An app needs a "Setup the Database" routine correct ?

[Alex Clay]

On Jan 24, 2018, at 20:44, Doug Easterbrook <doug at artsman.com> wrote:

> with postgres, you just run your app.. constantly ..  adding the field when you want —the act of adding a field does not affect anybody else.

And PostgreSQL allows you to modify the schema in a transaction so if something goes wrong, just roll back!

For more jargon, that's running DDL (data definition language) statements under MVCC (multi-version concurrency control).

Alex