Code review comment for lp:~laurynas-biveinis/percona-server/fake-changes-from-fb-5.5

For 5.5 the index cardinality stats are unstable even with ANALYZE TABLE, innodb_stats_on_metadata=OFF, innodb_stats_sample_pages=30000, innodb_stats_auto_update=0. This is bug 1201802, and until it's fixed, the SHOW INDEXES have to be removed from there. 5.6 is OK.