numerus/revert/expense_attachment.sql

-- Revert numerus:expense_attachment from pg

begin;

drop table if exists numerus.expense_attachment;

commit;
Add the relation to store the expense’s attachment files It is a separate table because we allow expenses to not have such an attachment, although we allow only an attachment per expense, and i do not want to have a bunch of nullable columns for that. I decided to keep the files in the database, contrary to “conventional wisdom” of storing files in the filesystem, because these attachments are invoices and such documets that are an integral part of the expense relation. In other words, losing these files would render the expense (almost) useless. Thus, the ACID guarantees of the database are the most appropriate place for them. 2023-05-13 19:23:24 +00:00			`-- Revert numerus:expense_attachment from pg`

			`begin;`

			`drop table if exists numerus.expense_attachment;`

			`commit;`