite/galera/r/galera_nopk_blob.result
	mysql-test/suite/galera/r/galera_nopk_large_varchar.result
	mysql-test/suite/galera/r/galera_nopk_unicode.result
	mysql-test/suite/galera/r/galera_pk_bigint_signed.result
	mysql-test/suite/galera/r/galera_pk_bigint_unsigned.result
	mysql-test/suite/galera/r/galera_serializable.result
	mysql-test/suite/galera/r/galera_toi_drop_database.result
	mysql-test/suite/galera/r/galera_toi_lock_exclusive.result
	mysql-test/suite/galera/r/galera_toi_truncate.result
	mysql-test/suite/galera/r/galera_unicode_pk.result
	mysql-test/suite/galera/r/galera_var_auto_inc_control_off.result
	mysql-test/suite/galera/r/galera_wsrep_log_conficts.result
	sql/field.cc
	sql/rpl_gtid.cc
	sql/share/errmsg-utf8.txt
	sql/sql_acl.cc
	sql/sql_parse.cc
	sql/sql_partition_admin.cc
	sql/sql_prepare.cc
	sql/sql_repl.cc
	sql/sql_table.cc
	sql/sql_yacc.yy

sql/sql_select.cc

@@ -1205,7 +1205,7 @@ JOIN::optimize_inner()
 
   /*
     Needed in case optimizer short-cuts,
-    set properly in make_tmp_tables_info()
+    set properly in make_aggr_tables_info()
   */
   fields= &select_lex->item_list;