Best Practices for Storing and Validating Email Addresses in PostgreSQL?

Hello everyone!

I’m wondering what the best approach is for storing email addresses in PostgreSQL.

From my research, I’ve learned that an email address can be up to 320 characters long and as short as 6 characters.

Also, I noticed that the unique constraint is case-sensitive, meaning that changing a few characters between upper and lower case still allows duplicates.

Additionally, I’m considering adding regex validation at the database level to ensure the email format is valid. I’m thinking of using the HTML5 email input regex.

Is this approach correct? Is there a better way to handle this? I’d appreciate any guidance!