【单选题】
You have table 'apps','userdata' on server that uses MyISAM storage engine.<br /> You want to transfer this data to server but use InnoDB engine instead. You execute the following commands: ServerB commands:<br /> Shell＞ mysqldump –u root –h server –no-data apps userdata | mysql –u root –p apps<br /> Shell＞ mysql –u root –p –h server –e 'ALTER TABLE 'apps','userdata' ENGINE=InnoDB;'<br /> Shell＞ mysqldump –u root –p –h server –no-create-info –order-by-primary apps userdata | mysql –u root –p apps<br /> What effect does the – order-by-primary argument have on the mysqldump command?（）
A、It exports tables with the most indexes first to assist with import speeds
B、It ensures that unique indexes have no conflicts when the data is dumped
C、It orders by primary key to assist in speeding up importing to InnoDB tables
D、It must be specified so index data is dumped correctly when –on-create-info is used
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