When do Postgres column or table names need quotes and when don't they?

Question

Let\'s consider the following postgres query:

SELECT * 
FROM \"MY_TABLE\"
WHERE \"bool_var\"=FALSE 
 AND \"str_var\"=\'something\';

The que

Answer 1

Thanks to @TimBiegeleisen's comment, I was able to pinpoint the problem; I used a reserved keyword ("user") as a column name.

Link to reserved keywords in the doc: https://www.postgresql.org/docs/current/sql-keywords-appendix.html.

Now I know not to use quotes to query column names, but rather to avoid reserved keywords as column names.