Square brackets are for lists/list arguments. Parentheses are when a pipeline/transforms need to be supplied, most notably with `group`. More details here: htt

Square brackets are for lists/list arguments. Parentheses are when a pipeline/transforms need to be supplied, most notably with `group`. More details here: https://prql-lang.org/book/queries/syntax.html https://prql-lang.org/book/queries/syntax.html