c9e7ad90c6
Minor code cleanup: SQL already returns NULL in the "WHEN" condition if it is not matched by any of the cases. Co-authored-by: Eva Jelinkova <evka.jelinkova@gmail.com>
8 lines
220 B
PL/PgSQL
8 lines
220 B
PL/PgSQL
CREATE OR REPLACE FUNCTION normalize_capital_level(capital TEXT)
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RETURNS INT AS $$
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SELECT CASE
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WHEN capital IN ('yes', '2') THEN 2
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WHEN capital = '4' THEN 4
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END;
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$$ LANGUAGE SQL IMMUTABLE STRICT;
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