If a database contains tables of type MRG_MyISAM, the
number of records in the merged table is added to the
number of records in 'real' tables when
db_details_structure.php calculates the total number of
records in that database.
IMO this is not correct: MRG_MyISAM tables don't have
any records of their own -- they're just a merged view
of other tables within the same database.
So, when calculating the total number of records within
a database, tables of type MRG_MyISAM should be
ignored.
Moved to bugs
Fixed in subversion, thanks for reporting.