RosettaCodeData/Task/Nested-function/DuckDB/nested-function.duckdb

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create or replace function MakeList(sep, n) as (
select list_transform( range(1, n+1),
-- An inner function:
i -> format('{}{} {}',
i,
sep,
if(i=1, 'first', if (i=2, 'second', if (i=3, 'third' , '...')))) )
.array_to_string(chr(10))
);
.mode list
select MakeList('.', 3) ;