alt Hacker NewsThis comment reads crazy poorly.
Like, if the simple insert, read, update and delete SQL queries are forbidden then what do you guys do all day?
Are you really doing inserts exclusively based on the data of another table? You never take user input from a website? You never need to just get a list of data according to a query with some filtering?
Honestly I'm not buying it, since the opposite would basically require you to write Hasura style monster queries for pgsql all day.
An invariant is something that must always be true. The most basic example of this is a not-null foreign key, where a value in one table refers to a row in another table and that row in the other table must always exist.
> Are you really doing inserts exclusively based on the data of another table? You never take user input from a website? You never need to just get a list of data according to a query with some filtering?
None of these go against what GP said in any way.