Clarity in fast_index_creation Percona documentation

[Raghavendra D Prabhu]

The page -- http://www.percona.com/doc/percona-server/5.5/management/innodb_fast_index_creation.html#disabling-fast-index-creation needs to be more clear in that:

1. For expand_fast_index_creation to work, fast_index_creation needs to be enabled as well.

2.

"""
This feature implements a session variable that disables fast index creation. This causes indexes to be created in the way they were created before fast index creation was implemented. While this is slower, it avoids the problem of data dictionary inconsistency between MySQL and InnoDB.
"""

That inconsistency won't be there if both fast_index_creation and
expand_fast_index_creation are enabled.

3. Some or all of the caveats mentioned in http://www.percona.com/doc/percona-server/5.5/management/innodb_expanded_fast_index_creation.html#caveats apply here as well.

4. Add http://bugs.mysql.com/bug.php?id=61146 to caveats if possible.

[Raghavendra D Prabhu (raghavendra-prabhu)]

Also, provide details on crash resilience on fast_index_creation in general and consequences, any, of it .

[Raghavendra D Prabhu (raghavendra-prabhu)]

Also add http://bugs.mysql.com/bug.php?id=57832 to the caveats section if possible.

[Shahriyar Rzayev (rzayev-sehriyar)]

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PS-1290