Test main.percona_expand_fast_index_creation is unstable

[Laurynas Biveinis]

On PS 5.6 trunk:

main.percona_expand_fast_index_creation w3 [ fail ]
        Test ended at 2016-10-13 05:38:40

CURRENT_TEST: main.percona_expand_fast_index_creation
--- /mnt/workspace/percona-server-5.6-trunk/BUILD_TYPE/debug/Host/ubuntu-wily-32bit/mysql-test/r/percona_expand_fast_index_creation.result 2016-10-13 10:29:46.026877933 +0300
+++ /mnt/workspace/percona-server-5.6-trunk/BUILD_TYPE/debug/Host/ubuntu-wily-32bit/build/mysql-test/var/3/log/percona_expand_fast_index_creation.reject 2016-10-13 12:38:40.369016980 +0300
@@ -97,7 +97,7 @@
 key NULL
 key_len NULL
 ref NULL
-rows 16
+rows 17
 Extra NULL
 id 1
 select_type SIMPLE
@@ -107,7 +107,7 @@
 key NULL
 key_len NULL
 ref NULL
-rows 16
+rows 17
 Extra Using where; Using join buffer (Block Nested Loop)
 ALTER TABLE t1 DROP KEY a;
 SET expand_fast_index_creation = 1;
@@ -126,7 +126,7 @@
 key NULL
 key_len NULL
 ref NULL
-rows 16
+rows 17
 Extra NULL
 id 1
 select_type SIMPLE
@@ -136,7 +136,7 @@
 key NULL
 key_len NULL
 ref NULL
-rows 16
+rows 17
 Extra Using where; Using join buffer (Block Nested Loop)
 SET expand_fast_index_creation = 0;
 DROP TABLE t1;

mysqltest: Result content mismatch

[Laurynas Biveinis (laurynas-biveinis)]

     https://github.com/percona/percona-server/pull/1206
     https://github.com/percona/percona-server/pull/1207

[Shahriyar Rzayev (rzayev-sehriyar)]

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PS-2213