SELECT format('%2L %1L', 'first', 'second'); -- 'first' 'second' (sequential, incorrect)
SELECT format('%2$L %1$L','first', 'second'); -- 'second' 'first' (positional, correct)
SELECT format('%1L %1L', 'only'); -- ERROR: too few arguments for format()
SELECT format('%1$L %1$L','only'); -- 'only' 'only'
SELECT format('%20L %1L', 'first', 'second'); -- 'first' 'second' (13 leading whitespace)
https://github.com/electric-sql/pglite/blob/main/packages/pglite/src/utils.ts#L53-L56
formatQuery emits
%NLinstead of%N$L%NL is 'pad with whitespace to width=N'
NOT 'use argument at position N'