I do not know about the word "domains" in this usage.
But all your problems with "varchar(x)" for any values of x are solved by just using type "text"
Harald
'email'(varchar 128). Then I change my mind and want to increase all columnst that have type 'emaill' to varchar(255).
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GHUM Harald Massa
persuadere et programmare
Harald Armin Massa
Reinsburgstraße 202b
70197 Stuttgart
0173/9409607