[stanac]

> Better option is to just add a new column with the correct definition

After that you won't be able to change column to NOT NULL. You would need migration to create new table with not null column, copy everything, drop old table and rename the new one.

Edit: unless the table is empty.

[yomismoaqui]

Wrong, you can change NOT NULL since 3.53:

https://sqlite.org/releaselog/3_53_3.html

[stanac]

Released a month ago, thanks, didn't know.

[grebc]

How do you migrate in place data that doesn’t convert between types while maintaining a strict condition like NOT NULL?

This is again a scenario I’ve never run into 20ish years of SQL.

[stanac]

You create a nullable column and then change it to not null. Which wasn't possible in SQLite until recently.

[grebc]

I’m not sure what your original point is pointing out.

Some data doesn’t convert is what I’m pointing out regardless of Postgres or SQLite.