Hi, I'm building a migration and need a MEDIUMBLOB column in case of MySQL or 
BYTEA in case of Postgres.

BYTEA has no size contrains while MySQL's BLOB is limited to 64k so I need 
MEDIUMBLOB.

AFAIK the only way to generate such column is:

  column  :doc, File

This generates BYTEA for Postgres, but it generates BLOB for MySQL.
I've also tryed:

   column  :doc, File, :size => 999999999

with same result.

The only workaround I can imagine is using a "if" stament to inspect the 
database schema and use:

  case schema
  when :mysql
    mediumblob  :doc
  when :posgres
    bytea  :doc
  end

but I would really avoid such workaround. Is there a way to achieve what I 
want?

Thanks a lot.
        
  bytea    :doc

-- 
Iñaki Baz Castillo <[email protected]>

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