php - OpenCart User Database [BLOB - 198B] -

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in opencart database layer have follow example

firstname   cart        wishlist john        [blob - 132b]   [blob - 0b] sarah       [blob - 198b]   [blob - 19b]

what blob , can create own? (i creating external register page not using official one) can use same fields or leave them blank?

the mysql record shows (phpmyadmin):

field: cart type: text length/values: blank default: null collation: ut8_bin attributes: blank  null: checked auto increment: not checked comments: blank

the cart , wishlist fields automatically filled saved data cart , wishlist respectively logged in users. they're used remember person has added cart/wishlist when log in again. cart field reset when person makes purchase


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