Best way to store case-insensitive data?
От | Mike Christensen |
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Тема | Best way to store case-insensitive data? |
Дата | |
Msg-id | AANLkTin-73Ekq7RUzmLibndS0XkgTFY2WD3buPREcYJD@mail.gmail.com обсуждение исходный текст |
Ответы |
Re: Best way to store case-insensitive data?
Re: Best way to store case-insensitive data? Re: Best way to store case-insensitive data? Re: Best way to store case-insensitive data? Re: Best way to store case-insensitive data? |
Список | pgsql-general |
I have a column called "email" that users login with, thus I need to be able to lookup email very quickly. The problem is, emails are case-insensitive. I want foo@bar.com to be able to login with FOO@Bar.com as well. There's two ways of doing this, that I can see: 1) Every time I lookup an email in the database, do a case-insensitive ilike, or cast both sides with LOWER(). I think both are slow, correct? 2) Every time the user updates or saves their email, store it in lowercase, and every time I lookup an email, pass in a lowercase email. This is somewhat of a bug farm because one might miss some little spot in a piece of code where an email is compared or updated. Is there any way to tell postgres to always store data in lowercase form, or just have a flat out case-insensitive column? Thanks! Mike
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