On Wed, 2006-04-19 at 09:33 +0200, Hagen Höpfner wrote:
> perhaps a stupid question but I need to know it ;-) The internals
> documentation describes how MyISAM stores attribute values physically
> (text encoding, date transformation, etc. ...). How is this done in
> InnoDB or BDB? I know that InnoDB uses it's own dataset format. Does the
> binary encoding of the attribute values differs too? And ... if not, is
> it equal for all MySQL storage engines?
As Serg has said, it differs.
The conversion routines are in the handlers for each storage engine -
sometimes in different ways. Have a look at what csv (ha_tina) does. NDB
(ha_ndbcluster) has a function that does it all IIRC.
Sometimes the conversion is a no-op.
Some engines can just use the internal row format (I think ARCHIVE does
this).
--
Stewart Smith, Software Engineer
MySQL AB, www.mysql.com
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