-- EVEROP: pictures for brands, collections and banners are stored as binary inside the row (same as products). Run once.
ALTER TABLE brands      ADD COLUMN logo_mime   VARCHAR(40) NULL, ADD COLUMN logo_sha1   CHAR(40) NULL, ADD COLUMN logo_data   MEDIUMBLOB NULL;
ALTER TABLE collections ADD COLUMN banner_mime VARCHAR(40) NULL, ADD COLUMN banner_sha1 CHAR(40) NULL, ADD COLUMN banner_data MEDIUMBLOB NULL;
ALTER TABLE banners     ADD COLUMN image_mime  VARCHAR(40) NULL, ADD COLUMN image_sha1  CHAR(40) NULL, ADD COLUMN image_data  MEDIUMBLOB NULL;