Update sqlalchemy.py

[soulee-dev]

Solution for Issue: #343

The reason why i set length like this

Email address can't exceed 320 References: https://www.rfc-editor.org/rfc/rfc3696.txt
Hashed Password(on bcrypt)'s maximum length is 72
Tokens are must to have sufficient length

[codecov]

Codecov Report

Merging #344 into master will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master      #344   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           21        21           
  Lines          778       778           
=========================================
  Hits           778       778           

Impacted Files	Coverage Δ
fastapi_users/db/sqlalchemy.py	100.00% <100.00%> (ø)

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[frankie567]

Sounds sensible, thanks! However, I'm a bit surprised at the length you provided. I assumed VARCHAR couldn't exceed 255 characters. Am I wrong on this?

[soulee-dev]

VARCHAR's length can be up to 65,535 after MySQL 5.0.3.
11.3.2 The CHAR and VARCHAR Types

And up to 85% uses a newer version than MySQL 5.1.
MySQL 8.x Adoption Rate – Survey Results

[frankie567]

How, since 2005! Definitely, my DB teacher was not up to date on this (I passed my CS degree in 2013!). Thank you!

All good, then!

[frankie567]

@all-contributors add @lill74 for bug, code

[allcontributors]

@frankie567

I've put up a pull request to add @lill74! 🎉