10 lines
305 B
PL/PgSQL
10 lines
305 B
PL/PgSQL
CREATE OR REPLACE FUNCTION normalize_capital_level(capital text)
|
|
RETURNS int AS
|
|
$$
|
|
SELECT CASE
|
|
WHEN capital = 'yes' THEN 2
|
|
WHEN capital IN ('2', '3', '4', '5', '6') THEN capital::int
|
|
END;
|
|
$$ LANGUAGE SQL IMMUTABLE
|
|
STRICT
|
|
PARALLEL SAFE;
|