[Mediawiki-l] two questions about the default used to create MySql database

[Frames Project]

Hello

I have usetwo questions about the default d by MediaWiki to create its 
MySql database :
1. why the innoDB type is chosen for the tables except
  hitcounter (HEAP)
  searchindex (MyISAM)

  may be I forgot to give some information at the configuration step?
  Is there a way to ask for MyISAM type for all ?

2. why I  got   latin1_swedish_ci for  *collation* and not some utf8 
character_set instead, did I missed some parametrization?

Thanks for helping.

Francois Colonna